Professional Audio Equipment
Contents
1. Mono Low Left High Right High z5 BE O AAN FR JA P i A FEN i 8 Z ms 4000 CE 1000 Right Mid Right High Left Mid dbx by HARMAN EE 6 3 Stereo 2 Way Hardware 1 Connect the outputs from the mixer to the inputs of the DriveRack PA 2 Connect the outputs of the DriveRack PA to the selected speaker amplifier 3 Make sure that the mixer and power amps are turned off prior to powering up the DriveRack PA Front Panel Editing 1 From Preset mode select factory preset 27 Stereo 2 Way as a template or use the Wizard to set up the specific preset 2 Once the preset has been chosen press the Data Wheel to load the preset Left Low Right Low Left High SD Left High Right High bx by HARMAN by HARMAN 6 4 Stereo 2 Way with Mono Sub Hardware 1 Connect the outputs from the mixer to the inputs of the DriveRack PA 2 Connect the outputs of the DriveRack PA to the selected speaker amplifier 3 Make sure that the mixer and power amps are turned off prior to powering up the DriveRack PA Front Panel Editing 1 From Preset mode select factory preset 27 Stereo 2 Way as a template or use the Wizard to set up the specific preset 2 On2. Odd Pueg z sawn dois xeed Aejag juawubliy Right Mid o s v exz gt Left Low Odd Pueg z Aejag gt Right Low Joy dois Connections When setting up the DriveRack PA make connections as follows e Always make connections prior to applying power to the unit e Connect the output from the sending device mixer to either of the two XLR Input connectors shown below Left to left and right to right is recommended pU by HARMAN e Make output connections from the six output XLR connectors on the back panel to the input of the selected power amplifiers Low out to low amp mid out to mid amp and high out to high amp as needed e Ifyou will be pinking Auto EQing the room through the use of the pink noise generator RTA microphone and the Auto EQ Wizard connect the RTA microphone to the front panel XLR input e IMPORTANT It is essential that the power amps are turned off prior to cycling power to the DriveRack PA It is standard practice to make sure that your power amps are the last item turned on and the first turned off Once all of the connections have been made and the unit is powered up you can navigate through the entire signal path of the DriveRack PA from the front panel of the unit The display provides you with a clear and concise overview of each aspect of the signal path from the input to the output section dbx by HARMAN
3. Section 3 Editing Functions 3 1 Basic Navigation Modes The DriveRack PA has been carefully designed and engineered to ensure that all aspects of operation are intuitive and logical Simply stated the DriveRack PA operating system was designed with the user s best interest in mind Navigational aspects of the DriveRack PA are clear concise and more important they are flexible The DriveRack PA provides you with essentially three different modes of navigation when performing preset edits 3 2 Button Array Overview PREVIOUS PAGE Used to navigate back through the various pages of any effect or WIZARD NEXT PAGE Used to navigate forward through the various pages of any effect or WIZARD EQ Used to move to the EQ modules Successive presses will move you through the EQ modules in the input section and through EQ modules located in the output section FEEDBACK Used to move to the Automatic Feedback Suppression module XOVER Used to move to the Crossover module SUBHARMONIC Used to move to the Subharmonic Synthesizer module COMP LIMITER Used to move to the Input Compressor or Output Limiter modules Successive presses will move you through the Input Compressor and Output Limiter modules DELAY Used to move to the Delay modules PRESET RECALL Press to view the currently loaded preset Press and hold to scroll through presets where you can press the Data Wheel to load a new preset or press th
4. 112 dB A weighted 110 dB unweighted 48 kHz 110 dB A weighted gt 107 dB unweighted 0 004 typical at 4dBu 1 kHz 0 dB input gain 20 Hz 20 kHz 0 5dB 110 dB 120 dB typical 100 dB 100 120VAC 50 60 Hz EU 220 240 VAC 56 60 Hz 25 Watts 5 5 lbs 2 5 kg Shipping weight 7 lbs 3 18 kg 1 75 4 4cm x 5 75 14 6cm D x 19 48 26 W by HARMAN A 7 AUTO EQ Optimization Tips By using the Setup Wizard cross over output gains and post cross over parametric EQ settings are set to match your system The Auto EQ Wizard can be used to adjust your system to compensate for room effects and adjust the response of the entire system to your liking After allowing Auto EQ to pink the room your system will sound tighter The low end will have more definition the mids will be more intelligible and the highs can be tamed Here are two things to look for to get the best performance from the Auto EQ Look out for Modes Some speaker and RTA microphone positions will result in certain frequencies canceling out The resulting modes can not be corrected with equalization The Auto EQ does not detect modes in the frequency response so may try to boost a band to compensate for a mode with out positive affect You may be able to see if a lifted band is a mode by manually adjusting a lifted EQ band if no change in the EQ is perceived you probably are seeing a mode in your frequency response To reduce the
5. LCD Display The backlit LCD display of the DriveRack PA provides the user with all of the vital processing information for the DriveRack PA including signal routing effect block editing and Wizard functions The display will also notify the user if any internal clipping is taking place within the unit The following message will appear CLIP Function Buttons The function button array of the DriveRack PA allows direct access to all editing and navigating functions Input Headroom Meters The DriveRack PA provides the user with two independent six segment input headroom meters that range from Signal Present to 0 dBFS maximum input These meters monitor the signal level right after the input module Output Headroom Meters The DriveRack PA provides the user with six independent five segment output headroom meters that range from Signal Present to 0 dBFS maximum output Threshold Meters The three color threshold meters indicate that the threshold level has been exceeded within the Limiter section and gain reduction may be taking place within the specific output channel Green is under threshold Yellow is at threshold and Red is over threshold Output Mute Buttons Each output channel of the DriveRack PA contains a Mute button dbx by HARMAN EE 2 3 Installation Steps Make sure that the power outlet that your DriveRack PA is to be plugged into is correct and appropriate for the unit you purchased Using the mounting
6. LIMITER Over Easy Off 1 10 Threshold 40 20dB E Successive presses of the Data Wheel will toggle between effect parameters within the currently selected page 3 8 Navigating the Delay Section From preset mode press the Delay button Pressing the Data Wheel will select the effect parameter to be edited DELAY lt PREV PG NEXT PG gt DELAY Delay On Off Length Delay Time Course Fine Units Seconds Feet Meters The PREV PG and NEXT PG buttons scroll through the pages of the selected module Successive presses of the Data Wheel will toggle between effect parameters within the currently selected page dbx by HARMAN 3 9 Navigating the Utility Section From preset mode press and hold the UTILITY button Pressing the Data Wheel will select the parameter to be edited UTILITY UTILITY PREV PG NEXT PG P LCD Contrast 1 16 Meter Page MAC Address AEQ Plot RTA GEQ Gain and Threshold Firmware Version Sales Banner On Off meters Successive presses of the Data Wheel will toggle between parameters within the currently selected page on 3 10 Navigating the Wizard Section From preset mode press and hold one of the WIZARD buttons SETUP AUTO EQ or AFS lt PREV PG Sao SETUP PRESS AND HOLD TO ACCESS SETUP WIZARD Pressing RTA anywhere in the Setup Wizard skips to to AUTO LEVEL Connect Input Setup Stereo or GEQ Setup Main Speaker Select Sub
7. PA offers a wide range of tools for sound system design and setup These tools can make your system more efficient and better sounding but to get the best possible sound it is important to use these tools properly In the DriveRack PA we have included a Setup Wizard tool to help in system setup If you use the Setup Wizard to set up your DriveRack PA it will automatically set the limiters for some amplifier selections If your amplifiers are not available in the Setup Wizard you should choose the Custom setting The following section explains how to maximize system gain and how to use the limiters to protect your amplifiers from clipping In traditional system design the output of your console would be routed to a system EQ a compressor and a crossover with output level control From the crossover there may be additional filters that are employed to improve the response of your speakers There may also be limiters set up to keep your amplifiers from going into clipping and protect your speakers from the hazards of a clipped signal Your amplifiers play a vital role in system setup because they are last item in the chain before your speakers and offer the greatest amount of gain that is their job after all If your amplifiers are incorrectly setup you will not be using your system to its fullest potential and could be harming your speakers One thing that is critical to system setup is maximizing gain structure Gain structure refers to al
8. Gain 12dB to12dB Bell HSelf LShelf LHShelf Q 20 to 16 0 Q 20 to 16 0 0 20 to 16 0 GEQ PEQ Successive presses of the Data Wheel will toggle between parameters within the currently selected page 3 4 Navigating the Subharmonic Section From preset mode press the SUBHARMONIC button Pressing the Data Wheel will select the parameter to be edited lt PREV PG NEXT PG gt SUBHARMONIC SUBHARMONIC Subharmonic On Off 24 36Hz Level 0 100 P Subharmonics 0 100 36 56Hz Level 0 100 The PREV PG and NEXT PG buttons scroll through the pages of selected module Successive presses of the Data Wheel will toggle between parameters within the currently selected page dbx by HARMAN 3 5 Navigating the Crossover Section To edit the parameters of the Crossover used in a selected preset simply use the following procedure From preset mode press the XOVER button Once you have reached the Crossover module Navigate through the Pages of the selected Crossover module by pressing the Next Page or Prev Page buttons successively until arriving at the desired Page M PREV PG NEXT PG gt CJE MM e XOVER XOVER High Pass Low Pass High Pass Low Pass Freq Out to 20 kHz Freq 20 Hz to Out Freq 20 Hz to Qut Type BW6 24 LR12 24 Type BW6 24 LR12 24 Type BW6 24 LR12 24 Gain Inf to 20dB Low Mid Successive presses of the Data Wheel will toggle between effect parameters withi
9. Speaker Select Main Speaker Mono Stereo or See list See list Levels Stereo Linked NEXT PG gt Sub Speaker Levels Load New Auto level Pink Noise Level Auto level Preset Connect Mic Inf to 20dB Complete AUTO EQ AUTO EQ PRESS AND HOLD TO ACCESS AUTO EQ WIZARD The NEXT and Connect Mic Pink Noise Level Target Curve Auto EQ PREV buttons Inf to 20dB scroll through the pages of selected module AFS PRESS AND HOLD TO ACCESS AFS WIZARD Mixer gain turn Select Number of Select Type Mixer Gain Adjust Fixed Filter Setup down prompt Fixed Filters Low Med High mode Done 0 12 Successive presses of the Data Wheel will toggle between parameters within the currently selected page dbx by HARMAN Section 4 Operating Functions The Operation section of the DriveRack PA will be your key to successful navigation The following information provides descriptions about preset functions and operating functions of the DriveRack PA 4 1 Preset Definition The first step in understanding the thorough preset capabilities of the DriveRack PA is to understand the elements involved that when combined define a complete preset Within an individual preset there are several levels of editing that make up the complete preset After turning the unit on you will be at the preset mode level This level supplies the user with current preset information such as current signal path effect usage and preset na
10. effect of this mode try different microphone positions and adjust the location of your speakers then repink the room for a more effectual Graphic EQ adjustment Adjust Cross Over Output Gains If your system setup or the response you have chosen results in the Auto EQ lifting or cutting a number of consecutive bands of the Graphic EQ you can adjust the level of the associated cross over output gain to match the average boost or cut in the graphic EQ and repink your room This time the adjustment of the Graphic EQ bands will be less heavy handed and the system will sound better having fewer phase problems and a lower noise floor than a more aggressively adjusted Graphic EQ With the rest of your system properly adjusted the Auto EQ can compensate for room resonance and adjust to suit personal taste without large excursions in the Graphic EQ bands dbx by HARMAN A8 Block Diagram E 9 z 2 2 2 I 2 d z E 5 i 3 o o 4 o9 d x ra d ra o 6 o D lc gt Alignment Delay Alignment Delay Alignment Delay Peak Stop Limiter Peak Stop Limiter Peak Stop Limiter 3 Band PEQ 2 Band PEQ 2 Band PEQ Crossover Section 2X3 4 5 6 Stereo Compressor SubHarmonic Synth AFS Notch Filters Stereo Mono Micr Pre amp Pink Noise Left Input Right Input Mic Input dL by HARMAN A 9 System Setup and Gain Structure The DriveRack
11. includes the exclusive patent pending AFS Advanced Feedback Suppression feedback elimination module Feedback is caused when a signal such as a guitar pickup or microphone is reproduced by a speaker and is repeatedly picked up in phase through the same pickup or microphone The AFS uses precision frequency detection and state of the art processing to determine the exact portions of a given frequency of your feedback that needs to be removed instead of taking out large sections of your sound The AFS module of the DriveRack PA allows the user to optimize the elimination of feedback In the past graphic equalizers were used to eliminate feedback from a system This was an acceptable method for eliminating feedback but when this method was precision tested the result clearly showed that a single 1 3 octave EQ slider was removing approximately half of the signal power With AFS the precision filters remove only a fraction of the frequency spectrum The diagram on the frollowing page shows AFS as opposed to competitive feedback eliminators and conventional graphic EQs dbx by HARMAN EE AFS Comparison Chart Ap d e 5 sf ompetitors u as Graphic 600 700 800 9 1k 1 1k 1 2k 1 3k 1 4k Hz AFS On Off Turns the AFS9 module on and off If AFS is Off the filters are bypassed and the algorithm is halted the filters are not updated If AFS is On the filters are
12. screws provided screw the DriveRack PA into an appropriate rack Make sure that there is proper ventilation The sides and back of the device should be free of any obstruction that would prevent airflow Using the appropriate plug provided plug the unit into an electrical outlet Fill out and send in the warranty card included or register online at www dbxpro com Please keep your purchase receipt as final proof of purchase Connect the output of your console or other line level device to the inputs of the DriveRack PA and the desired outputs of the DriveRack PA to the inputs of the selected amplifier Configure the DriveRack PA for your sound system using the dbx Wizard buttons and the Quick Start below or with the use of the separate Quick Start Guide included in the box 2 4 Quick Start For those of you that wish to jump right in the following information has been provided to act as a quick start for optimizing performance of the DriveRack PA Signal Path Block Diagram The following diagram shows the logical and intuitive signal path of the input effects and output of the DriveRack PA Meters Outputs Meters 1 Left Input gt Left High Odd Pueg e SION ouojq o8J8e1S Right Input gt Right High S490 U9ION SAV oluowseHGnNS 4o0sseJduio2 0919 S Jayu dois Aejag gt Left Mid uonoeg 1e o0ssoJ Mic Input
13. 0 These controls individually let you customize the amount of the respective synthesized frequencies to be added in tuning the ultimate bass response of your system to taste For example if the sound is too woofy or growly try turning down the 36Hz 56Hz level If your woofers are bottoming out making a ticking popping sound try turning down the 24Hz 36Hz level You may find that a setting produces fine results in one room but produces too much boominess in another If this occurs adjust the controls as needed e g increase or decrease one or the other of the band levels Experimentation will pay off with smooth full deeply extended bass Remember you are not selecting a frequency You are controlling the overall level of each band IMPORTANT The Subharmonic Synthesis process creates very low frequency audio material that some speakers may not be designed to reproduce Attempting to achieve enhanced dbx by HARMAN E bottom end with these systems may not be possible and may result in over stressing or even damaging your speakers It is generally not a good idea to use this feature without a subwoofer In any case please refer to your mains and subwoofer speakers frequency response specifications and avoid forcing them to reproduce low frequencies that they are not designed to reproduce The Crossover is used to divide the input signal into several frequency bands This allows the user to drive each speaker in its optimum frequ
14. 1 A 1 Factory 28 1 2 Service Contact Info 2 A 2 DriveRack PA Power Up Button 1 3 Warranty ce vri eR 3 FUNGCLIONS RE ninine 28 Power Up Quick Key Options 28 Section 2 Getting Started 4 A 4 Update Firmware 29 2 1 Rear Panel Connections 4 A 5 Preset List Speaker Tunings 29 2 2 Front Panel Connections 5 A 6 Specifications WEREERERRREREREREREEEEREREAMAMS 30 2 3 Installation 5 6 A 7 AUTO EQ Optimization Tips 31 2 4 Quick Start 6 8 Block 32 A 9 System Setup and Gain Structure 33 Section 3 Editing Functions 8 3 1 Basic Navigation Modes 8 3 2 Button Array Overview 8 3 3 Navigating the EQ Section 10 3 4 Navigating the Subharmonic Section 10 3 5 Navigating the Crossover Section 11 3 6 Navigating the AFS Advanced Feedback Suppression Section 11 3 7 Navigating the Comp Limiter Section 12 3 8 Navigating the Delay Section 12 3 9 Navigating the Utility Section 13 3 10 Navigating the Wizard Section 13 Section 4 Operating Functions 14 4 1 Preset Definition 14 4 2 Navigating Factory
15. CONNECTION The cores in the mains lead are coloured in accordance with the following code GREEN and YELLOW Earth BLUE Neutral BROWN Live As colours of the cores in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The core which is coloured green and yellow must be connected to the terminal in the plug marked with the letter E or with the earth symbol or coloured green or green and yellow The core which is coloured blue must be connected to the terminal marked N or coloured black The core which is coloured brown must be connected to the terminal marked L or coloured red This equipment may require the use of a different line cord attachment plug or both depending on the available power source at installation If the attachment plug needs to be changed refer servicing to qualified service personnel who should refer to the table below The green yellow wire shall be connected directly to the units chassis CONDUCTOR WIRE COLOR Normal Alt L LIVE BROWN BLACK N NEUTRAL BLUE WHITE GREEN E EARTH GND YEL GREEN WARNING If the ground is defeated certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between chassis and earth ground Severe injury or death can then result if the chassis and earth ground are touched simultaneously WARNING
16. EU version accepts 220V 240V at frequencies from 50Hz 60Hz USB Connection The USB connector allows users to connect the DriveRack PA to their computer to perform firmware updates using HiQnet System Architect Software via System Architects Firmware Updater You may download HiQnet System Architect at the HiQnet Web site http hiqnet harmanpro com downloads php Outputs 1 6 The output section of the DriveRack PA offers six electronically balanced XLR connectors Inputs 1 2 The input section of the DriveRack PA offers two electronically balanced XLR connectors 4 10dBv Switch This switch changes the level from either 4 or 10dBv Ground Lift Switch The ground lift switch lifts the pin 1 chassis ground of both input XLR connectors p by HARMAN 2 2 Front Panel Connections RTA MIC INPUT let PROFESSIONAL PRODUCTS O 9 C2 DriveRack PA Complete Loudspeaker Management System RTA MIC Input This balanced XLR input is used for the connection of an RTA microphone This allows the PA to measure pink noise that is sent through the speakers The Auto EQ Wizard can then optimize the EQ settings for any room You can also use the full time RTA feature to monitor levels and make adjustments yourself Data Wheel The Data Wheel of the DriveRack PA is used to scroll through the preset menu load presets select parameters and edit parameter values
17. FOR YOUR PROTECTION READ THE FOLLOWING KEEP THESE INSTRUCTIONS HEED ALL WARNINGS FOLLOW ALL INSTRUCTIONS THE APPARATUS SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING LIQUID AND NO OBJECT FILLED WITHI LIQUID SUCH AS VASES SHALL BE PLACED ON THE APPARATUS CLEAN ONLY WITH A DRY CLOTH DO NOT BLOCK ANY OF THEVENTILATION OPENINGS INSTALL IN AC CORDANCE WITH THE MANUFACTURER S INSTRUCTIONS DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADIATORS HEAT REGISTERS STOVES OR OTHER APPARATUS INCLUDING AMPLI FIERS THAT PRODUCE HEAT ONLY USE ATTACHMENTS ACCESSORIES SPECIFIED BY THE MANUFAC TURER UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or third prong are provided for your safety If the provided plug does not fit your out let consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Use only with the cart stand tripod bracket or table specified by the manufac ture or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over Refer al
18. Presets 14 4 3 Editing Factory Presets 15 4 4 Saving 15 Section 5 Detailed Parameters 17 5 1 Graphic EQ ecce 17 5 2 Advanced Feedback Suppression 17 5 3 Subharmonic Synthesizer 19 5 4 550 ne RR 20 5 5 Output Parametric EQ PEQ 20 5 6 5 1 1 21 5 7 Alignment Delay 22 Section 6 Application Guide 24 6 1 Stereo 3 24 6 2 Stereo 3 Way with Mono Sub 25 6 3 Stereo 2 26 6 4 Stereo 2 Way with Mono Sub 27 p by HARMAN Section 1 Introduction Drive your PA to a whole new level of performance with the DriveRack PA Complete Equalization amp Loudspeaker Management System The DriveRack PA from dbx Professional Products represents a complete integration of the key elements that help ensure optimal loudspeaker system management in PA specific applications Capitalizing on the legendary dbx DriveRack technology the DriveRack PA is able to provide its user with top tier pro level loudspeaker management specifications yet still remain appealing to the budget conscious audiophile who requires a tried and true utilitarian workhorse With its all inclusive no compromi
19. active and they are updated according to the current selected mode Fixed or Live Clear Live AU This parameter clears the filters If Clear Live is selected then if invoked the live filters are reset to 0 boost or cut If Clear All is selected then if invoked all of the filters fixed and live are reset to 0 boost or cut When either Clear Live or Clear All is selected the third parameter row displays Clear w Data Wheel If Clear none is selected then nothing is displayed on this row When the user moves to this third row and turns the Data Wheel when Clear Live or Clear All is selected then the filter reset is invoked Mode Live or Fixed When the mode is Fixed the algorithm updates only the fixed filters When the mode is Live the algorithm updates only the live filters In FIXED mode the filters are automatically assigned to a frequency creating feedback thus remaining at that frequency until cleared by the user Fixed mode is used before the performance without any program instrument or vocal input signal In LIVE mode the live filters automatically detect and remove feedback during the performance When all of the live filters have been used they begin to round robin Essentially this means that the first live filter set is replaced where a new feedback is detected and notched out This mode is useful because feedback frequencies may change as the microphone is moved and or as the characteristics of the venue chang
20. ce the preset has been chosen press the Data Wheel to load the preset Self Power Top Speak m m i te bx Section A Appendix M1 Factory Reset In the event that a reset is required the DriveRack PA offers you the option of performing a Soft or Hard reset The Soft Reset resets all operating parameters except user presets The Hard Reset Procedure will reset all presets information back to the factory defaults A2 DriveRack PA Power Up Button Functions All Power Up Functions require a button s to be pressed and held as the unit power is turned on Factory Hard Reset Press and hold the STORE button at power up until the following message appears HARD RESET Yes lt PREV PAGE gt No lt PRESET gt e Pressing the PREV PG button will start a Factory Reset All User Presets will be restored to the Factory Presets all Utility settings will be defaulted and all Security settings will be defaulted e Pressing the PRESET RECALL button will abort the Factory Reset sequence and the unit will reset normally System SOFT Reset e Press and hold the UTILITY button at power up until the following message appears Y SOFT RESET Yes lt PREV PAGE gt No lt PRESET gt e Pressing the PREV PG button will start a System Reset Utility settings will be defaulted e Pressing the PRESET RECALL button will abort the System Rese
21. dbx by HARMAN DriveRack PA Complete Equalization amp Loudspeaker Control System RTA MIC INPUT o dbx PROFESSIONAL PRODUCTS Featuring Cu oum Custom Tunings Professional Audio Equipment IMPORTANT SAFETY INFORMATION RISKOFELECTRICSHOCK DONOTOPEN ATTENTION risquepecHocELECTRIQUE NEPASOUVRIR WARNING torepuce THERISK OF FIREORELECTRIC SHOCK DONOTEXPOSE THIS EQUIPMENT TO RAINOR MOISTURE The symbols shown above are internationally accepted symbols that warn of potential hazards with electrical products The lightning flash with arrowpoint in an equilateral triangle means that there are dangerous voltages present within the unit The exclamation point in an equilateral triangle indicates that it is necessary for the user to refer to the owner s manual These symbols warn that there are no user serviceable parts inside the unit Do not open the unit Do not attempt fo service the unit yourself Refer all servicing to qualified personnel Opening the chassis for any reason will void the manufacturer s warranty Do not get the unit wet If liquid is spilled on the unit shut it off immediately and take it fo a dealer for service Disconnect the unit during storms prevent damage SAFETY INSTRUCTIONS NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A POWER CORD WARNING THIS APPLIANCE SHALL BE CONNECTED TO A MAINS SOCKET OUTLET WITH A PROTECTIVE EARTHING
22. e Type Speech Low Music Medium Music and High Music If Fixed or Live mode is chosen the text will read Type The options will be Speech Music Low Music Medium and Music High These types pertain to the Q sensitivity and algorithm type Values are Speech Bandwidth 1 5 octave and Q 7 25 Music Low Bandwidth 1 10 octave and Q 14 5 Music Medium Bandwidth 1 20 octave and Q 29 Music High Bandwidth 1 80 octave and Q 116 Note To guarantee that feedback is suppressed at lower frequencies the AFS may place wider notch filters at these lower frequencies below 700 Hz by HARMAN Number Fixed 0 12 This will range from values 0 12 The total number of filters will stay at 12 and the number of live filters will be Total Num Filters Num Fixed If this is changed before the filters are reset then the filters will be reset one by one as the number changes For example if the number of Fixed filters goes down then the last fixed filter set will be reset Likewise if the number of Fixed filters goes up and thus the number of live filters goes down then the last live filter set will be reset The Fixed Live filter usage will be indicated at the bottom of each page of the feedback elimination effect indicates an available fixed filter and L indicates an available live filter A blocked out F or L indicates a filter that is set or in use Live Filter Lift On Off This parameter turns the Live Filter Lif
23. e PRESET RECALL button to cancel and return to the currently loaded preset bx by HARMAN UTILITY UTILITY Used to access the Utility menu STORE STORE Used to store any preset changes RTA RTA Press to access the full time RTA module where you can monitor frequency levels This information can help experienced users make fine tune adjustments SETUP SETUP Press and hold to enter the first page of the SYSTEM SETUP WIZARD AUTO EQ AUTO EQ Press and hold to enter the Auto EQ Wizard This Wizard allows the user to automatically tune the speakers to the current room environment with the use of the dbx RTA measurement microphone AFS AFS Press and hold to enter the first page of the AFS Wizard dbx by HARMAN 3 3 Navigating the EQ Section To edit the parameters of the EQs used in a selected preset simply use the following procedure From preset mode press the EQ button to reach the EQ module to be edited Successive presses of the EQ button toggle between the input and the output EQ Navigate through the Pages of the selected EQ section by depressing Next Page or Prev Page successively until arriving at the desired Page 4 PREV PAGE NEXT PAGE GEQ On off Frequency The EQ button Flatten Restore Gain 12dB to12dB toggles through the EQs used in each channel of PEQ On Off the selected Q 0n Band 1 Freq Band 2 Freq Band 3 Freq raset qnenu Flatten Restore Gain 12dB to12dB Gain 12dB to12dB
24. e factory preset name When you load a user preset a USER icon appears above the preset name n by HARMAN 4 3 Editing Factory Presets To edit the currently loaded factory preset press a module s button COMP LIMITER for example then use the PREV PG and NEXT PG buttons to move through the pages within the module Turn the Data Wheel to edit parameter values The following illustration shows an example of the Comp module in edit mode Hn Be COMP THR 5 30 12 5 Compressor Bou Cie Easa OFF Note that the arrow indicates the currently selected parameter for editing To select parameters to edit from the current page simply press the Data Wheel until the arrow is pointing to the parameter that you wish to edit 4 4 Saving Presets Once you are satisfied with the changes that have been made to a factory or user preset the DriveRack PA allows you to save these changes as a custom USER preset Press the STORE button the display will appear as follows BOCK VENUE DATA SELECTS CHAR PREUHESTPG LEFT RIGHT PRESS STORE TO BDUBHCE e Rotating the Data Wheel will change characters in the currently selected position e Pressing the Data Wheel will toggle between upper and lowercase letters numbers or symbols e Use the PREV PG and NEXT PG button to move character positions e Once the desired title has been written press the STORE button again and the display will now appear something like t
25. ect DriveRack PA New firmware update links will be posted when available A 5 Preset List Speaker Tunings For the latest lists of presets and supported speaker tunings visit the Products page at www dbxpro com dbx by HARMAN EE A 6 Specifications ANALOG INPUTS Number of Inputs Connectors Type Impedance Max Input Line Level Input CMRR RTA Mic Phantom Voltage RTA Mic EIN ANALOG OUTPUTS Number of Outputs Connectors Type Impedance Max Output Level CMRR Alignment Delay A D PERFORMANCE Type Dynamic Range Type IV dynamic range Sample Rate D A PERFORMANCE Dynamic Range Sample Rate SYSTEM PERFORMANCE Dynamic Range THD N Frequency Response Interchannel Crosstalk Crosstalk input to output POWER SUPPLY Operating Voltage Power Requirements PHYSICAL Weight Dimensions 2 Line inputs 1 RTA Mic input 2 Female XLR line inputs 1 XLR RTA Mic input Electronically balanced RF filtered gt 40 kQ 20 dBu gt 45 dB 15 VDC lt 117 dBu 22 Hz 22 kHz 150 Q 6 Line outputs Male XLR Electronically balanced RF filtered 120 Q gt 20 dBu gt 45 dB 10ms channel 60ms total dbx Type IV conversion system 110 dB A weighted gt 107 dB unweighted 123 dB with transient material A weighted 22 kHz BW 121 dB with transient material unweighted 22 kHz BW 115 dB typical with preset material A weighted 22 kHz BW 48 kHz
26. ency range and send each output separately for more efficient use of amplifier power The DriveRack PA Crossover can be configured as a 2x2 2x3 2x4 2x5 or 2x6 The High frequency output is created using a High Pass filter The Mid and Low outputs are created using Band Pass filters consisting of Low Pass and High Pass filters When editing Crossover parameters the frequency band is indicated by the highlighted H M or L in the top left corner of the LCD display The High Pass or Low Pass filter being edited is indicated by the highlighted edge in the graphics area For each Low Pass filter there are two parameters Frequency Adjusts the frequency of the Low Pass filter from 20 to 20KHz Type Selects the filter type Selections are BW 6 12 18 24 for a Butterworth type filter with a slope of 6 12 18 or 24 dB Octave and LR12 24 for Linkwitz Riley filter type with slope of 12 or 24 dB Octave For each High Pass filter there are three parameters and they are as follows Frequency Adjusts the frequency of the High Pass filter from 20 to 20KHz Type Selects the filter type Selections are BW 6 12 18 24 for a Butterworth type filter with a slope of 6 12 18 or 24 dB Octave and LR12 24 for Linkwitz Riley filter type with slope of 12 or 24 dB Octave Gain Adjust the crossover output level for the selected output from 60 to plus 20 dB 5 5 Output Parametric EQ PEQ In addition to the graphic EQ options within the signal path the D
27. he console is clipping back the output gain down slightly until the clip indicator turns off Run this signal through the DriveRack PA and into the amplifiers with the crossovers and output gain section in the DriveRack PA set for your particular speakers Make sure that the output limiters are turned off Run this signal into the amplifiers and turn up the input dbx by HARMAN E attenuators until the amplifier clip indicator begins to turn on Turn the attenuators down slightly so the clip indicator no longer is on You have just maximized the gain through your system This amplifier setting should give you maximum gain without clipping another way to say this is that when the output of your console is clipping you will also be at the clip point of your amplifiers Once you have found the clip point of your amplifiers you can mark this position and turn the amplifiers back up to the point where they are clipping You can now use the output limiters in the DriveRack PA to protect the amplifier from clipping no matter what you do at the console With the amplifiers clipping now go to the Limiter page of the DriveRack PA and turn the limiter for each output band on Make sure that the threshold is all the way up to 20dB Now slowly reduce the threshold until the clip indicator of the amplifier turns off You have successfully set the output limiter up and the amplifier will not be able to go into clipping no matter what the input is You sho
28. his STORE ROCK Replacing E 5j Setur PRESS STORE TO BDUDHCE e Rotate the Data Wheel to select the user preset number to be replaced Press the STORE button again and the existing preset will be replaced with the new preset dbx by HARMAN EE The DriveRack PA will store up to 25 user presets in addition to the 25 factory presets Note Factory presets cannot be over written When storing changes to a preset you must replace an existing User preset EU by HARMAN Section 5 Detailed Parameters The DriveRack PA offers complete editing flexibility by offering in depth control over every parameter within each effect module The following section will provide you with descriptions and explanations of parameters within the DriveRack PA 5 1 Graphic EQ The DriveRack 5 Graphic EQ section may be configured as a Dual Mono or linkable 28 band graphic EQ EQ On Off Turns the GEQ on and off Flatten Restore This parameter either flattens the GEQ or restores the GEQ to the last setting before flattening The DriveRack PA allows you to leave the EQ edit window and return without losing the edited EQ settings Frequency F 31 5Hz to 16 0kHz This parameter allows you to select any one of the 28 available frequencies Gain G 12 to 12 dB This parameter allows you to adjust the level of any one of the 28 bands of the GEQ in 5 dB increments 5 2 Advanced Feedback Suppression The DriveRack PA
29. igning the gain of each device so that they all clip at the same point and the noise floor of the entire system is at its absolute minimum Quite often PA systems are setup with the amplifier input controls turned all the way up in the incorrect assumption that this is the only way to get the maximum output level Amplifiers are fixed gain devices turning down the amplifier input attenuators does not change the potential output of the amplifier it only requires more input voltage to get full output power Many amplifiers will clip with an input level greater than 6 dBu when the input attenuators are turned all the way up Most mixing consoles can deliver over 18 dBu of output level before clipping This means that with your amps tuned all the way up you are sacrificing 12 dB of headroom resulting in poorer noise performance and the potential of system clipping By adjusting the amplifier controls properly you can maximize your system performance A way to set up your amplifiers for maximum gain structure is to use the clip indicators of the console and amplifiers themselves Disconnect the output of the amplifier from the speakers Run a continuous signal pink noise or sine waves through your console Turn up the output of the console until it begins clipping If there is no clip indicator on the console then use the output meters most reputable console manufacturers use red LEDs at the top of the meters to show the onset of clipping Once t
30. l servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped POWER ON OFF SWITCH If the equipment has a Power switch the Power switch used in this piece of equipment DOES NOT break the connection from the mains MAINS DISCONNECT The plug shall remain readily operable For rack mount or installation where plug is not accessible an all pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated into the electrical installation of the rack or building FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE FUSE RECEP TACLE Replace fuse with same type and rating only MULTIPLE INPUT VOLTAGE This equipment may require the use of a different line cord attachment plug or both depending on the available power source at installation Connect this equipment only to the power source indicated on the equipment rear panel To reduce the risk of fire or electric shock refer servic ing to qualified service personnel or equivalent If connected to 240V supply a suitable CSA UL certified power cord shall be used for this supply IMPORTANT SAFETY INFORMATION ELECTROMAGNETIC COMPATIBILITY This device complies with part 15 of the FCC Rules and the P
31. me From this point the DriveRack PA gives you the option of entering subsequent levels of operation that are dedicated to preset editing The Utility menu mode is accessed via the UTILITY button and is not part of a single preset 4 2 Navigating Factory Presets From the factory the DriveRack PA is shipped with 25 factory presets that utilize carefully constructed routing configurations that have been designed to accommodate virtually any sound reinforcement application The factory presets offer a clear and concise explanatory title to help get you up and running in a timely manner These presets can also be used as templates or starting points for the user to create custom presets Selecting Presets The quickest way to get up and running with the DriveRack PA is to use one of the factory presets that are available in the box To select a preset press and hold the PRESET RECALL button Turn the Data Wheel to scroll through the various presets As each factory preset is selected the display will clearly indicate the title that is directly related to a specific application Press the Data Wheel to load the selected preset or press the PRESET RECALL button to cancel The display will appear something like this HEHE ry H Ns OF HE E maon D I T 1 I rl LOLS H When you load a factory preset a FACT icon will appear above th
32. n the currently selected page High Pass Freq Out to 20 kHz Type BW6 24 LR12 24 Freq Out to 20 kHz Type BW6 24 LR12 24 Gain Inf to 20dB Gain Inf to 20dB High 3 6 Navigating the AFS Advanced Feedback Suppression Section From preset mode press the FEEDBACK button Pressing the Data Wheel will select the parameter to be edited FEEDBACK lt PREV PG NEXT PG gt FEEDBACK AFS On Off Mode Fixed Live Live filter Lift On Off c3 i AFS Clear Type Speech Low Med and High Lift After 0 60 Number of Fixed filters 0 12 The PREV PG and NEXT PG ADAE Successive presses of the Data Wheel will toggle between the pages of the selected module NU parameters within the currently selected page dbx by HARMAN 3 7 Navigating the Comp Limiter Section From preset mode press the COMP LIMITER button to move to either the Compressor or Limiter module s Successive presses of the COMP LIMITER button will toggle between the input and output modules Navigate through the Pages of the Compressor module by pressing the Next Page or Prev Page buttons successively until you arrive at the desired Page lt A PREV PG NEXT PG P COMP LIMITER COMP LIMITER Comp On Off Threshold 40 20dB COMP Over Easy Off 1 10 Ratio 1 1 to ocInf 1 Gain 20 to 20dB The COMP LIMITER button toggles through the Compressor or Limiter modules COMP LIMITER Limiter On Off
33. riveRack PA also offers a 2 band low and mid and a 3 band high parametric EQ after the crossover section The parameters for the PEQ are as follows and are user adjustable PEQ On Off Turns the PEQ band on and off by HARMAN Flatten Restore This parameter either flattens the PEQ or restores the PEQ to its original shape Type This parameter selects the PEQ type Types include 1 Bell All parametrics are bell shaped 2 HShelf One shelf is High while all others are bell 3 LShelf One shelf is Low while all others are bell and 4 LHShelf One shelf is High and one is Low and the others are bell Band 1 3 Frequency 20Hz to 20kHz Selects the frequency of the selected band of the parametric EQ Level 1 3 12dB to 12dB Sets the boost or cut level of the selected parametric EQ Q 1 3 0 20 to 16 dB Sets the Q or Bandwidth of the selected Parametric EQ 5 6 Compressor Limiter The DriveRack PA also offers Compression and Limiter modules The Compressor is a full bandwidth Stereo Compressor located prior to the Crossover The Compressor is the perfect tool for tightening uneven signal sources such as vocals and guitars The Limiters are located on each stereo output channel and have been strategically placed for speaker and amplifier protection Note that Compressor Limiter threshold metering can be observed on page two of the Utility section The parameters for the Compressor Limiter are as follows and are user adjus
34. roduct Specifications noted on the Declaration of Conformity Operation is subject to the following two conditions e this device may not cause harmful interference and this device must accept any interference received including interfer ence that may cause undesired operation Operation of this unit within significant electromagnetic fields should be avoided e use only shielded interconnecting cables U K MAINS PLUG WARNING A molded mains plug that has been cut off from the cord is unsafe Discard the mains plug at a suitable disposal facility NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED OR CUT MAINS PLUG INTO A 13 AMP POWER SOCKET Do not use the mains plug without the fuse cover in place Replacement fuse covers can be obtained from your local retailer Replacement fuses are 13 amps and MUST be ASTA approved to BS1362 If you want to dispose this product do not mix it with general household waste There is a separate collection system for used electronic products in accordance with legislation that requires proper treatment recovery and recycling mmm Private household in the 25 member states of the EU in Switzerland and Norway may return their used electronic products free of charge to designated collection facilities or to a retailer if you purchase a similar new one For Countries not mentioned above please contact your local authorities for a correct method of disposal By doing
35. se design the DriveRack PA has been systematically developed and designed to grow with your system needs for years to come 11 Defining the DriveRack PA The dbx DriveRack PA is the most effective way to manage all aspects of Loudspeaker management for Public Address system applications The DriveRack PA essentially becomes the only device that you will need between your mixer and your power amps The following are just some of the features of the DriveRack PA DriveRack PA features Setup Wizard Steps Through Speaker and Amp Selection and Levels Auto Level Wizard Balances Your System Auto EQ Wizard with 28 Band RTA Tunes Your System For The Venue AFS Wizard Helps Eliminate Feedback Stereo Feedback Elimination with 12 feedback notch filters dbx 120A Sub harmonic Synthesizer Classic dbx Input Compression JBL Speaker and Crown Power Amp Tunings included USB Firmware and Speaker Tunings Field Updatable With Harman HiQnet System Architect Full time RTA function Front Panel Output Mutes Pink Noise Generator used with Auto EQ and Auto Level Wizards Linked Stereo DSP Processing for ease of use 24 Bit ADC 24 Bit DAC gt 113 dB Dynamic Range 2 Channel XLR Input and 6 Channel XLR Output 2x2 2x3 2x4 2x5 2x6 Crossover Configurations Dual 28 band Graphic EQ Linked or Dual Mono Stereo Multi band Parametric EQ Stereo Output Limiters Output Alignment Delay Power on off Mute Circuitry Front panel RTA M XLR inp
36. so you will ensure that your disposed product undergoes the necessary treatment recovery and recycling and thus prevent potential negative effects on the environment and human health DECLARATION OF CONFORMITY dbx Professional Products 8760 S Sandy Parkway Sandy Utah 84070 USA Manufacturer s Name Manufacturer s Address declares that the product Product name dbx DriveRack PA Note Product name may be suffixed by the EU Product option None conforms to the following Product Specifications Safety IEC 60065 01 Amd 1 EMC EN 55022 2006 EN 55024 1998 FCC Part 15 Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 2006 95 EC EMC Directive 2004 108 EC RoHS Directive 2002 95 EC WEEE Directive 2002 96 With regard to Directive 2005 32 EC and EC Regulation 1275 2008 of 17 December 2008 this product is designed produced and classified as Professional Audio Equipment and thus is exempt from this Directive Vice President of Engineering 8760 S Sandy Parkway Sandy Utah 84070 USA Date March 19 2010 European Contact Your local dbx Sales and Service Office or Harman Music Group 8760 South Sandy Parkway Sandy Utah 84070 USA Ph 801 566 8800 Fax 801 568 7583 Section 1 Introduction 1 Section A 28 1 1 Defining the DriveRack
37. t on and off Lift After 5 sec to 60 min This parameter allows the user to setup the AFS module so that the Live filters will automatically be removed or set to flat after a set time as indicated by the Lift After parameter It ranges from 5 seconds to 60 minutes This feature is useful if the microphone being used is moved or the characteristics of the venue change over time As example a filter placed minutes ago will not be presently preventing feedback This feature removes unnecessary filters from the spectrum to increase sonic quality If the feedback is still there after the filter is removed it will catch it and notch it out the same 5 3 Subharmonic Synthesizer The Subharmonic Synthesizer module has been specifically optimized to enhance Bass audio material for use in a variety of professional applications including nightclub and dance DJ mixing theatre and film sound music recording live music performance and broadcasting The Subharmonic Synthesizer module s two separate bands of subharmonic synthesis provide the best combination of smoothness and control and the independent low frequency boost circuit is designed to get the most out of high performance low frequency speaker systems Sub Harmonic Synth On Off Turns the Subharmonic Synth module on and off Sub Harmonics Synth 0 to 100 This parameter sets the overall level of the Subharmonic Synthesizer 24 36Hz and 36 56Hz Subharmonic Synthesis Level 0 to 10
38. t sequence and the unit will reset normally A 3 Power Up Quick Key Options The DriveRackPA offers several Quick Key options for initial power up and are as follow Change Initial Preset Number e change the initial power up preset number Press and hold the PRESET RECALL button at power up until the following message appears EE by HARMAN Use Wheel to Change Restart Preset Number Turning the Data Wheel will select the preset you wish to load at initial power up Press the PRESET RECALL button again when the selection is complete Normal startup will continue System Lock Out e Press and hold the RTA button at power up until one of the following messages appears System Unlocked All user input will be accepted or System Locked No user input will be accepted or System Locked with AFS Filter Clear Rotate the Data Wheel to select either Lock Unlock or Filter Unlocked Pressing PREV PG will unlock the system if it were locked or it will lock the system if it were unlocked If you wish to leave the system locked with the exception of being able to clear the feedback filters follow the same procedure on power up and then rotate the Data Wheel to select the feedback filter unlock feature Pressing any other button will abort the System Lockout sequence and the unit will reset normally A 4 Update Firmware For information on updating the DriveRack PA firmware via USB visit the Products page at www dbxpro com and sel
39. t show evidence of defect provided the product is returned to dbx WITH RETURN AUTHORIZATION from the factory where all parts and labor will be covered up to a period of two years A Return Authorization number must first be obtained from dbx The company shall not be liable for any consequential damage as a result of the product s use in any circuit or assembly 4 dbx reserves the right to make changes in design or make additions to or improvements upon this product without incurring any obligation to install the same additions or improvements on products previously manufactured 5 The foregoing is in lieu of all other warranties expressed or implied and dbx neither assumes nor authorizes any person to assume on its behalf any obligation or liability in connection with the sale of this product In no event shall dbx or its dealers be liable for special or consequential damages or from any delay in the performance of this warranty due to causes beyond their control dbx by HARMAN Section 2 Getting Started C2 2 1 Rear Panel Connections HIGH MID P p e sa russ M A i dx 2 i 2 E E E 6 O O z ra CO OUTPUTS em IEC Power Cord Receptacle The DriveRack PA comes with a power supply that will accept voltages ranging from 100V 120V at frequencies from 50Hz 60Hz An IEC cord is included
40. table Compressor Compressor On Off Turns the Compressor module on and off OverEasy 0 Off to 10 There are ten levels of OverEasy that can be used for the limiters The point when the compressor starts to compress is the knee When the compressor starts to reduce the level of a signal abruptly as it passes over the threshold this is called hard knee compression OverEasy soft knee as it is sometimes called is when the volume of the sound is compressed gradually OverEasy compression starts to compress before the level of the signal reaches the threshold and reaches full compression after the level has gone above the threshold OverEasy compression by its very nature sounds much smoother and more natural and will be used for most applications When it is gentle natural sounding or light compression that you are looking for the compressor offers VariKnee gives you ten levels of OverEasy compression to choose from 1 being almost hard knee and 10 being the most OverEasy This lets you choose the exact knee that is needed for the dynamic effect you are looking for Threshold T 40 to 20dBu Threshold is the signal level at which the unit starts to compress the signal If the level is set to 10 dBu than any signal greater than 10 dBu is compressed while any signal that has dbx by HARMAN EE a level that is lower than 10dBu is left at the same signal level Light compression is where only the lo
41. tion Number Please refer to the Warranty information on the following page which extends to the first end user After expiration of the warranty a reasonable charge will be made for parts labor and packing if you choose to use the factory service facility In all cases you are responsible for transportation charges to the factory dbx will pay return shipping if the unit is still under warranty Use the original packing material if it is available Mark the package with the name of the shipper and with these words in red DELICATE INSTRUMENT FRAGILE Also write the Return Authorization Number RA on the outside of the box in a conspicuous location Insure the package properly Ship prepaid not collect Do not ship parcel post pU by HARMAN This warranty is valid only for the original purchaser and only in the United States 1 The warranty registration card that accompanies this product must be mailed within 30 days after purchase date to validate this warranty You can also register online at www dbxpro com Proof of purchase is considered to be the responsibility of the consumer A copy of the original purchase receipt must be provided for any warranty service 2 dbx warrants this product when bought and used solely within the U S to be free from defects in materials and workmanship under normal use and service 3 dbx liability under this warranty is limited to repairing or at our discretion replacing defective materials tha
42. udest parts of the signal go over the threshold Very heavy compression can be achieved by setting the threshold low enough that almost the entire signal content is over the threshold For most signals the most natural compression is achieved when most of the signal content remains just below the threshold and only the peaks cross the threshold Ratio R 1 0 to Inf 1 Ratio is the amount the unit reduces the signal level of the sound that is above the threshold A 2 1 ratio means that if the incoming signal is 2dB over the threshold the unit will compress the signal and outputs a signal that only goes 1dB over the threshold For light compression choose a lower ratio while a heavy compression requires a higher ratio A setting of Inf 1 makes the compressor act as a limiter Gain G 20 to 20 dB This parameter is used to compensate for the gain lost during compression By using heavy compression on a signal and then boosting the signal with the output gain the user can create a signal that sounds much louder than it actually is Limiter Limiter On Off Turns the Limiter module on and off OverEasy 0 Off to 10 There are ten levels of OverEasy that can be used for the limiters The point when the limiter starts to limit is the knee When the limiter starts to reduce the level of a signal abruptly as it passes over the threshold this is called hard knee limiting OverEasy soft knee as it is sometimes called is when the vol
43. uld now proceed to the next output band and go through the same process If you are using a sine wave to create clipping in your amplifier you should make sure that the sine wave is within the frequency range of the output band that you are working with Once all the limiters are set up you can now turn the amplifiers back down to the gain maximized position The Setup Wizard will automatically set your limiters based on your choice of amplifier Because of component variances within the amplifier circuitry you may need to adjust the limiter settings by a few dB after running the Wizard to ensure that they are set correctly Once all the limiters are set up and the gain is maximized reduce the output of your console and reconnect your speakers Now for the fun part sit back and send your favorite music through the system If your system is not loud enough you may want to consider an amplifier or amplifiers with greater output power Most loudspeaker manufacturers recommend an amplifier that can provide 1 5 to 2 times the rated RMS power of the speaker If this setting is too loud when your speakers are reconnected you can turn down the amplifier input attenuators even more pU by HARMAN dbx by HARMAN dbx by HARMAN 8760 South Sandy Parkway Sandy Utah 84070 Phone 801 568 7660 Fax 801 568 7662 Int l Fax 801 568 7583 Questions or comments Contact us at www dbxpro com Printed in China 18 0483V B
44. ume of the sound is limited gradually OverEasy limiting starts to limit before the level of the signal reaches the threshold and reaches full limiting Threshold T 40 to 20dBu Threshold is the signal level at which the unit starts to limit the signal If the level is set to 10 dBu any signal larger than 10 dBu is limited while any signal that has a level that is lower than 10dBu is left at the same signal level 5 7 Alignment Delay The DriveRack PA offers alignment delay to use for compensating signal delay that occurs due to internal speaker components such as horns mid speakers and subwoofers within speaker cabinets The parameters for the alignment delay are as follows and are user adjustable Delay On Off Turns the Speaker Alignment delay on and off by HARMAN Units Seconds Feet or Meters Selects the unit of measurement for the delay Length Sets the amount of Speaker Alignment delay time Delay times include Seconds 0 00 10 00 ms Feet 0 00 11 3 and Meters 0 00 3 43 Fine adjustments are made in 02 ms increments Coarse adjustments are made in 21 ms increments Press the Data Wheel when length is selected to switch between coarse and fine options dbx by HARMAN Section 6 Application Guide This Application guide section is provided to offer suggested installation applications for the DriveRack9 PA Note that the 25 included application presets represent the extensive flexibility of the Dri
45. ut with phantom power 25 User Programs 25 Factory Programs Full Graphic LCD Display Front Panel Input and Output Meters By including every form of processing necessary to drive the signal from the mixer to the power amp the DriveRack PA allows you to eliminate all other processing devices normally found in large and cumbersome traditional Front of House rack systems of the past The DriveRack PA Loudspeaker Management System includes two balanced XLR inputs as well as six balanced XLR output connectors dbx by HARMAN EE 1 2 Service Contact Info If you require technical support contact dbx Technical Support Be prepared to accurately describe the problem Know the serial number of your device this is printed on a sticker attached to the chassis If you have not already taken the time to fill out your warranty registration card and send it in please do so now You may also register online at www dbxpro com Before you return a product to the factory for service we recommend you refer to the manual Make sure you have correctly followed installation steps and operation procedures For further technical assistance or service please contact our Technical Support Department at 801 568 7660 or visit www dbxpro com If you need to return a product to the factory for service you MUST first contact Technical Support to obtain a Return Authorization Number No returned products will be accepted at the factory without a Return Authoriza
46. veRack units These applications can be used as sample reference guide templates for designing countless audio applications 6 1 Stereo 3 Way Hardware 1 Connect the outputs from the mixer to the inputs of the DriveRack PA 2 Connect the outputs of the DriveRack PA to the selected speaker amplifier 3 Make sure that the mixer and power amps are turned off prior to powering up the DriveRack PA Front Panel Editing 1 From Preset mode select factory preset 26 Stereo 3 Way as a template or use the Wizard to set up the specific preset 2 Once the preset has been chosen press the Data Wheel to load the preset e B o Left Mid Right Mid Left Low Right Low Left High Right High Crown F p Ag Left Mid Left High Right Mid pes High Left Sub Right Sub by HARMAN 6 2 Stereo 3 Way with Mono Sub Hardware 1 Connect the outputs from the mixer to the inputs of the DriveRack PA 2 Connect the outputs of the DriveRack PA to the selected speaker amplifier 3 Make sure that the mixer and power amps are turned off prior to powering up the DriveRack PA Front Panel Editing 1 From Preset mode select factory preset 26 Stereo 3 Way as a template or use the Wizard to set up the specific preset 2 Once the preset has been chosen press the Data Wheel to load the preset
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