Sabine Stereo Equalizer 1802 User's Manual
Contents
1. CONGRATULATIONS You now have the state of the artin feedback control WHAT IS THE FBX FEEDBACK EXTERMINATOR The SabineFBX 1802 automatic feedback controller is a dual channel 18 bit digital audio and 32 bit floating point filtering device Controlled by a digital signal processor DSP the FBX automati cally finds and eliminates feedback in sound Rem It does it quicker and with less tonal degrada tion than any other method WHAT DOES IT DO The FBX 1802 quickly senses feedbackina sound system and determines its pitch It then assigns one of its very narrow digital notch filters to the resonating frequency and eliminates the feedback in less than a second In almost every case the FBX automatically controls feedback faster and with less sound field distortion than the best graphic or parametric equalizer HOW DOES IT WORK The FBX utilizes nine narrow band independent digital notch filters per channel any of which may be Fixed or Dynamic The user selects the number of Fixed versus Dynamic filters The Fixed filters enable increased gain before feedback The FBX sets the Fixed filters to control the strongest feedback frequencies The Fixed filters remain set on the strongest resonating frequencies until the user resets the FBX The Dynamic filters control intermit tent feedback that may develop or change during a program They are automatically reassigned new frequencies as feedback occurs Total feedback control is2. The level that turns the noise gate on and off is called the threshold If the level coming into the gate is greater than the threshold the noise gate opens and the mic is turned on CUP LEVEL ADJUST LEVEL If it is less than the threshold the noise gate closes and the CHAN A CHAN B BYPASS 2 aie 7 mic is turned off CUNE o ae You can adjust your 1802 to five different threshold NO ne O 120B O levels or turn it off Factory default is off You may only set T ip up one channel at a time To enable the noise gate and select a the threshold power down the 1802 Hold in the LOCK FIXED ROEE button for the channel you are setting and power up the 1802 Nolse Gate O 2408 When you let go of the button the clip level LEDs will light in Plager pattes F i sequence Select the threshold level by pressing the LOCK ee pes lOO o agoB FIXED button again when the clip LED lights at the corre cl LEDs are off O 7208 sponding level See illustration at right To disable the noise gate press the LOCK FIXED button when no clip LEDs are lighted Repeat this procedure for the other channel When the noise gate is enabled the clip light corresponding to the selected threshold level flashes on power up if no lights flash on power up the noise gate is not enabled The 1802 s noise gate will not become active until after you ve set all fixed filters and one dynamic filter if the 1802 is configured for any The noise gate also become
3. 23 dBV sine wave at 1 KHz Dynamic Range gt 100 dB POWER SUPPLY Dual 20 VAC 50 60 Hz availablein 100 V 120 V 220 V or 240 V 22 Watts max MEMORY BATTERY LIFE 10 years DIMENSIONS 1 U rack mount 19x 1 75x 7 5ins nominal rack mountable 48 3 x 4 5 x 16 5 cms nominal rack mountable WEIGHT 5 80 Ibs 2 5 kg nominal OPTIONS Input transformer option Output transformer option Note Inputs may be balanced or unbalanced For maximum output capability outputs must be balanced XLR or TRS If either side of an output is grounded the peak output and dynamic range will be reduced by 6 dB If a grounded output cannot be avoided use a balanced to unbalanced line transformer or the output transformer option Tests performed using an Audio Precision System One model 322 or equal SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Page 5 CautionsandWarranties and Warranties Section Twelve Cautions amp Warranty Warning This equipment must be earthed Caution Risk of electric shock Do not open Caution Shock hazard Do not remove covers No user serviceable parts inside Refer servicing to qualified service personnel Warning To reduce the risk of fire or electric shock do not expose this product to rain or moisture Attention Cet appareil doit tre reli la terre Attention Risque de choc lectrique ne pas ouvrir Attention Risque de choc ne pas oter les capots Aucune pi ce accessib
4. 2 German Patent No 69118486 0 and U K Patent No 0486679 Other patents pending REAL Q and REAL Q2 are protected by U S Patent No 5 506 910 Other patents pending Graphi Q POWER Q REAL Q and REAL Q2 are trademarks of Sabine Inc Copyright 2001 All rights reserved Limited Warranty THIS LIMITED WARRANTY VALID ONLY WHEN PURCHASED AND REGISTERED IN THE UNITED STATES OR CANADA ALL EXPORTED PRODUCTS ARE SUBJECT TO WARRANTY AND SERVICES TO BE SPECIFIED AND PROVIDED BY THE AUTHORIZED DISTRIBUTOR FOR EACH COUNTRY Ces clauses de garantie ne sont vaiables qu aux Etats Unis et au Canada Dans tous les autres pays les clauses de garantie et de maintenance sont fixees par le distributeur national et assuree par lui selon la legislation en vigueur Diese Garantie ist nur in den USA and Kanada gultig Alle Export Produkte sind der Garantie und dem Service des Importeurs des jewelligen Landes untervorfen Esta garantia es valida solamente cuando el producto es comprado en E U continentales o en Canada Todos los productos que sean comprados en el extranjero estan sujetos a las garantias y servicio que cada distribuidor autorizado determine y otrezca en los diferentes paises ONE YEAR LIMITED WARRANTY REMEDY SABINE INC SABINE warrants this product to be free from defects in material and workmanship for a period of one 1 year from date of purchase PROVIDED however that this limited warranty is extended only to the origin
5. feedback without changing the tonal quality of your program Important note Set up only one channel at a time Do not attempt to ring out both channels of your sound system for feedback simultaneously 1 Place the speakers and microphones in the positions where they will be used during the program Avoid placing micro phones directly in front of speakers 2 Place the FBX both channels in BYPASS MODE 3 Set the master volumes to their lowest positions Turn on the mixer then the FBX then any other accessories and finally the power amp 4 If you are using a graphic EQ adjust only for the desired tonal qualities but DO NOT NOTCH FOR FEEDBACK 5 Adjust the balance for each mixer channel 6 Set the sound system s master volume to minimum 7 Turn the FBX CLIP LEVEL ADJUST clockwise to the two o clock position 8 Press RESET for 4 seconds to clear out filters set previously 9 You may set the total number of filters you wish to activate factory default is 9 filters per channel by holding down the SET TOTAL NO button for 4 seconds The LEDs will blink 4 times and then go out Release the SET TOTAL NO button The LEDs will begin to light in sequence When the LED corresponding to the desired number of filters lights press the SET TOTAL NO button Your selection is complete Page 2 10 Now set the number of Fixed filters you need factory default is 6 Fixed and 3 Dynamic per channel Depress the SET FIXED button
6. for 4 seconds The total number of enabled filters set in step 9 will blink 4 times and go out Release the SET FIXED button and the LEDs will begin to light in sequence When the LED corresponding to the desired number of Fixed filters lights press the SET FIXED button Your selection is complete 11 Put the FBX in ACTIVE mode for the channel you wish to set 12 Slowly raise the sound system s master volume for the channel being set until feedback occurs The FBX should quickly remove the feedback The first FILTER LED will then blink to indicate a filter has been set 13 Repeat the procedure described in line 12 until all of the FIXED FILTERS and one of the DYNAMIC FILTERS are set 14 Channels A and B must be set individually and separately To set the remaining channel repeat this SYSTEM INITIALIZING PROCEDURE 15 Now tower the master volume slightly so that the system is not on the verge of another feedback point This is the maximum volume level that the FBX will be able to provide Higher levels will cause uncontrollable feedback 16 Finally during sound check adjust the CLIP LEVEL ADJUST so that the red CLIP LED blinks intermittently as you would adjust the recording level of a tape recorder The unit will clip and distort the program if the CLIP LEVEL ADJUST is set too high If it is set too low the signal to noise ratio will degrade and the system may hiss The best adjustment occurs when the clip levels of the FBX and
7. is set RESET Press for 4 seconds to reset all filters BACK PANEL To set the total number of filters depress for 4 seconds and then release the button The LEDs will begin to light in sequence When the LED corresponding to the de sired number of filters lights press the button to register your selection SET FIXED To set Fixed filters hold down for 4 seconds and then release the but ton The LEDs will begin to light in sequence When the LED corre sponding to the desired number of Fixed filters press the button to register your selection FIFTHOCTAVE Press the button at any time to select wider filters for any new fil ters to be set Itis possible to have both 1 5 and 1 10 octave filters ac tive in one channel simultaneously When the LOCK FIXED buttonis pressed its LED will light to indi cate that the FBX is in LOCK FIXED mode LOCK FIXED mode can be activated at any time after system set up and will stay on until the button is pressed again and the LED turns off POWER SWITCH The ON OFF switch is a two posi tion rocker type switch The LEDs corresponding to all active filters will blink FILTER STAGE ACTIVITY When one of the unit s filters is activated the corresponding LED lights Ablinking LED indicates the filter that was most recently acti vated INPUT O OG CHANNE R fone ONBAL BAY A CANNEL A A POMER gt Babine WNBA BA on aa ans BEI ce I ce e rags eu al
8. now achieved with less program degradation than with any other method PROBLEMS WITH GRAPHIC EQUALIZERS Until the introduction of theFBX parametric and graphic equaliz ers were the only practical devices available for controlling feedback in live performances The disadvantage is that manual operation of both parametric and graphic EQs is too slow A sound technician must be on duty during the entire program ready to jump at the first sign of feedback Once feedback occurs the technician must determine which slider controls the feedback FRX1SO2 OPERATING DUAL FEEDBACK EXTERMINATOR GUIDE frequency and how much attenuation is necessary This process takes too much time and is prone to error There is a common misconception that 1 3 octave EQ filters are only 1 3 of an octave wide Actually most are about one full octave wide However they are placed on 1 3 octave center points hence their name The FBX 1802has the flexibility to place the center point of its feedback filters within one Hertz of the actual feedback 2 3 4 y frequency so the filters only need to be 1 10 octave wide In fact all nine FBX filters cause much less sound field distortion than two 1 3 octave EQ filters WHO NEEDS THE FBX Virtually every sound system will be improved with the FBX Small bands that do not have sound technicians can now increase their monitor volumes so that they can hear themselves clearly and with full fidelity witho
9. to 24dBV Higher levels can be accommodated on special request Contact Sabine for more information Page 3 Typical FBX Set Up Mains m HE ax 0000 SIMPLIFIED BLOCK DIAGRAM DSP ADC Feedback a ee DAC Center a ee Depth Control MIXER eee w e e e e o O M M Clip Level Clip Leve Adjustment fF TARA Adjustment Filter 1 Filter 2 Filter 8 Filter 9 1 5 or 1 10 Octave Filters V 7 Bypass Switch i m T al os a ga XLR TRS Shows one channel only TRS XLR INPUT OUTPUT ANSWERS TO THE MOST FREQUENTLY ASKED QUESTIONS Q Can place the FBX in the mixer s EQ loop A The last filter to be automatically updated blinks During A Yes normal operation the blinking will move from filter to filter as they are reset This gives the user a visual Q Can place the unit in the mixer effects loop confirmation that the unit is responding to new feedback A Avoid this configuration if possible You can configure and is functioning properly the system this way only if each effects send of each mixer channel is set so that all of the signal is routed Q Sometimes during the initial set up the first filter LED completely through the effects loop You cannot mix dry will blink before any feedback has been introduced into signal with effects signal and still control feedback the system Why A The FBX will set a filter if the system has a hum Check
10. 02 offers a choice between greater effectiveness and reliability between feedback and music greatly Anew LOCK FIXED button freezes the Fixed filters created during set up The filters still eliminate feedback but they will not get any deeper than the original it s designed even more efficiently than The user can set the total number of previous models There are fewer parts filters desired for each application using the new SET TOTAL NO button standard 1 10 octave filters or 1 5 octave filters The narrower 1 10 octave filters are most useful for music applications such as concerts The wider 1 5 octave filters are recom mended for spoken word applications such as lecture halls PA systems or teleconferencing Sabine INSTRUCTIONS FOR OPERATION HOW TO USE THE FBX FEEDBACK EXTERMINATOR AUTOMATIC FEEDBACK CONTROLLER The FBX automatic feedback controller will improve any sound reinforcement system even if it is used incorrectly By following these simple suggestions you will be assured of the most benefit from your FBX and sound system The instructions presume that you are familiar with the fundamentals of sound reinforcement If any of the terms are not clear or if the system does not perform as expected contact your Sabine dealer for further information WHERE TO PLACE THE FBX IN YOUR SOUND SYSTEM Place the FBX anywhere in the sound system that a graphic equalizer might be used to control feedback
11. AY CAUSE A PERMANENT HEARING LOSS INDIVIDUALS VARY CONSIDERABLY IN SUSCEPTIBILITY TO NOISE INDUCED HEARING LOSS BUT NEARLY EVERYONE WILL LOSE SOME HEARING IF EXPOSED TO SUFFICIENTLY INTENSE NOISE FOR A SUFFICIENT TIME THE U S GOVERNMENT S OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION OSHA HAS SPECIFIED THE FOLLOWING PERMISSIBLE NOISE LEVEL EXPOSURES DURATION DAY IN HOURS SOUND LEVEL IN dBA SLOW RESPONSE 1 2 1 2 1 4 or less 115 ACCORDING TO OSHA ANY EXPOSURE IN EXCESS OF THE ABOVE PERMISSIBLE LIMITS COULD RESULT IN HEARING LOSS EAR PLUGS OR PROTECTORS IN THE EAR CANALS OR OVER THE EARS MUST BE WORN WHEN OPERATING THIS DEVICE IN ORDER TO PREVENT A PERMANENT HEARING LOSS IF EXPOSURE IS IN EXCESS OF THE LIMITS AS SET FORTH ABOVE TO ENSURE AGAINST POTENTIALLY DANGEROUS EXPOSURE TO HIGH SOUND PRESSURE LEVELS IT IS RECOMMENDED THAT ALL PERSONS EXPOSED TO EQUIPMENT CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS SUCH AS THIS DEVICE BE PROTECTED BY HEARING PROTECTORS WHILE THIS UNIT IS IN OPERATION CAUTION N This apparatus contains a lithium battery Replacement shall be made by qualified service personnel only Call Sabine at 386 418 2000 or consult an authorized Sabine agent FBX and FBX Feedback Exterminator are registered trademarks of Sabine Inc and are the brand names of its line of automatic feedback controllers Covered by U S Patent No 5 245 665 Australian Patent No 653 736 Canadian Patent No 2 066 624
12. Q The LEDs on the CLIP LEVEL ADJUST do not light The for bad grounds Turn the CLIP LEVEL all the way unit will not catch feedback Why clockwise reset the filters and try again A The unit is not in the signal path Check the connections Be sure that the program is interrupted when the input Q Why does the FBX cause a noticeable hum is disconnected from the back of the unit A It hums if the main power voltage drops significantly below 10 of the specified voltage Check the A C Q Can mix Balanced and Unbalanced inputs and out power mains puts A Yes Unbalanced input and balanced output is compat Q Why does my system sound thin and muffled ible Balanced input and unbalanced output may result A Place the FBX in BYPASS MODE If the system still in a 6 dB loss of dynamic range and Bypass may not sounds thin your problem is probably with improper use function correctly of a graphic EQ If the problem is really the FBX reinitialize the system Also be sure that the unit s CLIP Q Why does one of the FILTER ACTIVITY LEDs blink LEVEL is properly adjusted Page 4 AUDIO PRECISION 1802FRES AMPL dBV vs FREQ Hz 16 FEB 94 16 19 46 0 0 ee a 1 000 2 000 a a FREQUENCY RESPONSE 4 000 E 5000 H 3 000 6 000 i FBX 1802 1 10 Octave Filter Vs 1 3 Octave Graphic Equalizer Filter 12 dB depth Log Scal
13. RODUCT AND NO OTHER STATEMENT REPRESENTATION WARRANTY OR AGREEMENT BY ANY PERSON SHALL BE VALID OR BINDING UPON SABINE In the event of any modification or disclaimer of express or implied warranties or any limitation of remedies contained herein conflicts with applicable law then such modification disclaimer or limitation as the case may be shall be deemed to be modified to the extent necessary to comply with such law Your remedies for breach of these warranties are limited to those remedies provided herein and Sabine gives this limited warranty only with respect to equipment purchased in the United States of America INSTRUCTIONS WARRANTY REGISTRATION CARD 1 Mail the completed WARRANTY REGISTRATION CARD to SABINE INC 13301 HIGHWAY 441 ALACHUA FL 32615 8544 a Keep the PROOF OF PURCHASE In the event warranty service is required during the warranty period you will need this document There will be no identification card issued by Sabine Inc 2 IMPORTANCE OF WARRANTY REGISTRATION CARDS AND NOTIFICATION OF CHANGES OF ADDRESS a Completion and mailing of WARRANTY REGISTRATION CARDS Should notification become necessary for any condition that may require correction the REGISTRATION CARD will help ensure that you are contacted and properly notified b Notice of address changes If you move from the address shown on the WARRANTY REGISTRATION CARD you should notify Sabine of the change of address so as to facilitate your r
14. The most common place is between the output of the mixer and the input of a power amp In this position the FBX can sense and eliminate feedback occurring in any channel of the mixer The FBX can also be used on a mixer insert GRAPHIC EQUALIZERS The FBX is designed to replace the graphic equalizer s function for eliminating feedback In many applications such as churches auditoriums or small acoustic ensembles the mixing board provides all the tonal control that is necessary The FBX can replace the graphic EQ in some applications lf an equalizer is desired place the FBX after the EQ in the signal path Use the EQ s controls to shape the tonal response of the sound system but DO NOT NOTCH FOR FEEDBACK FIXED Vs DYNAMIC FILTERS The FBX has two types of filters FIXED and DYNAMIC FIXED FILTERS retain their frequency center points until the unit is reset by the user The system s gain before feedback is limited by the number of FIXED FILTERS i e increasing the number of FIXED FILTERS increases the system s gain before feedback The FBX s DYNAMIC FILTERS control intermittent feedback that comes and goes throughout the program They are continually reset automati cally to different frequencies as new feedback occurs during the program For most applications the optimal setting is six FIXED and three DYNAMIC FILTERS per channel SYSTEM INITIALIZING PROCEDURE Follow these steps to obtain the maximum gain before
15. al retail purchaser and is subject to the conditions exclusions and limitations hereinafter set forth CONDITIONS EXCLUSIONS AND LIMITATIONS OF LIMITED WARRANTIES These limited warranties shall be void and of no effect if a The first purchase of the product is for the purpose of resale or b The original retail purchase is not made from an AUTHORIZED SABINE DEALER or c The product has been damaged by accident or unreasonable use neglect improper service or maintenance or other causes not arising out of defects in material or workmanship or d The serial number affixed to the product is altered defaced or removed or e The power supply grounding pin is removed or otherwise defeated In the event of a defect in material and or workmanship covered by this limited warranty Sabine will repair the defect in material or workmanship or replace the product at Sabine s option and provided however that in any case all costs of shipping if necessary are paid by you the purchaser THE WARRANTY REGISTRATION CARD SHOULD BE ACCURATELY COMPLETED MAILED TO AND RECEIVED BY SABINE WITHIN FOURTEEN 14 DAYS FROM THE DATE OF YOUR PURCHASE In order to obtain service under these warranties you must a Bring the defective item to any Authorized SABINE DEALER and present therewith the ORIGINAL PROOF OF PURCHASE supplied to you by the AUTHORIZED SABINE DEALER in connection with your purchase from him of this product If the DEALER is unable to p
16. be located so that its position does not interfere with proper ventilation Do not use in direct sunlight Do not place flat against a wall or in a built in enclosure that will impede the flow of cooling air 8 This product should not be placed near a source of heat such as a stove or radiator 9 Connect only to a power supply of the type marked on the unit adjacent to the power entry module 10 Never break off the ground pin on the power supply cord 11 Power supply cords should always be handled carefully Never walk or place equipment on power supply cords Periodically check cords for cuts or signs of stress especially at the plug and the point where the cord exits the unit 12 The power supply cord should be unplugged when the unit is to be unused for long periods of time 13 Care should be taken so that objects do not fall and liquids are not spilled into the unit through the ventilation holes or any other openings 14 This unit should be checked by a qualified service technician if A The power supply cord or plug has been damaged B Anything has fallen or been spilled into the unit C The unit does not operate correctly D The unit has been dropped or the enclosure damaged 15 The user should not attempt to service this equipment All service work should be done by a qualified service technician OSHA 2201 1995 revised CautionsandWarranties and Warranties CAUTION EXPOSURE TO EXTREMELY HIGH NOISE LEVELS M
17. d by Sabine s negligence Sabine does not assume liability for personal injury or property damage arising out of or caused by anon Sabine alteration or attachment nor does Sabine assume any responsibility for damage to interconnected non Sabine equipment that may result from the normal functioning and maintenance of the Sabine equipment UNDER NO CIRCUMSTANCES WILL SABINE BE LIABLE FOR ANY LOST PROFITS LOST SAVINGS ANY INCIDENTAL DAMAGES OR ANY CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT EVEN IF SABINE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES THESE LIMITED WARRANTIES ARE IN LIEU OF ANY AND ALL WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE PROVIDED HOWEVER THAT IF THE OTHER TERMS AND CONDITIONS NECESSARY TO THE EXISTENCE OF THE EXPRESS LIMITED WARRANTIES AS HEREINABOVE STATED HAVE BEEN COMPLIED WITH IMPLIED WARRANTIES ARE NOT DISCLAIMED DURING THE APPLICABLE ONE YEAR PERIOD FROM DATE OF PURCHASE OF THIS PRODUCT SOME STATES DO NOT ALLOW LIMITATION ON HOW LONG AN IMPLIED WARRANTY LASTS OR THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU THESE LIMITED WARRANTIES GIVE YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH MAY VARY FROM STATE TO STATE THESE LIMITED WARRANTIES ARE THE ONLY EXPRESS WARRANTIES ON THIS P
18. e LAA Test performed using an Audio Precision System One model 322 7 000 8 000 10 00 11 00 12 00 t 9 000 e ES 13 00 100 1k 10k ENGINEERING SPECIFICATIONS FILTERS Nine independent digital notch filters per channel which can be controlled automatically from 20 Hz to 20 KHz Filter width user controllable either 1 10 or 1 5 octave Resolution 1 Hz from 20 Hz to 20 KHz Time required to find and eliminate feedback 0 4 seconds typical 1KHz Total number of combined filters active per channel user selectable from 1 to9 Number of Dynamic vs Fixed filters per channel user selectable NOISE GATE Dwell time 500 mSec Threshold 60 GB instant off LAST CONFIGURATION STORED IN MEMORY INPUT OUTPUT Input Impedance Balanced or unbalanced gt 10K Ohms PIN 2 high Output Impedance Balanced or unbalanced 10 Ohms nominal PIN 2 high Input Output Maximum Signal Levels Balanced 29dBV peak unbal anced 23 dBV peak Bypass manual switch Headroom 25dB peak 4dBV nominal input I O Connectors XLR 3 and 1 4 TRS PERFORMANCE Spectral Variation lt 25 dB 20Hz to 20 KHz SNR gt 100 dB typically 110dB with Noise Gate set at 60 dB with 0 5 sec hold time THD lt 0 02
19. e FBX is in LOCK FIXED mode The Fixed filters will stay locked until you press the LOCK FIXED button again The Dynamic filters are not affected SELECTING 1 5 OCTAVE FILTERS If the FBX is to be used for a music application the standard 1 10 octave filter is most effective However in spoken word applica tions such as lectures or teleconferencing the wider 1 5 octave filter is recommended You may enable the 1 5 octave filters by pressing the FIFTH OCTAVE button and the built in LED will light Only filters set after pressing the button in will be 1 5 octave Press the button again to set subsequent filters to standard 1 10 octave filters FRONT PANEL o CUP LEVEL ADJUST FIER CONTRO Fanno Beis CHANNEL A 000000000 FEX02 BSabine o E aa PED A O a 8 8 BVA _ MADE INTHE USA i owe E 000000000 DA as ACTIVE BYPASS SET TOTAL NO LOCK FIXED FILTERS Bypass mode takes the unit out of the signal path so thatit willhave no effect on the program In Active mode the unit controls feedback automatically LEDs indicate whether the unit is in Active or By pass mode CLIP LEVEL ADJUST Adjust the CLIP LEVEL so that the CLIP LED blinks intermittently Higher levels will cause distortion and lower levels will cause an in crease in soundsystem noise level The FBX combines the input and output levels into one control so that there is no net gain or loss of signal through the unit regardless of where the CLIP LEVEL
20. eceipt of any bulletins or other forms of notification which may become necessary in connection with any condition that may require dissemination of information or correction 3 Youmay contact Sabine directly by telephoning 386 418 2000 4 Please have the Sabine product name and serial number available when communicating with Sabine Customer Service SABINE TEI see from GRQ Op Guide v9 p65 020123 hto FERX1802 Mon DUAL FEEDBACK EXTERMINATOR OPERATING GUIDE Your Sabine FBX is the state of the art in automatic feedback elimination For best results it is important to follow the INSTRUCTIONS FOR OPERATION Please also take time to read this valuable new information 1 Please note the following change In operation of the FBX 1802 The FBX 1802 now incorporates multicolored BYPASS LEDs that light red when the unit is in BYPASS mode and green when in ACTIVE mode The unit previously used a red LED that lighted only when the FBX 1802 was in BYPASS mode 2 User selectable noise gate One outstanding feature of your FBX 1802 is a user selectable noise gate It acts as an automatic switch that Opens a microphone only when someone is speaking directly into the mic A noise gate is especially useful in systems that have a number of open microphones such as courtrooms conference rooms or distance learning sites Gating microphones greatly reduces the number of possible feedback points in the room and allows for more system gain
21. la O ames pet es a pride raat O lt a U8 mort Sas set GROUND Ku akri shy A VOID WARRANTY ut A C ADAPTOR TheFBX external power supply is included with the unit Use of any other power supply may cause permanent damage to the unit andWILL VOID THE WARRANTY MEMORY The FBXstores the positions and depths of the filters in nonvolatile internal memory when the unit is turned off or during a power failure The unit will return all filters to their previous frequencies and depths when it is turned back on BYPASS MODE The FBX has a true power off bypass The signal is unaffected in BYPASS MODE even if the unit is turned off Please note that if a combination of BALANCED and UNBALANCED inputs and out puts is used the signal may be disconnected in BYPASS MODE RESETTING THE FILTERS The user must reset the FBX if the microphones or speakers are THE INPUTS AND OUTPUTS 1 4 TRS and XLR balanced and unbalanced moved significantly To reset the unit place the PA system s master volume to minimum and then press the reset button for four seconds until the FILTER LEDs stop flashing Then follow the system initialization procedure explained previously POWER DOWN Place the unit in BYPASS MODE before turning the unit off OPTIONAL TRANSFORMERS Optional transformers audio isolation transformers are available The model FBX 1802 is available with Jensen balanced line transformers that will provide up
22. le l int rieur S addresser un technicien qualifi Attention Pour r duire le risque d incendie ou de choc lectrique ne pas laisser l appareil sous la plouie ou l humidit Achtung Dieses Ger t muss schutzgeerdet sein Achtung Gefar eines elektrischen Stormschlags Gehause nicht ffnen Achtung Gefar eines elektrischen Stormschlags Geh use nicht ffnen Keine con Benutzer zu bedienenden Teile im Ger teinneren Uberlassen Sie das Ger t zu Servicezwecken nur geschultem Fachpersonal Um Brandgefar oder das Risiko eines elektrischen Schlags auszuschlie en das Ger t vor N sse und Feuchtigkeit sch tzen Advertencia Este equipo debe estar conectado a tierra Precauci n Reisgo de descarga el ctrica No abrir Precauci n Riesgo de descarga el ctrica No desmontar las tapas Piezas interiores no reparables por el usuario Reparable s lo por personal cualificado Advertencia Para reducir el riesgo de incendio o de descarga el ctrica no exponga este producto a la lluvia o humedad FCC Statement This device complies with Part 15 Class B of the FCC Rules Operation is subject to the following conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation Warning Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority
23. prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada Japanese EMI Compliance Statement CORB PprCMARRE JEZER d Z oL EARB OTAMI NAS AREE TZAR TO ERREF ILA AML KPRAPERSERKE A RARA VCCI REKMSLU TENET Lol REBAZIIY A FV EV a Yy RER TUEA kaL ZIRE ORALESCLBSH EF RISA SFE gt TI UW RIARMWVELTFSW J Warning The Graphi Q is designed to operate from standard AC power Please be sure the power in your area is compatible with the power requirements marked on the rear of the unit Using the wrong input voltage may cause permanent damage to the unit and will void the warranty The Graphi Q is supplied with one of the following AC power cords Japan 100 VAC U S North America 120 VAC Continental Europe 230 VAC United Kingdom Australia 240 VAC 240 VAC J Caution Replace the fuse with a fuse of exactly the same rating specified on the rear of the product 1 Read all safety and operating instructions before using this product 2 All safety and operating instructions should be retained for future reference 3 Obey all cautions in the operating instructions and on the unit 4 All operating instructions should be followed 5 Use only shielded audio and data cables 6 This product should not be used in the presence of moisture or rain or near any water i e a bathtub sink swimming pool wet basement etc 7 This product should
24. rovide the necessary warranty service you will be directed to the nearest other SABINE AUTHORIZED DEALER which can provide such service OR b Ship the defective item prepaid to SABINE INC 13301 HIGHWAY 441 ALACHUA FL 32615 8544 including therewith a complete detailed description of the problem together with a legible copy of the original PROOF OF PURCHASE and a complete return address Upon Sabine s receipt of these items If the defect is remedial under the limited warranties and the other terms and conditions expressed have been complied with Sabine will provide the necessary warranty service to repair or replace the product and will return it FREIGHT COLLECT to you the purchaser Sabine s liability to the purchaser for damages from any cause whatsoever and regardless of the form of action including negligence is limited to the actual damages up to the greater of 500 00 or an amount equal to the purchase price of the product that caused the damage or that is the subject of or is directly related to the cause of action Such purchase price will be that in effect for the specific product when the cause of action arose This limitation of liability will not MADE IN USA Manufactured by Sabine Inc 13301 Highway 441 Alachua Florida 32615 8544 USA Phone 386 418 2000 Fax 386 418 2001 www Sabine com apply to claims for personal injury or damage to real property or tangible personal property allegedly cause
25. s active when you press the LOCK FIXED button See other side SABINE 13301 Highway 441 Alachua FL 32615 8544 USA ADAPTIVE V AUDIO Phone 904 418 2000 Fax 904 418 2001
26. the final power amplifier are matched This occurs when the clip level indicators on the FBX and the final amplifier blink at the same time Don t be surprised if the CLIP LEVEL ADJUST appears low after adjustment during sound check In some cases the proper CLIP LEVEL ADJUST setting will be as low as the nine o clock position This is normal and will not affect the performance of the FBX or your sound system Please note If you are using a mixer with unbalanced 1 4 outputs you must use standard unbalanced cables and connec tors when connecting it to the FBX Similarly if your mixer is wired for balanced 1 4 Ring Tip Sleeve outputs you must use that type of connector If you do not follow this procedure you may experience a loss of gain when using the FBX The FBX is designed for balanced output If either side of the balanced output is grounded at any point clipping or a 6 dB loss in dynamic range may occur at high signal levels 23 dB peaks or higher HOW TO USE THE NEW LOCK FIXED FEATURE In certain situations the FBX may mistake music for feedback and drive the Fixed filters deeper than necessary Typical examples might be in a church with a pipe organ or during a performance with a great deal of intentional sustained electric guitar feedback You may prevent the Fixed filters from deepening beyond their preset depth by pressing the LOCK FIXED button on the front panel The LOCK FIXED LED will light to indicate that th
27. to operate the equipment NOTE This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures eReorient or relocate the receiving antenna elncrease the separation between the equipment and receiver eConnect the equipment into an outlet on a circuit different from that to which the receiver is connected eConsult the dealer or an experienced radio TV technician for help Canadian Compliance Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications Le present appareil numerique n emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la class B
28. ut worrying if the program is going to be ruined by feedback Auditoriums and churches of all sizes will enjoy reliable feedback control Hotels and conference centers can offer meeting rooms with sound systems that won t howl during programs Professionals mixing sound forlarge bands are often simulta neously responsible for a number of performers each of whom has separate monitor mixes If feedback occurs it is very difficult to tell which of the many monitor mixes is resonating IfFBXsare substituted for graphic EQs for feedback control the feedback will automatically be eliminated without any effort from the sound technician WHY THE FBX The simple beauty of the FBX is its ability to quickly and effectively eliminate feedback with narrower filters than ever before possible TheFBX delivers superior sound quality automatically e TheFBX 1802 is a dual channel unit e Ithas animproved algorithm that allows itto better distinguish the difference reducing the chance for error e TheFBX 1802 has improved shielding that prevents interference with broad band wireless microphone systems setting The FBX Feedback Exterminator is a registered trademark of Sabine inc and is the brand name of its line of automatic feedback controllers Covered by U S Patent No 5 245 665 Other patents pending SPECIAL FEATURES OF THE FBX 1802 yet it has improved feedback control and tonal clarity That translates to The FBX 18
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