User Manual
Contents
1. 1 Reception errors errors in reception of data or no data stream at all or 2 Reception and data errors errors in reception and data errors identified by the sending device possibly invalid 10 2010 Wohler Technologies Inc All rights reserved AMPx SDA User Guide Rear Panel Connectors e SDISignal Error LED This LED labeled SDI glows green as long as a valid SDI digital datastream is being received It glows red if TSR errors are present in the signal If there is no SDI signal present the LED will be unlit Rear Panel Connectors Common Connectors e Power Attach a standard IEC 320 power cord between this connector and mains power 100 250VAC 50 60 Hz The front panel Power LED will glow green to indicate operating voltages are present e AES Out From SDI The AES EBU Out outputs an AES EBU signal as converted from the SDI input and as selected by the SDI Group Select switch This connector is configured for an unbalanced 75 W connection e AES Termination and Error Type DIP Switch This 4 position DIP switch is used to set the termination characteristics for the AES inputs and select the AES signal error indication type e AES Input Termination In the event that the AES input channel is fed to downstream equipment via a Y or T connector then DIP switch Section S2 must be placed in the unterminated up position If there is no downstream equipment connected then Section S2 must be placed in the2. terminated down position See Figure 1 3 below termination settings Figure 1 3 AES Termination Settings AES Input Termination ERROR ERROR rer 1 re RM 1 TERM 2 TERM 2 x x Unterminated Terminated 1234 1234 2010 Wohler Technologies Inc All rights reserved 11 AMPx SDA User Guide Rear Panel Connectors Note Position 3 is not used e AES Error Indication Type There are two DIP switch selectable modes of AES error detection that will create a RED error indication in the AES Signal Error Indication LED on the front panel 1 Reception errors errors in reception of data or no data stream at all 61 Down or 2 Reception and data errors errors in reception and data errors identified by the sending device possibly invalid S1 Up See Figure 1 4 for AES error DIP switch settings Figure 1 4 AES Error Indication Settings AES Error Indication Settings Error Fault Type Red LED ERROR eam TERM 1 TERM 2 TERM 1 TERM 2 x Reception ALL Reception and Error Only Data Error 1234 1234 e AES Input Connector The AES EBU IN input connector is meant to receive standard AES EBU signals This female BNC connector is configured for an unbalanced 75 Q connection Note that the unit will monitor the AES EBU In input only when the Analog Digital Source Select switch is set to Digital and the Digital Source Select switch is set to AES e AES Inp
3. W Wohler CONFIDENCE IS EVERYTHING World Leader of In Rack Audio Video Data Monitoring and Closed Captioning Solutions AMPx SDA Series e AMP1 SDA e AMP2 SDA Digital Audio Speaker Monitors User Guide Part Number 821027 Revision C 2010 Wohler Technologies Inc and PANORAMA All rights reserved This publication is protected by federal copyright law No part of this publication may be copied or distributed stored in a retrieval system or translated into any human or computer language in any form or by any means electronic mechanical manual magnetic or otherwise or tae osed to third parties without the express written permission of Wohler Technologies Reproduction Licensed users and authorized distributors of Wohler Technologies Inc products may copy this document for use with Wohler Technologies Inc products provided that the copyright notice above is included in all reproductions Customer Support Wohler Technologies Inc 31055 Huntwood Avenue Hayward CA 94544 www wohler com Phone 510 870 0810 FAX 510 870 0811 US Toll Free 1 888 596 4537 1 888 5 WOHLER Web www wohler com Sales sales wohler com Support support wohler com Disclaimers Even though Wohler Technologies Inc has tested its equipment and software and reviewed the documentation Wohler Technologies Inc makes no warranty or representation either express or implied with respect to software documentation their qualit
4. below limit threshold 8 or less at worst case 6 or less at worst case frequencies above 180 Hz frequencies above 120 Hz Distortion Acoustic including cabinet including cabinet resonance typically less resonance typically less than 2 than 1 5 Hum and Noise better than 68 dD below full output Magnetic Shielding lt 1 Gauss any adjacent lt 0 8 Gauss any adjacent surface surface Power Consumption 35 W 45 W Average Maximum AC Mains input 100 240VAC 50 60 Hz 6 2010 Wohler Technologies Inc All rights reserved AMPx SDA User Guide Specifications Table 1 2 Physical Specifications for the AMPx SDA Series Monitors Specifications AMP1 SDA AMP2 SDA 1 75 x 19 x 12 inches 3 5 x 19 x 12 inches Dimensions H x W x D 44 x 483 x 305 mm 89 x 483 x 305 mm Weight 14 Ibs 6 4 kg 18 Ibs 8 2 kg Table 1 3 Digital to Analog Specifications for the AMPx SDA Series Monitors Specifications AMP1 SDA AMP2 SDA D to A gain calibration dBu dBFS 8 20 4 20 6 9 0 18 swtich selectable AES sampling rate 32 to 48 kHz auto select D to A converter 24 bit low jitter Converted analog out S N gt 90 dB Converted analog out THD lt 0 008 AES Termination 75Q removable unbalanced Table 1 4 Meter Specifications for the AMPx SDA Series Monitors Specifications AMP1 SDA AMP2 SDA Level Meter T
5. cers driven by three power amplifiers two amplifier driver combinations handle midrange and high frequency information in stereo while the third center channel reproduces information below the 500 Hz crossover point Topics Introduction Safety Instructions Installation Recommendations Features Applications Specifications o O A WN Be Front Panel Controls Rear Panel Connectors 11 Technical Functional Overview 16 2010 Wohler Technologies Inc All rights reserved 1 AMPx SDA User Guide Safety Instructions Safety Instructions 1 Read keep and follow all of these instructions heed all warnings Do not use this equipment near water or moisture Use only a dry cloth to clean the equipment Do not block any ventilation openings Install only in accordance with the instructions in the section entitled Installation Recommendations on page 3 Do not install near any heat source such as a radiator heat register amplifier or stove Do not attempt to plug the unit into a two blade outlet with only two prongs of equal width IMPORTANT By design these monitors will only plug into a three prong outlet for your safety If the plug does not fit into your outlet contact an electrician to replace the obsolete outlet T 10 Protect the power cord from being walked on or pinched particularly at plug s source on the equipment and at the socket Use only the attachments accessories specified b
6. dance connections and the output signals are not affected by the Volume Balance controls or headphone mute For XLR pinout information see Figure 1 6 below Figure 1 6 XLR Pin Outs Pin 1 Pin 1 Gnd Gnd Shield Shield 2010 Wohler Technologies Inc All rights reserved 13 14 AMPx SDA User Guide Rear Panel Connectors e Analog In These two 3 pin female XLR connectors accept standard analog audio signals Both connectors are configured for balanced 40k Q connections Note that the unit will monitor analog signals input on these two connectors only when the Analog Digital Source Select switch on the front panel is set to Analog For XLR pinout information see the Figure 1 6 on page 13 AMP1 SDA Specific Connectors Figure 1 7 AMP1 SDA Rear Panel AES EBU In AES Termination Gain Calibration 100 240 VAC eM 2 N AMP1 SD 50 60 Hz mo 253830 IN caue Analog In Selected Analog Out SDI In from Digital Source e Level Gain Calibration and Display Mode 6 Position DIP Switch This DIP switch sets the Line Level Calibration Meter Gain Calibration and Bar Graph Display Mode Figure 1 8 Rear Panel DIP Switch Settings AMP1 Digital LM26 Rear Panel DIP Switch Settings Line Level Meter Gain Display Mode Calibration Calibration Floating Segment 1 x 45x COUT vu Peak 10 Second Hold ALILIOUL operate OOOUALI vu Peak 3 Second Hold 123456 ODDALI PPM Peak No Hold CILLA PPM Peak 3 Second H
7. from electrical interference requires the use of shielded cable however satisfactory results can sometimes be obtained without it The internal circuitry common is connected to the chassis AC Power The unit s AC mains connection is via a standard IEC inlet with safety ground connected directly to the unit s chassis The universal AC input 100 240V AC 50 60Hz switching power supply is a self resetting sealed type with automatic over voltage and over current shutdown There is no user replaceable fuse in either the primary or secondary circuit Features e Excellent high frequency response for positive detection of background whine and noise e Audible and visual indication of phase polarity problems e Thorough magnetic shielding for placement next to video monitors e Two high resolution 26 segment tri color LED bar graph level meters e SDI input and loop through on unbalanced BNC connectors 2010 Wohler Technologies Inc All rights reserved AMPx SDA User Guide Applications e AES EBU input on unbalanced BNC connector e Analog stereo inputs on two balanced XLR connectors e AES output converted from SDI input on BNC connector e Analog output of selected input on two balanced XLR connectors e SDI signal status indication LED e AES signal status indication LED e SDI subgroup 1 or 2 of Group 1 source selection via front panel toggle switch e SDI AES source selection via front panel toggle switch e Digital ana
8. hase conditions In general it is sufficient to regard the Avg LED average phase condition as adequete for proper phase monitoring While it is normal for stereo signals to contain some intermittant instanateous out of phase and in phase conditions small LEDs a steady red glow of the larger LED almost always indicates an out of phase alarm condition e Balance This pans the volume balance between the left and right speakers If the balance is adjusted hard left or hard right a slight left right channel mix is retained only in low bass frequencies so that phase discrepancies can be discerned e SDI Subgroup Select 1 or 2 This 2 position toggle switch allows the operator to choose whether the unit will monitor sub group 1 or sub group 2 of the SDI data stream when the Digital Source Select switch is set to SDI Subgroup selections 1 and 2 are derived from Group 1 as follows e Subgroup 1 Channels 1 and 2 e Subgroup 2 Channels 3 and 4 e Digital Signal Error LEDs These two bi color Green Red LEDs indicate the input presence and status of the two types of digital signals AES and SDI These LEDs function whether or not either of the digital signals is selected for monitoring through the unit e AES Signal Error LED This LED labeled AES glows green as long as a valid AES EBU digital datastream is being received It glows red to indicate errors By setting a rear panel DIP switch two types of error detection are available
9. log source selection via front panel toggle switch e Headphone output e Power indication LED Applications The AMP1 Digital series is ideally suited for use in VTR bays mobile production vehicles teleconferencing installations multimedia systems satellite links and cable TV facilities and on air radio studios Designed and manufactured in the U S the AMP1 SDA is backed by a strong warranty and a satisfaction guaranteed return policy 2010 Wohler Technologies Inc All rights reserved 5 AMPx SDA User Guide Specifications Specifications Table 1 1 Audio Specifications for the AMPx SDA Series Monitors Specifications AMP1 SDA AMP2 SDA Analog IN XLR 3 pin female 2 each Input connectors SDI IN BNC female 1 each AES IN BNC female 1 each XLR 110 Balanced ital j Digital input impedance BNC 75 Q Unbalanced Analog input impedance XLR 40k Q Balanced Input Level for Maximum Output Volume Full On div Palgnced Input Overload 26 dBv balanced Peak Acoustic Output 2 ft 98 dB SPL 104 dB SPL 80 Hz 16 kHz 7 dB 80 Hz 16 kHz 5 dB Response Sixth Octave 10 dB 50 Hz 22 kHZ 10 dB 40 Hz 20 kHZ Power Output RMS Each Side 4 9 10 W transient 5 W 14 W transient 10 W continuous continuous RMS Bass 4 QO 20 W transient 10 W 35 W transient 25 W continuous continuous Distortion Electrical lt 0 15 at any level
10. ns for cooling are necessary as long as the ambient temperature inside the rack area does not exceed approximately 40 C 104 F Sympathetic Vibration Sympathetic vibration from other equipment cables etc in the rack may be serious enough to interfere with the unit s sound quality out in the listening area The use of thin card stock and or felt or foam weather stripping type materials between adjacent vibrating surfaces or tying up loose cables etc may be required to stop vibrations external to the unit Mechanical Bracing Even though the unit is fairly heavy the chassis is securely attached to the front panel at eight points along its surface not just at the four corners of the chassis ears This feature will reduce or eliminate rear bracing requirements in many mobile portable applications The weight of internal components is distributed fairly evenly around the unit 2010 Wohler Technologies Inc All rights reserved 3 4 AMPx SDA User Guide Features Audio Connections Connection of the audio feeds is straightforward For digital inputs Impedances are 75 Q for the unbalanced BNC connectors and 110 Q for the balanced XLR connectors Analog inputs have an impedance of 40k Q for the balanced XLR connectors Care should be exercised to avoid mismatched cable types and other similar causes of undesired reflections in RF signal systems Electrical Interference As with any audio equipment maximum immunity
11. old 123456 123456 Note Position 6 of DIP switch is not functional 2010 Wohler Technologies Inc All rights reserved AMPx SDA User Guide Rear Panel Connectors Line Level Calibration The unit is calibrated at the factory To recalibrate 1 Turn on the power 2 Apply a reference level nominal 0 signal to all four channels 3 Make sure the Gain Calibration DIP sections S2 S3 are set to the nearest level i e 0 4 6 or 8 4 Place section S1 of the DIP switch in the DOWN position 5 Wait 10 seconds The unit will remove the previous calibration The unit will make sure that all four channels are within 4 dB of nominal zero If all four channels are within this range then the new calibration will be applied If any channel is outside this range then no new calibration will be applied 6 Place section S1 of the DIP switch in the UP position and return unit to service If you want to calibrate again turn off the power to the unit and repeat steps 1 through 6 See Figure 1 8 on page 14 for settings Meter Gain Calibration DIP switch sections S2 and S3 determine the Gain Calibration which adjusts the level of the input signal and the resultant 0 level displayed on the LED bargraphs Factory setting is 4 dB See Figure 1 8 on page 14 for all settings Bar Graph Display Mode DIP switch sections S4 and S5 determine how peak levels are displayed for the four associated meters on the front panel S4
12. reserved Left Speaker Woofer Speaker Right Speaker
13. selects either the PPM level or a new auto reset Peak Hold of the VU level not the PPM value When S3 is set for VU Peak S5 sets the Hold time to either 3 or 10 seconds If S4 is set for PPM Peak S5 determines whether it is displayed in the original floating PPM dot mode no hold continuous decay of 20 dB in 1 5 seconds or as a 3 second auto reset hold The factory default setting is PPM Peak No Hold continuous decay of 20 dB in 1 5 seconds See Figure 1 8 on page 14 for all settings Note that section S6 on the DIP switch is not used 2010 Wohler Technologies Inc All rights reserved 15 AMPx SDA User Guide Technical Functional Overview AMP2 SDA Specific Connectors Figure 1 9 AMP2 SDA Rear Panel Gain Calibration 0 O fe Error Type W Wohler a AES EBU ARAE mpeson LI D ALOG O AES EBU In SDI In Selected Analog Out from Digital Source Technical Functional Overview Figure 1 10 below illustrates the overall functionality of the AMPx SDA Series monitors Figure 1 10 AMPx SDA Block Diagram L R S 53 Segment E High Resolution amp Level Meters E Headphon 2e Analog Input D Analog Input Eja E AES Input G3 Digital to Analog Converte AES Out from SDI 4 SDI Output SDI to AES eck i Phase Indication SDI Inputl with Sub Group f Selector 16 2010 Wohler Technologies Inc All rights
14. speakers left and right and woofer speakers The AMP1 SDA has two woofers wired in series and the AMP2 SDA has one larger woofer The two side channel speakers reproduce in stereo only the mid and high frequencies Please note that the woofer speaker center is not a dedicated center nor LFE speaker Power Indication LED This LED glows green to indicate the AMPx SDA is connected to mains power and an operation voltage is present Audio Level Meter LED Bar Graphs Audio levels for the selected source right and left are visually displayed via these two high resolution tricolor LED bargraph meters Dynamic range for these meters is 65 dB and they are able to simultaneously display signal levels using both PPM and VU standards Alternate display modes are user selectable via a DIP switch accessible through the top cover of the unit Contact the factory for additional information concerning meter scales and ballistics Volume This controls the loudness of the audio reproduced by the internal speakers or connected headphone Clock wise rotation of this control increases the loudness of the monitored audio Headphones Select the headphone audio sources as you would for the internal speakers When you plug in headphones the internal or external speakers will mute This jack accepts a standard 1 4 phone type stereo plug Analog Digital Source Select This two position toggle switch allows the operator to choose between two primary inpu
15. t sources Analog or Digital When this toggle switch is set to Analog the unit will monitor the signals as input on the two rear panel Analog In XLR connectors When this toggle switch is set to Digital the unit will monitor one of two types of digital signal sources as chosen by the Digital Source Select switch Bar Graph Brightness This control is recessed into the front panel and can be accessed using a small screwdriver Turning it clockwise will increase the relative brightness of the bargraph display LED segments Adjusting this one control will simultaneously affect the brightness of both bargraph displays on the front panel Phase Indication LEDs These three LEDs offer instant verification of phase polarity conditions in the pair of channels selected for monitoring in the left right channel speakers There are three LEDs the 2010 Wohler Technologies Inc All rights reserved 9 AMPx SDA User Guide Front Panel Controls two smaller LEDs labeled Fast left side of the Phase section show instantaneous phase relationships in the signal while the larger LED labeled Avg right side of the Phase section will indicate the average phase condition The small Fast LED on the left glows or blinks green when signals are in phase The small Fast LED on the right glows or blinks amber for out of phase signals The larger Avg LED indicates the average phase condition by glowing green for in phase conditions or red for out of p
16. ut Level Gain Calibration DIP Switch Input Level Gain Calibration the analog level which corresponds to a given digital input value is settable via this DIP switch The factory setting is 4 dB analog 20 dBFS digital See the silk screened chart on the rear panel or the diagram below for gain calibration settings 12 2010 Wohler Technologies Inc All rights reserved AMPx SDA User Guide Rear Panel Connectors Figure 1 5 AES DA Conversion Gain Calibration Settings AES D A Conversion Gain Calibration Settings 0 dB 18 dBFS 4 dB 20 dBFS 6 dB 9 dBFS 8 dB 20 dBFS e SDI In and Out The SDI In female BNC connector is meant to receive standard SDI signals The SDI Out female BNC connector outputs a reclocked regenerated copy of the signal entering the SDI In input connector Both connectors are configured for unbalanced 75 Q connections Note that the unit will monitor the SDI input only when the Analog Digital Source Select switch is set to Digital and the Digital Source Select switch is set to SDI e Selected Analog Out from Digital Source These two 3 pin male XLR connectors are analog outputs of the selected digital source as selected for the left and right speakers and level meters The left connector outputs the left channel or Channel A and the right outputs the right channel or Channel B Both connectors are configured for low impe
17. y performance merchantability or fitness for a particular purpose Wohler Technologies Inc reserves the right to change or improve our products at any time and without notice In no event will Wohler Technologies Inc be liable for direct indirect special incidental or consequential damages resulting from any defect in the hardware software or its documentation even if advised of the possibility of such damages Some states do not allow the exclusion or limitation for incidental or consequential damages so the above exclusion or limitation may not apply to you Printing This document is intended to be printed on a duplex printer such that the copy appears on both sides of each page This ensures that all new chapters start on a right facing page This document looks best when printed on a color printer since some images may be indistinct when printed on a black and white printer Other Technologies and Products Dolby Dolby Digital Dolby D and Dolby E are registered trademark of Dolby Laboratories Inc Microsoft Windows and Internet Explorer are registered trademarks of Microsoft Corporation Last Update March 23 2010 2009 Wohler Technologies Inc All rights reserved AMPx SDA User Guide Introduction Overview The AMPx SDA Series of audio monitors provides self powered full fidelity stereo monitoring in the smallest rack space possible All models in the series contain four high performance transdu
18. y the manufacturer Unplug the equipment during lightning storms or when unused for long periods of time Refer all servicing to qualified service personnel Servicing will be required under all of the following conditions e The equipment has been damaged in any way such as when the power supply cord or plug is damaged e Liquid had been spilled or objects have fallen onto the equipment e The equipment has been exposed to rain or moisture e The equipment does not operate normally e The equipment has been dropped 2 2010 Wohler Technologies Inc All rights reserved AMPx SDA User Guide Installation Recommendations Installation Recommendations Mounting Note If you wish to set the AES Input Termination AES Status Error Type AES Input Level Gain Line Level Calibration Meter Gain Calibration and or Bargraph Display Mode via the DIP switches accessed on the rear panel be sure to do so BEFORE installing the unit into an enclosed rack or console See pages 12 and 14 for setting information The unit should be mounted where convenient for operating persons ideally at approximately ear level for best high frequency response Its superior magnetic shielding eliminates concerns about locating it adjacent to most types of CRT monitors including even high resolution color monitors Heat Dissipation Heat dissipated by the speaker amps is conducted directly to the left side of the chassis no special consideratio
19. ype SNe meni Gt color LED 53 Segment LED bargraph bargraph display Level Calibration 0 4 6 8 dBv Frequency Response 20 Hz to 20 kHz 0 5 dB Decay Time LED Segment Colors Tricolor red amber green Metering Range 65 dB Display Modes VU with PPM or Peak Hold Select VU Characteristics Rise Time 300 ms to 99 of full indication Decay Time 300 ms PPM Characteristics Attack Time 10 ms 2 seconds 0 to 20 dB Meter dynamics VU bar and or PPM dot select 2010 Wohler Technologies Inc All rights reserved 7 AMPx SDA User Guide Front Panel Controls Table 1 4 Meter Specifications for the AMPx SDA Series Monitors Specifications AMP1 SDA AMP2 SDA PPM 20 dB decay in 1 5 sec or 3 sec hold VU 3 sec hold or 10 sec hold Dynamics modes Midscale resolution 1dB 2 dB Scale 16 to 50 dB Segment size 158 x 04 4 0132 x 1 016 mm Front Panel Controls Figure 1 1 AMP1 SDA Front Panel Power AES Volume Brightness Balance Ounce Headphones Level Meters Speakers Figure 1 2 AMP2 SDA Front Panel Brightness Power Volume Phase Balance Prase san 068 Level Meters AES SDI Analog Digital Speakers 2010 Wohler Technologies Inc All rights reserved AMPx SDA User Guide Front Panel Controls Speakers The internal speaker system is comprised of two mid range tweeter
Download Pdf Manuals
Related Search