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Wohler AMP1-SDA, User Manual, Page: 10 / 18

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Wohler AMP1-SDA User Manual Download Page 10

© 2010 Wohler Technologies, Inc. All rights reserved.

8

AMPx-SDA User Guide

Front Panel Controls

Front Panel Controls

Figure 1–1

AMP1-SDA Front Panel

Figure 1–2

AMP2-SDA Front Panel

Dynamics modes:

PPM: 20 dB decay in 1.5 sec. or

 

3 sec hold

VU: 3 sec. hold or 10 sec. hold

Midscale resolution:

1 dB

2 dB

Scale

+16 to -50 dB

Segment size:

.158" x .04" (4.0132 x 1.016 mm)

Table 1–4

Meter Specifications for the AMPx-SDA Series Monitors

Specifications

AMP1-SDA

AMP2-SDA

Speakers

Headphones

Phase

Volume

Power

Brightness

AES

Balance

Analog/Digital

SDI Group

SDI

AES/SDI

Level Meters

Speakers

Headphones

Phase

Volume

Power

Brightness

Balance

Analog/Digital

Sub-Group

AES/SDI

Level Meters

Summary of Contents for AMP1-SDA

Page 1: ...Leader of In Rack Audio Video Data Monitoring and Closed Captioning Solutions CONFIDENCE IS EVERYTHING AMPx SDA Series AMP1 SDA AMP2 SDA Digital Audio Speaker Monitors User Guide Part Number 821027 Revision C ...

Page 2: ...ation Wohler Technologies Inc makes no warranty or representation either express or implied with respect to software documentation their quality 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 inci...

Page 3: ... four high performance transducers 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 Topics Page Introduction 1 Safety Instructions 2 Installation Recommendations 3 Features 4 Applications 5 Specifications 6 Front Panel Controls 8 R...

Page 4: ...om being walked on or pinched particularly at plug s source on the equipment and at the socket 8 Use only the attachments accessories specified by the manufacturer 9 Unplug the equipment during lightning storms or when unused for long periods of time 10 Refer all servicing to qualified service personnel Servicing will be required under all of the following conditions The equipment has been damaged...

Page 5: ...s 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 poin...

Page 6: ...isfactory 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 240VAC 50 60Hz switching power supply is a self resetting sealed type with automatic over voltage and over current shutdown There is...

Page 7: ...bgroup 1 or 2 of Group 1 source selection via front panel toggle switch SDI AES source selection via front panel toggle switch Digital analog source selection via front panel toggle switch Headphone output 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 c...

Page 8: ...onse Sixth Octave 80 Hz 16 kHz 7 dB 10 dB 50 Hz 22 kHZ 80 Hz 16 kHz 5 dB 10 dB 40 Hz 20 kHZ Power Output RMS Each Side 4 RMS Bass 4 10 W transient 5 W continuous 20 W transient 10 W continuous 14 W transient 10 W continuous 35 W transient 25 W continuous Distortion Electrical 0 15 at any level below limit threshold Distortion Acoustic 8 or less at worst case frequencies above 180 Hz including cabi...

Page 9: ...e 32 to 48 kHz auto select D to A converter 24 bit low jitter Converted analog out S N 90 dB Converted analog out THD 0 008 AES Termination 75 removable unbalanced Table 1 4 Meter Specifications for the AMPx SDA Series Monitors Specifications AMP1 SDA AMP2 SDA Level Meter Type 26 segment tri color LED bargraph display 53 Segment LED bargraph Level Calibration 0 4 6 8 dBv Frequency Response 20 Hz t...

Page 10: ...ld VU 3 sec hold or 10 sec hold Midscale resolution 1 dB 2 dB Scale 16 to 50 dB Segment size 158 x 04 4 0132 x 1 016 mm Table 1 4 Meter Specifications for the AMPx SDA Series Monitors Specifications AMP1 SDA AMP2 SDA Speakers Headphones Phase Volume Power Brightness AES Balance Analog Digital SDI Group SDI AES SDI Level Meters Speakers Headphones Phase Volume Power Brightness Balance Analog Digita...

Page 11: ... 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 Thi...

Page 12: ...d 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 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...

Page 13: ... 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 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 AES Input Termination I...

Page 14: ...ings Figure 1 4 AES Error Indication Settings 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 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 AES Input Leve...

Page 15: ...SDI input only when the Analog Digital Source Select switch is set to Digital and the Digital Source Select switch is set to SDI 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 r...

Page 16: ...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 INTERNAL POWER SUPPLY APPROVED BY UNDERWRITERS LABS SEE POWER SUPPLY LABEL ON SIDE 1 2 3 50 60 Hz AMP1 SDA SERIAL NO 100 240 VAC 253830 AES EBU OUT OUT SDI IN ANALOG IN CH A L 1 2 3 4 5 6 AES EBU IN GAIN CALIB FROM DIGITAL SOURCE ANALOG IN CH B R SEL OU...

Page 17: ...urn 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 ...

Page 18: ...LOG IN SELECTED ANALOG OUT X TERM 2 TERM 1 ERROR FROM SOURCE DIGITAL 0 18 20 9 4 6 GAIN CALIB DIGITAL 20 dBFS 8 dB 100 240 VAC 50 60 Hz 1 0 A MONTH YEAR SERIAL NO 1 3 2 1 3 2 CALIB GAIN Power SDI Out SDI In AES EBU Out Analog In Selected Analog Out from Digital Source AES EBU In Gain Calibration Error Type L R 53 Segment High Resolution Level Meters Digital to Analog Converter L R AES Out from SDI...

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