Table of Contents Table of Contents Introduction What are SoundPals? ......................1 Documentation Conventions ....................1 Signals and Values ........................1 Warnings ..........................1 Unpacking and Inspection ....................... 2 Power Supply Note ........................2 DAC-24 About the DAC-24 ........................3 DAC-24 Installation ........................
Introduction What are SoundPals? Each RJM & Associates SoundPals module is essentially a digital audio building block that can be used independently, or interconnected to perform more advanced mixing and audio processing functions. SoundPals can be used in both standalone and system configurations: In a “standalone”...
SoundPals are delivered with a power connector only. A separate power supply must be obtained. RJM & Associates offers several power solutions for both domestic and international customers. Refer to “External Power” for detailed power specifications for users who wish to configure their own power source, rather than purchase one from RJM.
DAC-24 About the DAC-24 The RJM & Associates SoundPals DAC-24 is a stereo, 24-bit, AES digital-to-analog converter. The unit offers the following features: Stereo headphone monitoring with level control • 24-bit D/A converter • Automatic detection and de-emphasis • LED indicators for emphasis and valid AES input •...
7) Power Connector — accepts the power jack from the 6 VDC power supply. Refer to “External Power” for more information regarding external power. 8) Power LED — the large green LED below the power jack lights when power is applied. The figure below illustrates the DAC-24’s rear panel: AES IN RIGHT OUT...
Connecting Outputs Connect the analog audio outputs from the LEFT OUT and RIGHT OUT connectors to the inputs of the desired analog destination device. Please note: Balanced outputs are taken from pins 2 ( ) and 3 (-) with pin 1 and the shell grounded. •...
R Trim L Trim Right Out Volume Left Out Headphones SoundPals DAC-24 Stereo Headphones Basic — Inserting Analog Equipment • In this application, an analog ATR is seamlessly inserted in a digital stream, using both the DAC and ADC together.
AES In 2 AES In R Trim L Trim AES In 3 Right Out Volume AES Out AES In 4 Left Out Headphones SoundPals DMIX-41 SoundPals DAC-24 Analog Out (L) Analog Out (R) Digital Out Page 7 DAC-24 User Guide...
Is the sampling frequency within 4% of 48 KHz, 44.1 KHz or 32 KHz? • Does the emphasis use 50/15 µ s time constants? NOTE Please contact the RJM factory if the problem still exists after completing the above procedures. Page 8 DAC-24 User Guide...
Inside the Module In This Section This section provides instructions for opening and closing the SoundPals DAC-24 module to gain access to the internal circuit board. NOTE The internal circuit board should only be removed from the module if you want to set the termination jumper.
7. Replace all Philips XLR mounting screws at the rear of the SoundPals module. 8. Replace the BNC nut and associated lock washer at the rear of the SoundPals module. CAUTION Do not over tighten the screws. External Power About Power Supplies An external power supply conforming to the specifications listed in the following “Power Supply Specifications”...
Power Supply Sources In addition to the RJM-supplied universal power supply, the following power supplies meet the SoundPals requirements: Company Model Note Stancor STA-4860 120V AC, 60 Hz Stancor STAF-0797F 220V AC, 50 Hz with European wall plug (CE compliant).
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