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1. Introduction
Thank you for choosing the AO4S-192. This analog expansion board adds 4 analog outputs in
professional quality to RME's HDSPe AIO. Level adjustment, balanced circuit design, 118 dBA
SNR and highest suppression of PC-noise guarantee perfect sound quality.
2. Package Contents
Please ensure that all the following parts are included in the AO4S-192 AIO's packaging box:
• Analog Expansion Board
• 1 flat ribbon cable, 26 pins
• 1 set of nuts
• Manual, drill template
3. Hardware Requirements
The AO4S-192 AIO can only be connected to the HDSP 9632. No more than one AO4S-192
can be connected to each card.
4. Technical Specifications
• Resolution DA: 24 Bit
• Signal to Noise ratio (SNR): 114 dB RMS unweighted, 118 dBA @ 44.1 kHz (unmuted)
• THD: < - 104 dB, < 0.00063 %
• THD+N: < -102 dB, < 0.0008 %
• Crosstalk: > 110 dB
• Maximum output level: +19 dBu
• Frequency response @ 44.1 kHz, -0.5 dB: 1 Hz – 22 kHz
• Frequency response @ 96 kHz, -0.5 dB: 1 Hz – 34 kHz
• Frequency response @ 192 kHz, -0.5 dB: 1 Hz – 50 kHz
• Output: 4 x 1/4" TRS jack, servo balanced
• Output impedance: 50 Ohm
• Output level: Hi Gain, +4 dBu, -10 dBV
• Output level at 0 dBFS @ Hi Gain: +19 dBu
• Output level at 0 dBFS @ +4 dBu: +13 dBu
• Output level at 0 dBFS @ -10 dBV: +2 dBV
• Power supply via flat cable
• Standard bracket, board dimensions: 90 x 95 mm
User's Guide AO4S-192 AIO
3
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