Beocreate : DAC output and TPA3128 gain


In order to prevent clipping with reduced supply voltage, I would like to know what the max RMS voltage output is of the DAC before the amp input and which gain (from 20dB to 36dB) has been selected for the desing of the amps? Where can I find this information?

If the DAC is the same as the Pro model, the output is probably 2.1V RMS max in which case the lowest gain of 20dB would be the best option for the amps to avoid loss of audio quality from excessive volume reduction in software. This also means that a supply of minimum 21Vdc is a good idea to prevent clipping at hight volume levels.

Thanks in advance for your support.


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