Is it of any benefit to use a software upsampler (Sox Resampler) to upsample, let's say from 44100 to higher or 88200 / 96000 to higher? Btw, I use your DAC 2 HGC. :-) - Vjekoslav
In some cases, upsampling will improve the output of your D/A converter. The low-pass filters incorporated into the upsampling process will essentially replace the filters in your D/A converter. If the upsampling software has better filters than those built into the D/A, then you may experience an improvement.
But, the upsampling will usually add distortion if the original file has intersample overs. Most commercial recordings have intersample overs. Distortion due to overloads can be prevented if you decrease the signal level by 3.5 dB before upsampling. If you don't reduce the gain before processing, the damage done by intersample overs will be far outweigh any advantages provided by the upsampling!
We actually use this technique in our DAC2 and DAC3 converters, so there would be no need to apply this processing before feeding a Benchmark DAC. We also drop the gain by 3.5 dB before upsampling.
Don't upsample your audio files if you are using a Benchmark DAC, there is no need to do this twice. If you want to upsample files for use with other DACs, reduce the gain by 3.5 dB before processing.
Caution: Do not remove the internal safety cover that encloses the AC power entry.
Note: The cover is designed to fit tightly against the side of the unit.
The ADC1 converters have the ability to provide 16-bit outputs on the auxiliary output while providing high-resolution outputs on all other outputs. The 16-bit output mode is always TPDF dithered. The auxiliary output can be set for 16-bit operation or 24-bit operation. All other outputs are always 24-bit.
The ADC1 converters also have the ability to output up to 3 different sample rates simultaneously. The USB, Main, and Aux outputs are independent. The sample rate of the USB output is controlled by the computer.
