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RE: I have to disagree with you in part...

Did you adjust the jumpers to reduce the output level by -6 dB? Did you set the volume trim to -14 dB? If you do these two things then the output level will be normal. With these settings I drive my Focal powered monitors at a typical volume control setting of -18 dB, but when I want it really loud and the recording was made at a low level then it sometimes gets turned up to -6 dB.

For comparison purposes with other DACs you can use the digital volume control to even things out. The DAC chip has lots of excess digital resolution compared to the op-amp based output circuitry, so you can easily throw away 20 dB of resolution. Actually, if you run these op-amps at a lower level they will have less distortion as well, but for this purpose it probably won't be necessary to do more than set the volume trim to -14 dB. With these settings my system is dead quiet, with no sound coming out of the speakers at all while playing digital silence, even when the volume control is turned all the way up to -0 dB and my ear is right next to a tweeter.

Also, to avoid high frequency glare it's best to select the slow filter and make sure upsampling is off to disable ASRC to 192 kHz.

Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar


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