I find the headphone amp and the direct outs to be lower than I would like. I have Sony MDR-7506, Sony MDR-7509 and it's fine for those. But for my Sennheiser HD650 headphones it's a little low. And the direct out I run to mono to an Avantone mix cube and it's a bit lower than I would like. I have to turn up the amp on the cube almost to max.. but the sound is still clear. If you read about how the Balance DAC/ADC work, they are at full volume for optimal sound quality and the knobs are analog and only lower the signal.
Last edited by qidelephant; 2013-09-13 at 02:59.