bass in a dac is a somewhat complicated question. it can relate to multiple factors, including rack interface and power cords. and three dacs I’ve owned were quite high resolution, two with what i’d call ’hyper-detail’.......the Trinity dac and my current MSB Select II. that hyper detail did nothing to restrict bass. likely they did allow for super articulation. possibly some dacs do a bit of ’rounding’ and that can be perceived as having a ’heavier bass. but is that an artifact? or reality?
http://www.msbtechnology.com/dacs/select-features/
but my experience with my current dac, the MSB Select II, really hit home on how much the power supply can affect the bass and the overall sense of authority and ease in the bottom octaves. when i first purchased the MSB in June it had only a single power supply; which powered both the analog and digital circuits. then in August i added a second power supply. i had to send in my dual single box power supply and the manufacturer used the case of that dual unit and added another case and put a single power supply in each; one box for the analog circuits, and one for the digital circuits. I now had two power supplies each with it’s own power cord.
wow!!
the effect on the lower octaves and overall ease and authority was astounding. a huge difference. nothing else changed. the level of detail increased with greater expressiveness and overall levels of information was better.....lower noise.....greater nuance.
is this surprising? maybe not. we know that power supplies are a significant part of the overall performance of all electronics.
the bass in my dual power supply MSB Select II now compares favorably with my vinyl and Studer A-820 RTR deck bass. those are my references.