One of the big differences in My PS design VS the switcher and with many other linear designs is the major reduction in noise sent down the AC mains, so it may be less noise in the AC going to a power amp rather than the signal from the Touch.
The noise that this design gets rid of can cause IMD with high frequency components of your audio signal. For your piano attack this would cause a "sprinkling" of high frequency components around the attack, which you very well might hear as a "softening" of the attack. As was mentioned above this might actually be happening in the power amp rather than the Touch itself. You have two choices now: go back to the way it was if you like that better, OR realize that with the new supply things are theoretically better and work on the rest of the system to improve it's transient response. The latter is what I took up about 10 years ago. I realized that really good transient response was what was missing from my system and started tracking down what the culprits were and how to fix them. The result is that I have now built all my own speakers, amps, preamps, DACs, power cords, interconnects etc. The current system now has exceptionally good transient response and sounds amazing. But it wasn't easy to get there. Along the way I found that a lot of audio equipment compresses transients, it seems to be something that a lot of designers kind of sweep under the rug. And it's not something that most audiophiles are prioritizing when selecting components so the designers don't feel a need to really spend a lot of effort on. BTW I'm working on a new speaker design right now that is fairly small, inexpensive, easy to build and has very good transient response, I should have the prototypes built in a couple weeks. John S. ------------------------------------------------------------------------ JohnSwenson's Profile: http://forums.slimdevices.com/member.php?userid=5974 View this thread: http://forums.slimdevices.com/showthread.php?t=82648 _______________________________________________ Touch mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/touch
