JohnSwenson wrote: > 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.
The question was why the stock psu had better piano attack, if I read your explanation correctly you describe why the stock psu would have worse attack by the introduction of high freq noise. Am I reading that wrong? ------------------------------------------------------------------------ m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850 View this thread: http://forums.slimdevices.com/showthread.php?t=82648 _______________________________________________ Touch mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/touch
