iPhone;579063 Wrote: > And just exactly how did you arrive at the fact that "it yielded an > appreciable sonic improvement"? Especially when there are no > improvements whatsoever even from using a battery as the power source! > There are internal switchers inside the Receiver. Since the Receiver > has internal switchers and regulators, the external power supply > basically just needs to be the proper voltage and provide adequate > current. > > Testing was done with a battery, OEM, certified bench, and Linear power > supplies. Measurements were made using AudioDiffMaker and the graphs > were identical. Measurements were taken using an HP Measuring Receiver > and Network Analyzer, no differences. Extensive listening tests were > done with no differences heard. > > More importantly for the Touch, the internal switchers and regulation > after the voltage change is very well done so providing smoother > cleaner input supply isn't going to do a thing. The Touch has a very > good switching power supply. Lastly on this subject, let us have some > common sense. If the Touch or any other Squeezebox needed a better > power supply it would come with one. More over it doesn't make any > sense to spend even a dollar on a power supply of a $300 component.
++++++++++1 Please can we stop this? The stock Touch supply is fine. I've done similar (but less extensive) tests to iPhone and can neither measure nor hear ANY difference. The Touch and it's PSU are good enough - ESPECIALLY when used as a transport into an external DAC. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/XP) - TACT 2.2X (Linear PSU) + Good Vibrations S/W - MF Triplethreat(Audiocom full mods) - Linn 5103 - Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters, Blue Jeans Digital,Kimber Speaker & Chord Interconnect cables Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=82128 _______________________________________________ Touch mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/touch
