iPhone;395072 Wrote: > And just what is that going to do? The digital section in the Duet is > powered off an internal switching power supply that is feed by the > external wall wart. Changing the external supply to battery DC versus > regulated DC is not going to clean anything up when there are internal > switching supplies! > > The only solution even remotely worth thinking about is to disable and > bypass the internal switchers and feed each voltage need from an > external power supply with separate regulated feeds of the proper > voltages. I took the time to do this using HP regulated power supplies > for each required voltage. There was no overwhelming noticeable > difference. Definitely not worth the time, effort, or bother and did > not bring the Duet anywhere near the Transporter! > > Additional to note beside the DAC chip being so much more superior in > the Transporter, the supporting circuits in the Transporter are > superior and the layout used gets so much more out of what is > available. No amount of modifying is going to get a Duet even close to > a Transporter (whole sections would have to be replaced and that's no > longer modifying). > > Again, if one wants a Transporter, one needs to buy a Transporter. I do > like the way the Duet and Classic sound with a high end DAC, but by the > time you get to the level of sound that the TP has, one has already > spend much more money then what a TP costs (and still can't do 24/96 > files native so again why bother?)! Just buy a Transporter.
I totally agree with all of this with the minor caveat that an SB3 + really good DAC can sound just as good as a TP. The cost will be at least the same. Anyway, the DAC is hardly the defining point of any system. Speakers are much... MUCH more important. Fiddling with the PSU of a duet receiver (or SB2/3) with the aim of improving audio quality is completely and utterly pointless, for the reasons that iPhone has stated. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - 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), Townsend Supertweeters, Kimber & Chord cables Outdoors: Boombox+Creative Sub (If I remember to turn it on...) ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=59855 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
