At last a thread about power supplies where I feel I might not get shot on site for sharing my findings!
Last year I put together a DIY linear power supply (Power 1 5V/3A unit as recommended on various other threads) to try this out... After running it for over a month and totally believing the sound had seriously improved, I tried the A/B test (not blind) between the existing switcher and the new linear. For reference I completely removed the switcher from the supply when it wasn't in use. As the other poster pointed out having to wait for the SB3 to boot makes it difficult to quickly switch, but after lots of switches I couldn't tell any difference (and I really wanted to hear one - I was certain before the test the linear was best). Either the power supply made such a small difference I couldn't hear it, or my system is to poor to resolve it. My system comprises of: Speakers - Kef iQ5 Amplifier - Arcam A65 plus Interconnects - QED Qunex 3 Speaker Cable - QED Silver Anniversary Bi-Wire The final nail in the coffin for the linear supply is the fact it gets quite hot (even outside any enclosure) and makes an audible humming sound all the time (very quite but it bugged me). I'm now back to the standard switcher and I'm very happy. Just a thought, there has been lots of comments about the bad quality of mains power supply in various areas of the US (New York has been mentioned as being rather bad in another post), could this influence the difference between linear and switching units? -- mick_w http://freespace.virgin.net/mick.webb/ ------------------------------------------------------------------------ mick_w's Profile: http://forums.slimdevices.com/member.php?userid=6526 View this thread: http://forums.slimdevices.com/showthread.php?t=31758 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
