I built my own linear supply for my Touch some time ago. I was trying to achieve two functions, reduce the unwanted noise going into Touch from the original supply and reduce the unwanted noise coming out of the supply and into the rest of my system. The later can be achieved quite cheaply with a filter costing a few pounds placed on the mains inlet to the Touch PSU and other equipment in your system. The two stage power supply seems to me like a bit of a gimmick. Two factors to consider Touch already has its own internal electronics to derive its precise voltage requirements from the original wall wart. If the final voltage going into Touch is as critical as made out (and I doubt it)it will only be an issue with long cable lengths. The normal way of eliminating this issue is to use a 3 core cable for the power lead. the 3rd cable is used to give the power supply its voltage sense feedback from the point at where it feeds into Touch. This way the stabilised supply will be at the point of entry into Touch eliminating any cable length issues.
I always qualify any comments on sound improvement by saying the sound improvements one may hear is a function of the resolution of your hi Fi system - and of course your own hearing. I did clock a good improvement using my own linear supply. mostly at the top end, better resolution and transient response. I have actioned Soundchecks mod to feed my Touch PCM and evaluating the result, again, initially at least I am finding further improvement. I am feeding Touch SPDIF into a Benchmark HDR into Hypex Class D amps into ATC SCM40 speakers Ianmac -- Ianmac Denon1940 DVD-A,Littledot CDP, Cyrus FMX tuner,Squeezebox Touch,Bencmark HDR DAC, Hypex Amps,ATC SCM40 speakers. ------------------------------------------------------------------------ Ianmac's Profile: http://forums.slimdevices.com/member.php?userid=20711 View this thread: http://forums.slimdevices.com/showthread.php?t=90742 _______________________________________________ Touch mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/touch
