Hi all, I recently bought a Cambridge Audio DacMagic 3 and felt like doing a few mods. The first area i'm attacking is the power supply, rectifying and regulation. Basically, there's 3 transformers, each with 15-0-15, all 6 rails go through a discrete diode bridge (crude 1n4004s), have a 100nF decoupling cap between rail and 0v, 3300uF 25cap per rail, and then finally onto positive fixed regulators, all of the 78xx variety. The 6 diode bridges and general seperation show some proper thought into the design of this DAC but i feel it could do alot better. Diodes: I was thinking of replacing these with Schottky ones such as 11DQ10's, however i don't know much about diodes, would ultra-fast soft recovery ones be better? or are these schottkys a bit old now? I've also been told to use 0.01mF-0.1mF snubbing ceramic caps across each diode to prevent the hard switching, is this only really for harsher diode bridges? Capacitors: Current ones look pretty cheap with no name written on them, I was thinking of replacing them with something like Nichicon HEs 5600mF or United Chemicon KYs, both aren't known for their audiophile quality but are very good caps for the price (I need 10 of them!) and have impedances of 0.012 (at ...) This sound okay? Is there anything i should think about with the ceramic decoupling caps? they're just general cheapo ceramic ones at the moment. Lastly, not sure about this, but the regulators are all the 4% regulation type, and i could be slightly anal and replace them with the 2% ones, there are great deal of them though I'm a beginner when it comes to power supplies, having read relatively few power supply tutorials and would greatly appreciate any advice you could offer. Thanks, Andy