I have some audio components I wish to combine. A preamp board, power amp board, and a couple of other components. The preamp and power amp boards have integrated rectifiers and filters. Other components require a DC input. It is all 12 volts. I wish to use a Toroidal transformer. I have a power supply board comprising a rectifier and some nice quality filter capacitors. This will increase voltage by 1.4 times, so a 9-0-9 transformer would result in just over 12 volts after rectification.
Can I run the resulting 12v DC into the amplifier boards, even though these are designed for AC input direct from the transformer? My understanding of rectifiers suggests yes, as only half the diodes would send the current to the power capacitors. But I'm not sure...
Would this be detrimental to the sound quality? Would it all explode and burn my house down?
My only other option seems to be to use two transformers, 9-0-9 rectified to 12 for the DC components, and 12-0-12 for the AC amplifier board.
Any advice would be very welcome, but please try to keep it as simple as possible.
Thanks