Hi all,
I am adding a few controls to a slave power amplifier that will be used as a subwoofer amp. I have added a Powercon in, RCA in, Speakon Out, on of switch, volume pot (passive). I will experiment with an active small chip based pre amp (5534 Op amp).
My question is how careful should I be with shielding AC internally, I will twist the L,N where they run in parallel but I will be feeding AC to the main power transformer of the power amp, a small 12V DC board that will drive the quiet fan and potentially a small pre amp. space is limited and I just wanted to check om best practice and advice omn the principles of wiring 230V AC internally (It will be chassis earthed)
I could add some braid and or foil then heat shrink in a few places if necessary etc
I am adding a few controls to a slave power amplifier that will be used as a subwoofer amp. I have added a Powercon in, RCA in, Speakon Out, on of switch, volume pot (passive). I will experiment with an active small chip based pre amp (5534 Op amp).
My question is how careful should I be with shielding AC internally, I will twist the L,N where they run in parallel but I will be feeding AC to the main power transformer of the power amp, a small 12V DC board that will drive the quiet fan and potentially a small pre amp. space is limited and I just wanted to check om best practice and advice omn the principles of wiring 230V AC internally (It will be chassis earthed)
I could add some braid and or foil then heat shrink in a few places if necessary etc
I have fitted the RCA, Volume adjust, mains and speaker out at one end and the on off at the other where the fan is fitted, also fitted a cover for the main amp board
a picture of the 12V board to drive the fan which its 230V AC fed
a picture of the 12V board to drive the fan which its 230V AC fed