Ive just put together an amp / preamp combo.Those are DIY amp and preamp?
Diy helph
Hi,
Ive just put together an amp / preamp combo. Every thing sounds great but it has an audible hum when the amps input cables are connected to the preamps outs, the hum is not effected with the volume, its a set volume.
The weird thing is if i connect either a left or right channel only via the cable theres no hum?
Its only when both channels are connected.
Anyone got any ideas?
Regards
Mike
Ive just put together an amp / preamp combo. Every thing sounds great but it has an audible hum when the amps input cables are connected to the preamps outs, the hum is not effected with the volume, its a set volume.
The weird thing is if i connect either a left or right channel only via the cable theres no hum?
Its only when both channels are connected.
Anyone got any ideas?
Regards
Mike
- ...
- 13 posts total
Agreed with @erik_squires that diyaudio is likely to be of more help with this issue. Perhaps this thread is somewhere to start: https://www.diyaudio.com/forums/diyaudio-com-articles/163575-audio-component-grounding-interconnecti... When dealing with ground loops it can be useful to just unplug everything and try to eliminate possible sources. Do you have to same issue if the pre is taken out of the loop? Do you have equipment plugged into multiple outlets? Good luck, ground loops can be a bitch... |
Have eliminated about 80% of the hum so far . Have a look at this PDF file http://hifisonix.com/wordpress/wp-co...ound-Loops.pdf Cheers Mike |
- 13 posts total