RB-1080 has a buzz on the left channel

[seteven100]

yes it does.

i know its the power amp because if i turn the power amp on it buzzes then if i turn the pre amp off , it stills buzzes.

what could this be? it is a relativity soft buzz but still anoying

anyone know what this could be? and how much would it cost to get fixed? i live in australia.

thanks

[seteven100]

oh, this is the first time it buzzes, ive had it for years without a buzz

[Glen B]

Does the amp buzz with nothing connected to the inputs ? Could be a failing main filter cap on the left channel.

[seteven100]

hey, for some reason there is no buzz anymore, i haven't disconnected anything from the wall, everything is the same. wonder what this means?

[Glen B]

If you turned the preamp off and still had the buzz in the one channel, one possibility could be a loose fitting interconnect. Check your IC between the preamp and amp. If the outer sleeve of an RCA plug is not making firm contact with the socket, that might cause a buzz or hum. You provided little information, so just clutching at straws here. If the buzz does not return, be thankful and don't lose sleep over it.

[seteven100]

Thanks Glen B

[seteven100]

hey me again

for some reason my Rb-1080 had a buzz again. i pulled the RCA inputs out and plugged them back in, it stopped buzzing.

anyone know whats happening here?

cool
cheers

[Glen B]

Wiggle the interconnects and see if the buzz returns. Make sure the outer leaves of the RCA jacks fit tight around the sockets -- pinch them inward slightly if needed. Also try a different pair of cables. Again, it could be bad or improperly fitting interconnect.