popping noise when turning on amp/preamp


i just hooked up a bryston bp 16 preamp and a bryston 3b sst amp to my system that i bought on audiogon.

i noticed two things.

1. when i turn the amp on or off there is a fairly loud popping noise.

2. when i'm not playing music, there is a noticeable hum/buzz coming from my speakers. if i put my ears close to the speakers, i can hear it when music is playing as well.

i have neither of these issues when my cambridge 840 v2 integrated amp is hooked up.

are these issues to be concerned with, or is it just the way bryston products work? i find the popping to be startling, and the buzz unacceptable.

thanks!
tanglewood

Showing 2 responses by tanglewood

thanks. i thought of trying just what you suggested after i started the thread. using the cambridge as a preamp, i heard no buzz or popping. so i figured it was the bryston preamp.

but then i decided to use the same interconnects i was using on the cambridge on the bryston. that took care of the problem! in other words, the interconnects were the culprit.

interestingly, the interconnects i was originally using on the bryston were more expensive. the interconnects that ended up sounding good were cheapo ones you get with any stereo system.
thanks for the info mezmo. as i stated in a post above, the problem was solved by changing interconnects. however, there may still be a slight grounding problem, as there is a very slight hum in the speakers. i have to put my head right next to the speaker to hear it.