jheis Posted October 12, 2007 Share Posted October 12, 2007 As you can tell from my sig line, I'm a big fan of B&K products. One of my amps, the ST2140 (140 wpc), however, is giving me some trouble. If I power it up manually (with the on/off switch) it works normally. However, if I use the 12V control signal from the preamp to turn it on I get a very loud BZZZZZT through the right channel. It only lasts for a couple of seconds and then the amp seems to work fine. I've tried swapping out the preamp & doing a preamp reset & the noise is definitely coming from/staying with the amp. I know simple solution is to just turn the amp on manually, but this is the bedroom system & it would be really nice to be able to turn the system on with the remote & not have to get up to turn on the amp. I also have a ST1400 II which seems to be internally identical (part numbers on the circuit boards are all the same) & I've tried swapping out the control voltage circuit boards & the on/off switches with no effect. Any suggestions? I've emailed B&K, but no response yet. James Quote Link to comment Share on other sites More sharing options...
nomad02rider Posted October 12, 2007 Share Posted October 12, 2007 James, While I am sorry to hear about your problem the best advice I can give you is to send it to me so I can diagnose it for a couple of months and I will get back to you. Quote Link to comment Share on other sites More sharing options...
jheis Posted October 12, 2007 Author Share Posted October 12, 2007 Thanks for your kind offer. Too bad you're so far away.... James Quote Link to comment Share on other sites More sharing options...
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