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chapin99

H00 SRB 1989 klipsch Heresy buzz/hum -slight

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Hi, all. It has been a while since I have been on our forum.  I have a vintage quad system using LaScala’s for front channels and Heresy’s (not sure model, so posted what I saw on back of speakers) from 1989 as rears. They sound great, but today when I was troubleshooting another issue (which was user error in that I had not changed the the input on dbx 200x boxes) I detected a slight buzz in both rear channels when I put my ear to the front of the speakers. Not noticeable with music playing, but troublesome to ponder. I thought it my be my sub from HT system (separate setup), but I unplugged it and still have issue. It is in both speakers, but not in front channels.  I do not crank these and the rears are usually less loud than the fronts. Any idea what is going on? Thanks for any help or advice! I like to take care of things, so hope to figure out the issue. I love my klipsches, by the way, so hopefully on this forum people appreciate these speakers and don’t disparage them (it appears not everyone is a fan- too bad for them).  My vintage system is comprised of Sansui 9001 receiver, Q8 player, 2 dbx 200x switcher box things, 2 dbx SNRp1’s, and technics  demodulator. Thanks again for any insight.

Laura

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Hi, all. It has been a while since I have been on our forum.  I have a vintage quad system using LaScala’s for front channels and Heresy’s (not sure model, so posted what I saw on back of speakers) from 1989 as rears. They sound great, but today when I was troubleshooting another issue (which was user error in that I had not changed the the input on dbx 200x boxes) I detected a slight buzz in both rear channels when I put my ear to the front of the speakers. Not noticeable with music playing, but troublesome to ponder. I thought it my be my sub from HT system (separate setup), but I unplugged it and still have issue. It is in both speakers, but not in front channels.  I do not crank these and the rears are usually less loud than the fronts. Any idea what is going on? Thanks for any help or advice! I like to take care of things, so hope to figure out the issue. I love my klipsches, by the way, so hopefully on this forum people appreciate these speakers and don’t disparage them (it appears not everyone is a fan- too bad for them).  My vintage system is comprised of Sansui 9001 receiver, Q8 player, 2 dbx 200x switcher box things, 2 dbx SNRp1’s, and technics  demodulator. Thanks again for any insight.
Laura

The speakers would not make noise on their own so it’s got to be your electronics.


Sent from my iPhone using Tapatalk

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Thanks a bunch! I emailed with Bob Crites today and he said the same. Moving one speaker (not on purpose, but to try out another pair) cured it, but the other still has tiny, tiny hum/buzz. I will troubleshoot more over time when I swap out some components, but meantime, Bob says it won’t do any damage and you do have to have your ear right up touching the grill cover piece to even perceive it. Speaks to the efficiency. The best news it that I am going to get Bob’s crossovers and a titanium piece to put on and I am thrilled to do this.  I told him I can follow directions, so wish me luck! I will certainly take my time and keep his pictures up on my ipad when I do this. And, I do know that all this vintage equipment has its quirks and that the little hum/buzz will get worked out. Thanks for addressing my post, Tony.

 

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Electronics aging?

 Most electronics have some slight noise to moderately loud (masked by music) with high efficiency speakers.  Also a thing to look for is where the cabling is and what is plugged into the circuit.  All this can pick up interference.

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Thanks Peter. Yes - electronics are quad era, though many renewed over time. I will check cabling as well. Thanks for further insight.

Laura

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