tragusa3 Posted May 6 Share Posted May 6 I've detected that one of my Khorns (early 80's) has a nasty buzz between 230 and 400hz. Not only is there a buzz, but also a noticeable volume difference. In other frequencies, they are pretty much the same, with no buzz. I swapped the K55v drivers and the problem followed the driver. I replaced the rubber gasket between driver and horn. Problem remained. I see that Crites has diaphragms available. Is that my likely path to solving this? I've replaced diaphragms before, so I'm not scared of the project, unless there is something uniquely challenging? I've read some forum posts that suggest sound quality improves with new diaphragms, being that the old are brittle by now. Anyone confirm this? Thanks for any direction or input. Quote Link to comment Share on other sites More sharing options...
babadono Posted May 6 Share Posted May 6 Maybe totally unrelated but.........I discerned a buzz in my 402 mid/high left side UG Jube speaker. This was at idle "no signal". It is masked when almost any level of music is played. I will not say that I never noticed it before but I am fine tuning and trying to squeeze the best performance possible and it was easy to ignore in the past. I tracked it down to the in-wall wiring going to the left speaker. The electrician that ran the wires must have run some power wiring along side the speaker wire for too long a distance. When I swapped out the in-wall speaker wire with externally run wire the problem is gone. Quote Link to comment Share on other sites More sharing options...
tragusa3 Posted May 7 Author Share Posted May 7 2 hours ago, babadono said: Maybe totally unrelated but.........I discerned a buzz in my 402 mid/high left side UG Jube speaker. This was at idle "no signal". It is masked when almost any level of music is played. I will not say that I never noticed it before but I am fine tuning and trying to squeeze the best performance possible and it was easy to ignore in the past. I tracked it down to the in-wall wiring going to the left speaker. The electrician that ran the wires must have run some power wiring along side the speaker wire for too long a distance. When I swapped out the in-wall speaker wire with externally run wire the problem is gone. I could see that happening. In my case, the problem moved when switching the compression driver to the other speaker. I think that rules out anything but the K55v itself. Quote Link to comment Share on other sites More sharing options...
babadono Posted May 7 Share Posted May 7 4 hours ago, tragusa3 said: In my case, the problem moved when switching the compression driver to the other speaker DUH! Sorry I missed that very important detail in your post. 1 Quote Link to comment Share on other sites More sharing options...
Toz Posted May 8 Share Posted May 8 You have nothing to lose by cleaning the voice coil gap as a first course of action. 1 Quote Link to comment Share on other sites More sharing options...
Toz Posted May 8 Share Posted May 8 Also make sure the bug screen, all screws, leads and label on the driver are tight and not vibrating. Quote Link to comment Share on other sites More sharing options...
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