KLH Model 17 woofer

[donw23]

One of my KLH Model 17 woofers stopped woofing. Any thoughts on how to troubleshoot this?

Thnx

 

[GD70]

Could be bad caps. Try connecting the wires from your receiver directly to the woofer. Keep the volume low. Usually the tweeters don't work because of bad caps.

A rule of thumb with any vintage KLH, caps should be replaced and the woofer surrounds resealed with the seal compound vintage-ar sells on the bay.

If the woofer is shot, there's a bunch listed on the bay as well.

Glenn

 

[sax6]

Stop working ? in an instant or gradually ? In an instant, you have a connector
to the woofer that had cut off.

Gradually... mmmm worse case, voice coil was almost shot and then a strong surge of current made it die.

Keep us informed.

 

[donw23]

Well, one evening I had cranked them up to about 85 watts through one song and they handled it pretty good. The next day I fired up the receiver and one woofer was dead, nothing, kaput. It was an ex-woofer. I guess the old guy just couldn’t take it.
I pulled the woofer out and connected it directly and got nothing. I bought one on ebay and re-sealed it and I’m back in business. I probably won’t go that loud with them anymore, that would be like me running a 10k, I’d keel over too.
Thanks for the advice guys.