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Refurbishing a pair of KLH model six speakers

I just picked up a pair of KLH model six speakers. Hooked them up and the woofers seem fine but both tweeters dead in the water. Found manual on the web but only had four pages. Question is do I want to spend a lot of $ fixing tweeters? ans. no. I understand that the caps go bad and that might be the problem. If so, where do I get the right caps and how do I get to the crossover to replace them? Only reason I'm asking these questions is that these speakers bring back memories.
fhamel
thorman
1,262 posts
 
Usually plenty of part etc. on Ebay..I bought a second pair for $1 and made a pair from two pairs of speakers..They look and sound great..Crossovers were fine in both pairs..I just flipped the tweeters............
fhamel OP
2 posts
 
Thanks for the info. I took the woofer out and poked around inside. Didn't see any bulging caps cause the crossover is all epoxy overed. I did take the tweeter out and put power to it and it works. There is a cap that is held down by a bracket and one of the leads go to the tweeter. Is this the cause?
thorman
1,262 posts
 
If I remember correctly there is a black wire and a red wire ( pig tailed ) going to the tweeter..Red is hot/Black is neutral..You can also check the wire connection coming from the woofers that I think also ( Operating on memory ) are secured by a wire nut fastener..Its possible that the connection needs to be secured..Its not very likeley that both speakers have bad wire connection..If only one speaker was not operating I would think it would be possible but being they both don't work,it could be the crossover..
fhamel OP
2 posts
 
Both tweeters are working when hooked to external source. I need two crossovers in working order. does anybody have an idea where I can score them. Tried e-bay, no go.
trigoon
3 posts
 
Hi Guys,

I have a pair of Sixes I bought back in the early 70's from Tech HiFi a popular auidio boutique that started in Canbridge, Mass. Originally at MIT.

I replaced both my tweets as the originals were prone to failure when played at high volumes. I replace the tweets with high end Titanium domes and while at it I redesigned the cross over to cross at a slightly lower frequency to take full advantage of the sweet sounding domes in the midrange. I kept the original woofers.

I replaced the cap with Music caps and the coil too with an oxygen free Cu wire. I used silver solder, no wire nuts, and eliminated the resistors and switch, I replaced the thumb screws with Gold Bananas. Less is more.

Hey its 50 year old technology...the Sixes sound sweet especially on tube equipment which they were designed for. Legendary Kloss.
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