Klh model 20's
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boreas
"If it sounds good, it IS good." E.K.E.
And that about sums it up. They're quite good speakers with a lot of fans here.
It used to be conventional wisdom to re-coat the cloth woofer surrounds as a matter of course but a: unnecessarily slathering some substance or orther onto the surrounds can seriously reduce compliance and, therefore, degrade the performance and b: too much information out there as to the correct material to use. Some of it seems to be fine (when needed) but some doesn't.
John
guest117
Active Member
any specific suggestions on the recap?
jamesrpm
Active Member
And I found the other half of that system , turntable ,fm only without speakers. Is sitting on the counter now for lack of time to check out blown fuse issue.
cableguy2
Well-Known Member
Getting back to speaker coating the cloth, what do most people use. I would think you would need something to make them somewhat less dry, but what do you use that doesn't rot them faster?
My disclaimer is I won't hold anyone liable for any suggestions. I probably won't do it anyway.
My disclaimer is I won't hold anyone liable for any suggestions. I probably won't do it anyway.
i just got a pair of those myself.
i recapped them...there's one big cap in there that goes to both the woof and tweet. i got close on the values. Made a big difference in the ( previously ) distorted high end.
My cloth surrounds still have their rubber in good shape...leave well enough alone.
i recapped them...there's one big cap in there that goes to both the woof and tweet. i got close on the values. Made a big difference in the ( previously ) distorted high end.
My cloth surrounds still have their rubber in good shape...leave well enough alone.
markshan
Sir Thrift a Lot
I used rubber cement. It seemed to help (highly scientific, huh?).
boreas
"If it sounds good, it IS good." E.K.E.
KLH used a mixture of butyl and toluene. Other DIY materials include siliconized latex caulk thinned with water, Aleene's Tacky Glue, Permatex Form A Gasket, etc.
It's not so much a question of rotting the surrounds but just adding too much material, making the surround too stiff (uncompliant).
John
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guest117
Active Member
klh 20's
in any event the cabs are beautiful !!! the grain on in the wood is full fancy grade - lots of depth , i think i'll be hangin onto these for a while -
OH yea - they sound amazing also , i never knew these older speakers were so capable , in my late twenty's i passed up all types of vintage speakers from my brother in law that worked in a high end audio shop in New Haven , Ct.
AR , KLH , JENSEN , ... i thought i had to have the latest thing from Boston, Polk etc .... now in my late 40's , i have to admit i love the older speakers a good turntable and a tube amp - the sound , the look , the quality , the heft !!
anybody feeling the same :yes:
in any event the cabs are beautiful !!! the grain on in the wood is full fancy grade - lots of depth , i think i'll be hangin onto these for a while -
OH yea - they sound amazing also , i never knew these older speakers were so capable , in my late twenty's i passed up all types of vintage speakers from my brother in law that worked in a high end audio shop in New Haven , Ct.
AR , KLH , JENSEN , ... i thought i had to have the latest thing from Boston, Polk etc .... now in my late 40's , i have to admit i love the older speakers a good turntable and a tube amp - the sound , the look , the quality , the heft !!
anybody feeling the same :yes:
Using the wrong material is just as bad as using "too much"! Unless you have the ability to measure the results, it is a crapshoot.
Ebay's "Vintage AR" is now carrying the proper butyl/toluene compound. It is thin, and will not affect compliance. I have some available as well.
Roy
