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In Reply to: RE: What to do with a pair of KLH model 5s? posted by airtime on December 09, 2014 at 07:38:59
Do you think that modification will bring these speakers to the level of what I could get in my price range for something newish?
Thanks for your thoughts.
Nate
You can't cheat an honest man, never give a sucker an even break or smarten up a chump -- W.C. Fields
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They will be different. Whether they are better or worse will depend on what you like, but modern an vintage speakers have different attributes. I lot of the inmates here prefer the sound of vintage, and wouldn't use modern speakers if they were given to them. Others in the speaker asylum think that the vintage speakers are old junk.
My advise would be to update the KLH, give them a full audition, and then audition some new speakers.
Airtime gave you good advise about updating he speaker. I would add that you should reseal the surrounds. They don't break like foam surrounds but they become leaky. Do a search. Inmate Bold Eagle has the most experience and, IMO, the best solution. He re-sealed the surrounds with GE kitchen and bath silicone. You should get noticeable better base with this.
Other mods you could do are to put binding posts (not to expensive) and rewire (again, I would not throw big bucks into them). Lastly, you could also experiment with felt around the tweeter. I haven't tied it, but I suspect it would help with those sharp ridges.
They will perfume best with tube gear, but if you want to run them with a sand-amp,, Bold Eagle has a resistor trick that will make them sound their best.
Dave
I did the surround reseal back when I first got them, my dad has a pair of KLH 6s and was wise to that trick.
I love the way these speakers sound, I just really like completely invisible speakers with a very clear soundstage like magnepans. I don't really notice or care that they don't quite have the high end of modern speakers but I do miss the soundstage. I'm being very picky because these are really pretty good at that, just not as good.
I wouldn't mind going to tubes, I just don't know enough about them. I've often considered DIYing a Hagerman preamp but don't really know where to go for a power amp. I spose I have some homework to do. My preamp is a very fussy but wonderful sounding Yamaha C-4. Perhaps that should be my first stop.
You can't cheat an honest man, never give a sucker an even break or smarten up a chump -- W.C. Fields
Judicious use of felt under the grill cloth could help that imaging. Those are some of the most highly evolved cone tweeters in the business. If you want to really go hog-wild, you could put the tweeter in an external box, flip the speaker so it is woofer high and time align the tweeter. However, I am speaking totally on theoretical grounds. I have never done anything like this, and actually I think it would be a bit extreme.
For tubes, Asylum sponsor Uncle Ned has some nice updated Dynaco kits that don't need tubes made of unobtainium. (See link.)
Dave
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