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JKent

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Everything posted by JKent

  1. or maybe a physically smaller tweeter, like the HiVi T20-8 (4-20K)? Lots of options I suppose. I did build some cheap supertweeters but they were single-driver, not arrays.
  2. I wanted to reply to this old thread but it's archived: https://community.classicspeakerpages.net/topic/8325-microstatic-tweeter-array-revisited/ In it, Carl asked "Has anyone bought and used a Pyle HF Piezo horn tweeter array sold by MCM? The 6 tweeter array is similar to the Microstatic design, only this one has 4-27 kHz & 97 dB eff". I should have read that more carefully. I just bought a pair. They're inexpensive and seem well made but they're really big and that 97db efficiency makes them way too loud for our inefficient ARs. I could rig up some L-pads but size and PA system look just don't work with ARs. btw, in that same thread Steve mentioned the MicroStatics being too wide to fit atop AR-4 series speakers. I checked and they are actually 1" narrower (4x is 10-1/8" wide, MicroStatic array is 9-1/8"w). I still like the MicroStatics but seeing what folks are asking for them I was thinking about selling mine. But I don't think the MCM unit is a good replacement.
  3. I "had" a pair of 2a's. The grille does come off but not easily. There's glue and, IIRC, nails. But if you do get the grille off you can get inside by removing the woofer and maybe at least figure out where the terminals are. I suspect that Gene is right and they weren't moved, just covered up.
  4. JKent

    OLA refurb

    Ah. Missed that. I was looking at the OP’s info. Yeah—changing the surrounds from foam to rubber will very probably affect the sound. I just edited my previous post to remove the erroneous assumption. Thanks for pointing that out.
  5. JKent

    OLA refurb

    There is some disagreement on this subject but shimming is the only way to ensure the VC is centered. AND it has the added benefit of allowing you to position the cone up or down as you work on the surrounds. My advice: Always shim.
  6. Could that whole back panel be removable? I’d try prying it off. From the pics it looks like a frame of maybe 1/4” walnut around the new panel. If you’re lucky it may be attached with velcro. Just a thought.
  7. Hey Fly Welcome to CSP. First, if they sound good I'd say your $20 was well spent. But these are not classic KLH speakers and not even "real" KLH. They look to me like the 9500 series. Or possibly 3 pieces from the 6-piece 9900. If you google KLH 9500 you'll find pictures. KLH was originally an American company based in Cambridge, MA in the late 50s/early 60s. In the mid 60s it was sold to Singer and continued to make good products. In the late 60s (I think) they were sold to Kyocera and produced some good radios. But after that the nake "KLH" was sold (I forget to whom--think it was sold a few times) and they produced a bunch of mass-market products built in Taiwan. That's where your sub/sat setup comes in. Recently the name was sold again, this time to an American company that's trying to resurrect the glory days. The new speakers are very expensive. So enjoy the speakers and if you ever come across any KLH (or AR, Dynaco, Avid, etc classic speakers made in the USA we're here to help. Kent
  8. Thanks for the kind words. I personally don't think it's a big deal. I use double bananas with the original binding posts and they work fine. But new 5-ways such as those Larry used certainly look nicer. Or you could go a little nuts and get some nice Cardas binding posts. No argument from me. And the 91s certainly deserve first class treatment IMHO. Good luck with the resto.
  9. Good to know. I always found the Erse film caps to be a good buy. Here's my 91 xo.
  10. Robert Understandable. You can list them "as is" in the For Sale section of this forum. Tell people where you are and how much you want. The service is free. Kent
  11. Right. It also seems upside down. The woofer is usually on the bottom when floor placed. Someone did a lot of quality woodworking on these. Looking forward to you solving the mystery. Keep us updated.
  12. You’re right Gene. That’s why MicroStatic sold those add-on supertweeters specifically for AR and KLH.
  13. And it is. I believe the 2-ax “mid” is a tweeter and the driver in question is a supertweeter.
  14. Hmmmmm. Roy said the tweeter crosses over at VERY high frequency. Bill said the tweeter output is woefully inadequate. I know my EARS have become woefully inadequate at very high frequencies as I age. Maybe it’s not the tweeter 😉
  15. I had noticed scorched, burned or cracked resistors in Fives and Twelves. Based on that I always replaced all of the 5w resistors with 10 or 12w. RoyC, who knows far more about crossover design than I isolated the culprit as the 5 ohm resistor in the woofer circuit. I’m away from home now so don’t have access to my notes or photos. Maybe Roy will chime in here. He recommended 15 or 20 watts for that 5 ohmer. I no longer advocate replacing all the resistors. They don’t normally go bad unless they are too weak for the job and that would apply to the 5 ohm 5w woofer resistor.
  16. Only the woofer resistor must be replaced and that should be 15 or 20 watts.
  17. http://www.millersound.net call first and ask if Bill can fix it.
  18. Thank you! This is absolutely excellent. It should be pinned to the beginning of the KLH section and/or put in the Library. I'v done a lot of these Model Fives. Wish I'd had this reference before 😀 I'm on the road and may have specific comments later. Roy and I have been going back and forth about the resistors and maybe he'll chime in with his insights. Kent
  19. His in box may be full but he should see this post.
  20. Hi Mark Please send a PM with your email Kent
  21. JKent

    KLH Model Twenty

    Cool! Love the old trucks. I'll have to look into JRiver--never heard of it before.
  22. JKent

    Model 12 control knobs

    A lot of info in this thread on rebuilding the contour boxes:
  23. Unlike your search for knobs you're in luck here. Those were called the "Twelve point five" drivers and KLH used them in a LOT of applications. They were only used as mids in the Five and Twelve speakers but they were used full-range in the Eight, Thirteen and Twenty-One radios. They were also used full-range in the compact systems such as the Eleven and Eleven-W and in some compact speakers such as the Fourteen A and B, Fifteen, Nineteen and others. Any 4" KLH driver from that era that looks right is probably right. Kent
  24. JKent

    Model 12 control knobs

    Good luck with that. They're rare. I thought I found some once but they were same style, just much bigger . I wound up using some stove knobs like these https://www.tubesandmore.com/products/knob-davies-1550-daka-ware-large-skirted-pointer. Just check the size! Kent
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