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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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Hi,I had been sitting on a not at all bad pair of 1960s-1970s KLH Model 20 loudspeakers, which was their top-of-the-line from about 1965 on. But I am losing my workshop space, and so I have put them up for sale in various places.
Regardless of that, I want to share the concept I worked out for re-using the cabinets with modern drivers, and making it a 3-way.
This concept might require a new front panel or at least some decent router skills, so, either you are good at that, or you have to hire a woodworker.
(1) Morel makes a "Twee-Mid" module (TM4055): A 2-inch dome midrange and a 1-inch dome tweeter on a shared round faceplate 5.64 inches in diameter.
https://www.parts-express.com/Morel-TM4055-8-2-Midrange-and-1-1-8-Tweeter-Speaker-Plate-287-038?quantity=1
The module does not include any crossover function.
(2) Parts Express also has a Acoustic Research 12100330 Replacement Woofer 10" that might be a good fit, and it is designed for sealed enclosures, and how special is that?
https://www.parts-express.com/AR-12100330-Replacement-Woofer-10-299-423?quantity=1
(3) If you can't design and build your own crossovers, Solen in Montreal will design it for free if you pay them to build them. There are also other design/build crossover options.
The photos are of the pair I am selling in various places. Just to show that I think my substitutions make a lot of sense.
In any event, I hope someone with the time and energy builds this, and lets us know how it sounds!
John
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Topic - My idea for a TOTALLY renovated KLH 20 loudspeaker - John Marks 12:42:53 10/27/23 (16)
- EWW-KAY, the KLH 20s will go to "Savers" today. - John Marks 06:50:46 11/2/23 (0)
- RE: My idea for a TOTALLY renovated KLH 20 loudspeaker - fstein 09:07:16 10/28/23 (3)
- RE: My idea for a TOTALLY renovated KLH 20 loudspeaker - hahax@verizon.net 21:15:35 10/28/23 (2)
- Well it really was not a technical marvel with tight tolerances - Edp 08:37:07 10/29/23 (1)
- *like* (nt) - mhardy6647 10:51:14 10/29/23 (0)
- RE: My idea for a TOTALLY renovated KLH 20 loudspeaker - fstein 09:06:37 10/28/23 (0)
- RE: My idea for a TOTALLY renovated KLH 20 loudspeaker - tomservo 06:19:44 10/28/23 (0)
- RE: My idea for a TOTALLY renovated KLH 20 loudspeaker - hahax@verizon.net 20:46:51 10/27/23 (6)
- RE: My idea for a TOTALLY renovated KLH 20 loudspeaker - acres verde 11:11:07 10/30/23 (0)
- in fairness, the 'acoustic suspension' alignment is quite forgiving of mismatches - mhardy6647 05:02:47 10/29/23 (4)
- Yes, much more so than a vented alignment - Brian H P 16:24:37 10/30/23 (0)
- RE: in fairness, the 'acoustic suspension' alignment is quite forgiving of mismatches - hahax@verizon.net 18:50:56 10/29/23 (0)
- Thank you for contexting the naysaying! - John Marks 06:27:20 10/29/23 (1)
- speaking of restomodding a sealed box loudspeaker... - mhardy6647 11:14:34 10/29/23 (0)
- The KLH 20 was the companion loudspeaker for... the KLH 20 compact stereo - mhardy6647 18:44:44 10/27/23 (1)
- RE: The KLH 20 was the companion loudspeaker for... the KLH 20 compact stereo - Story 04:50:29 10/29/23 (0)
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