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LWE Speakers Info Needed

Todd MacDona

Todd MacDona

AK Subscriber
Subscriber
Trying to hook up a pair of LWE Acoustron speakers. They have a 6 pin jones cinch plug on the back. I have the cable which plugs onto the pins, but I tried it and the sound was very weak, receiver started to smell funny so I unplugged and disconnected. The plug has 2 segments of lamp cord coming out of it. Total of 4 wires. I would have thought it needed 6 for the full effect of the design, but maybe the - are shared some how.
How can I test it and run it (without the negative feedback loop) to make sure it is operational? I probably can still get pics if anyone needs them.
 
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Like this? Seems this question was asked somewhere else, too.

GeeDeeEmm

860210-vintage-pair-of-lwe-1-acoustron-speakers-made-by-louis-w-erath-in-usa.jpg
 
Your pic is nice, but doesn't really answer any questions or help. Do you have a link which might shed some light?
 
Thanks for the link, missed that one in my searches. Will try again with the speakers, hopefully the receiver I used still works.
 
Two of the pins are normal speaker inputs, two are for the feedback circuit, and two are unused.

If you happened to connect the receiver's power outputs to the speaker's feedback outputs, that would not be a good thing.

Really to get the best out of these you have to wire in those feedback lines to the right spot inside the amp. There were instructions published for a bunch of amps and receivers of era (ca. 1970). Today it's kinda tricky unless you know your amp circuitry inside and out (which I don't).

There is a Yahoo LWE User's group where you can download some documentation on them.

So what receiver do you have?
 
I spoke with Mr. Erath a few years back myself while trying to hook up a Sansui AU-517 to my dad's LWE 1A's. Never did get them sounding right but the crossovers have ancient caps in them, which you can't hardly get to due to the epoxy. That project ended up on the shelf. The Sansui did get feedback lines installed per LWE's advice. We put 1/4" jacks on the back of the amp for that and the amp can still be used in normal mode.
 
For testing purposes it is a cheap Denon. If the speakers work, then I would like to hook them up to a Mcintosh 6100.
I tried to join Yahoo and sign up to the group there, but kept getting error messages. I will try again as I think it will be my best bet for info regarding the feedback hookup.
 
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