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In Reply to: RE: Electro-Voice Regal lll posted by Paul Eizik on January 24, 2017 at 08:14:20
PaulI measured both L-Pads. The low readings are 0.2 and 0.7 ohms. The high readings are 104.2 and 103.8 ohms. Both are disconnected.
Craig
Edits: 01/26/17Follow Ups:
Measured my new L-Pads 0.1 to 7.5 ohms
Craig
This starts to explain some of the mystery of why the parts values n the original crossover didn't seem to make sense, and the nominally 100 Ohm L-pads seem to account for the missing Ohms to match the parts. As to why they did it that way I can only speculate. In the page of the 70's EV catalog I posted here they were expecting that DIY'ers would use a "building block" approach which would mean starting with a "full range" woofer in a suitable box which would be made. Later you would add a tweeter for some highs. After you had that awhile you would add a midrange horn for "presence". The mid horn and tweeter were presented as add on tone controls.
As you'll be nearing a time when you can compare the new crossover to the old one, it might be time to move this up page to a new thread, as we're stretching the limit of how far we can go to the right down here. Hopefully the speakers sound better!
Paul
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