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Multi-Way Conventional loudspeakers with crossovers

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Old 7th July 2013, 05:43 PM   #11
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Location: New England
What I have is a .doc file. It's just one page with two pics showing the arrangement of the xover components and the input side of the board.

what you wrote about the behavoir of rheostats in a xover may be true, but Acoustic Research used these for years in AS speakers, that at the time, had the majority of the loudspeaker market.
"It's all about the music!"
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Old 7th July 2013, 09:24 PM   #12
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Please don't misunderstand me; I wasn't criticizing the rheostat. As for the AR series, yes, just about everyone used rheostats simply because they were cheaper and they worked quite well. That AR had the largest part of the market wasn't due to what was inside the box as few knew or even cared. They sounded good, despite their inefficiency but they could ba placed just about anywhare, ergo the name, bookshelf speakers.
I'm not one of those audio fanatics who have fallen prey to the hype around $300 RCA interconnects, exotic speaker wire at $1000 a yard, nor fancy single ended 30w tube amplifiers costing $7000 or more each, not to mention that one usually needs two for stereo as most come as monoblocks.
While I've designed several elaborate passive and active filters, I can't say what effect they may have had on the sonic quality of the speakers. Regardless of what a lab microphone "hears" and what the thousands of dollars of test equipment shows, none of that high tech stuff has ears. None are capable of telling one how the speaker sounds as that is up to the interpretation of the listener.
My fiddling with high Q filters was just to see if I could do it. I did despite the discouraging comments from a few electrical engineers.
I've sent the PM as you suggested. I see you're in the N.E, area. That's MIT territory, the birthplace of Acoustic Reasarch, KLH and Boston Acoustics to name a few. I lived in Poughkeepsie, N.Y. from 69 to '75. An I.B.M. town back then and everyone had an AR-3, except me. Couldn't afford them back then.
Anyway, it's a pleasure conversing with you. And, you're so right, it'a all about the music. Seems so many listen to the equipment and miss the music.
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Old 7th July 2013, 09:41 PM   #13
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Originally Posted by klipschorn View Post
Seems so many listen to the equipment and miss the music.
Amen to THAT!!!
"It's all about the music!"
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Old 19th April 2016, 08:35 PM   #14
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I know this is an old thread, but I am trying to rebuild Wharfedale W90D's and I'm looking for some help. Klipschorn and speakerdoctor, I am PMing you...
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