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Deleted member 5017
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I discovered ASR a few weeks ago, and after using a UMIK and REW, I thought others would appreciate some info regarding these Plats.
I'll be posting response curves, waterfall, etc as I finalize my (untreated) room EQ...
For now, here are some views of these old monsters.
The front of the right speaker. The silver strips on the left are the aluminum strips (4 of them) 5' long, surrounded by ceramic magnets. After about 35 years of aging, the glue holding the magnets in place began to fail, and when I was replacing the suspension rings, one came loose and partially tore through the left sides ribbon. Thank God for the Circuit Writer pen! The four vertically-aligned 12" woofers hide behind the cloth panel.
The view from the rear. Bob Carver's genius moment came when he realized that a very low Q woofer's low-end response would RISE, allowing a great-performing woofer to exist.
The Mark IV version included a single-piece ribbon section, and tone controls:
I am driving these speakers with two, bridged-mode Adcom 555's which supposedly can supply up to 800 watts per channel into less than 8 ohms. The speakers have very low distortion at very loud levels. It's an odd effect when 15-30 Hz tones jiggly your intestines!
I'll be posting response curves, waterfall, etc as I finalize my (untreated) room EQ...
For now, here are some views of these old monsters.
The front of the right speaker. The silver strips on the left are the aluminum strips (4 of them) 5' long, surrounded by ceramic magnets. After about 35 years of aging, the glue holding the magnets in place began to fail, and when I was replacing the suspension rings, one came loose and partially tore through the left sides ribbon. Thank God for the Circuit Writer pen! The four vertically-aligned 12" woofers hide behind the cloth panel.
The view from the rear. Bob Carver's genius moment came when he realized that a very low Q woofer's low-end response would RISE, allowing a great-performing woofer to exist.
The Mark IV version included a single-piece ribbon section, and tone controls:
I am driving these speakers with two, bridged-mode Adcom 555's which supposedly can supply up to 800 watts per channel into less than 8 ohms. The speakers have very low distortion at very loud levels. It's an odd effect when 15-30 Hz tones jiggly your intestines!
