Resonance Quad Panels !

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I went an looket....I have 16ea........I got put them up for....some needs them I know?
As to how they look.... an the new ones....far as I see there the same.....but new panel has half for the highs an half for the mids....each panel has 2 in puts.....
like the Acoustat Spectra......one half feed with a res well setup a delay....an make a curved panel.....
look like people like the new Janzen speakers.....hell there ESLs....whats not to like?
 
According to section 4 of the service manual, Resonance checks, the resonance frequency should be about 50 Hz for a complete ESL-63:

http://www.euronet.nl/users/temagm/audio/esl63/ESL63_service_manual2.pdf

"Increase the volume until the voltmeter reads 8V rms. Gradually sweep up and down the frequency range. The loudspeaker response should be pure and free from rattles at all frequencies except at approximately 50 Hz where diaphragm resonance occurs."

-- Sorry, just noticed that you already knew this.
 
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According to section 4 of the service manual, Resonance checks, the resonance frequency should be about 50 Hz for a complete ESL-63:

http://www.euronet.nl/users/temagm/audio/esl63/ESL63_service_manual2.pdf

"Increase the volume until the voltmeter reads 8V rms. Gradually sweep up and down the frequency range. The loudspeaker response should be pure and free from rattles at all frequencies except at approximately 50 Hz where diaphragm resonance occurs."

-- Sorry, just noticed that you already knew this.

Np at all ! i did not know they do except rattles at 50 hz at 8v rms :) haha might test that see what happens:)
 
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