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In the Forum: Horn-Loaded Speakers
In the Thread: Aporia - Silbatone Acoustics speaker
Post Subject: High Level Input SS "Plate Amp"Posted by Paul S on: 6/8/2019
Years ago, when I visited the Cogent guys, Rich was working on one of their big drivers. The diaphragm was big and even thick and heavy, as compression driver diaphragms go. Of course they used 300B amps, and the bottom end had the "sewer pipe" type coloration, but the thing - as I reported here - sounded amazing around 4-800 Hz.  How to go lower with the large motors, with higher reciprocal masses  required at low frequencies?  A common type powered subwoofer might hold part of the answer: I haven't seen one of this type sub for a while, but those I have seen and used allow one's FR amplifier output as input.  And I see no reason why an SET output wouldn't work, at least if its output impedance was low enough.  Is this "the best of both worlds" or too complicated by half?  I dunno.  Not sure, especially below 40 Hz, what part requires nuance, but some current PA drivers may require minimum 3,500W.


Paul S

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