Vibration: Subwoofer Plate Amplifiers

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I find it remarkable that most powered subwoofers (even true high end products) use enclosure-mount plate amplifiers instead of an outboard amplifier which can be placed on a vibration isolation device(s). A subwoofer enclosure generates such a notable amount of vibration that it seems odd to stick an amp onto a resonating panel for the sake of space saving, perhaps. Even an amp which is placed on a shelf or dedicated floor stand benefits greatly from additional vibration isolation.
What if anything do better products use to isolate vibrations from a plate amp?
I plan to mod a stereo pair of KEF subs: Replace the stock plate amps with a Bryston 3B-ST and an outboard active x-over.

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Topic - Vibration: Subwoofer Plate Amplifiers - Duster 12:53:08 10/16/05 (3)

Good post! - Al Sekela 12:46:31 10/18/05 (0)

Re: Vibration: Subwoofer Plate Amplifiers - pkell44 11:37:30 10/17/05 (0)

Excellent observation. - kenster 02:28:53 10/17/05 (0)

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