Alternate Audio Planar Speakers

Planar Speaker Asylum

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A friend made my pair of planar speakers. The kit is from a defunct company called Alternate Audio, but my friend changed the design slightly. They employ a 40" planar panel, a Realistic true ribbon tweeter, and a 6.5" woofer. I now use a pair of Tannoy 8" woofers as subs (not in the picture). I find them beautiful, and they sound wonderful.
I love these speakers dearly.
I do listen at extremely loud levels, once in a while (Rite of Spring, the Ramones, Kinks, Shostakovich :) ), and the panel on the left does break up with certain frequencies at these excessive volumes (90dB? Not sure), especially with timpani, french horn clustered chords, etc. The usual difficult to record sounds.
I imagine this is not unheard of with planars? That they cannot handle excessive SPLs? Have any of you planar owners experienced similar, and solved it with a better matched (or more powerful) amp?
My amplification is: Benz Micro PP1 MC phono preamp, Audio Experiences "Symphonies" tube preamp, and DIYed Conn push pull stereo organ amp (7868 tubes, 21-23 wpc; it can play mighty loud on my cone dr.ver speakers).

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Topic - Alternate Audio Planar Speakers - Dr. Fuse 17:47:21 05/17/20 (2)

RE: Alternate Audio Planar Speakers - Story 02:44:16 05/18/20 (0)

RE: Alternate Audio Planar Speakers - Utley1 20:19:12 05/17/20 (0)

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