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In Reply to: RE:REALLY big stats posted by Sondek on August 08, 2016 at 06:45:04
That is an interesting proposition. I did very much enjoy my 2 weeks with a 2+2 TNT amp and a subwoofer. But I did clip the amp ,bottom the speaker and drove the sub to distortion when no one else was around. So I am likely playing much harder than you are used to. My SPL meter typically goes to over 100db on solo piano on fast response c weighed peak hold. On average spl on loud passages with the meter on slow response c weighting average (rather than peak) I play in the low 90s.
Have you monitored your SPL levels in playback?
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Satie wrote:
"Can't be certain that it is concave. My German is way too rudimentary for the nuance of the technical details in the review. The pics imply that it is slightly concave, but it could be a lens issue."
It is concave. According to the reviewer, the sweetspot is not that critical. I do not believe him… Neither the statement that there is no problem with limited SPL, not even in the bass down to 30 Hz. I find the radiating area is too small for that, it is about 75x100 cm or equal to the Tympani IVa. Just remember, an electrostatic cannot drive its diaphragm into the its electrodes and the size of the modules will also limit the excursion of the plastic film too. Still, they can probably deliver sweet sound but maybe with not for headbangers.
So long as it can deliver Brunhilda and the drama at realistic levels...
I am not expecting that to provide the big Soundlab experience. But it did look very impressive and the materials choices were interesting.
Satie, not sure how accurate the app for my phone is at measuring db, but 95 to 105, or more, is not a problem. In fact, night before last I was cranking Junior Brown at peaks touching on 98 db before my daughter burst into the room demanding that I "turn that shit down". I'm pretty sure they'll play way louder than 105, it's just that I can't stand to listen that loud. The loudest peak I ever measured on them was 108. They seem to be completely unfazed at those levels too. The panels have been measured down to 28 hz on the low down without use of a sub. The full-range operation make for unrivaled coherency of sound. If you ever find yourself in the DFW area you're welcome to drop by for a listen.
That is very impressive even for a regular speaker, not to speak of a hybrid ESL. Well beyond what I would have expected.
My peak measurement was 126 db which was by accident while transitioning from doing measurements for XO settings to playing music. Both bass panels and midrange bottomed out and Sarah Vaughn was singing with violins stuck in her mouth.
My typical measurements on really large scale orchestra get peak readings at the 105-115 db level Things like Stravinsky Ballets Mahler and Liszt and Tchaikovsky tone poems. Oddly, I don't get those transient peaks from CD when played at the same average SPL. peaks on CD are apparently either cut off or compressed. When played on CD with the same 92 db average reading in the loud passages I don't get peaks in excess of 105db.
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