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High Efficiency Speaker Asylum Need speakers that can rock with just one watt? You found da place. |
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In Reply to: Perforated speaker cabinets posted by Bill the K on June 23, 2024 at 04:42:45:
It seems unlikely to me, at least at low frequencies where box volume tunes the cabinet.
Transmission loss is dominated by stiffness below resonance, damping around resonance, and mass above resonance. The holes will reduce stiffness, and the granite will increase mass, so it should help above the resonance frequency and hurt below. Damping is hard to guess without knowing the specific panel material and installation method.
Typical panels resonate at a few hundred Hz. Of course the are multiple resonances above the first one, but the same rules apply to them too.
I hope that is helpful.
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Follow Ups
- RE: Perforated speaker cabinets - Paul Joppa 08:33:06 06/23/24 (11)
- Ergo... Constrained layered damping has yielded superb results in my experience _nT - Cleantimestream 09:09:43 07/01/24 (10)
- RE: Ergo... Constrained layered damping has yielded superb results in my experience _nT - Bill Fitzmaurice 09:45:56 07/01/24 (9)
- Tried what? Try aluminum/cork and Hilti fire/smoke caulk for glue_nT - Cleantimestream 02:32:23 07/03/24 (0)
- RE: Ergo... Constrained layered damping has yielded superb results in my experience _nT - hahax@verizon.net 20:45:59 07/01/24 (7)
- RE: Ergo... Constrained layered damping has yielded superb results in my experience _nT - Bill Fitzmaurice 04:12:58 07/02/24 (6)
- You MUST have constraints... I do not ...8 layers of aluminum and 7 of cork will open your eyes (1/8)"_nT - Cleantimestream 04:08:14 07/03/24 (2)
- RE: You MUST have constraints... I do not ...8 layers of aluminum and 7 of cork will open your eyes (1/8)"_nT - tomservo 12:20:31 07/14/24 (1)
- RE: You MUST have constraints... I do not ...8 layers of aluminum and 7 of cork will open your eyes (1/8)"_nT - Cleantimestream 21:24:30 08/31/24 (0)
- RE: Ergo... Constrained layered damping has yielded superb results in my experience _nT - hahax@verizon.net 19:42:15 07/02/24 (2)
- RE: Ergo... Constrained layered damping has yielded superb results in my experience _nT - Bill Fitzmaurice 07:44:23 07/03/24 (1)
- RE: Ergo... Constrained layered damping has yielded superb results in my experience _nT - hahax@verizon.net 20:41:42 07/04/24 (0)
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