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Planar Speaker Asylum Welcome! Need support, you got it. Or share you ideas and experiences. |
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In Reply to: RE: How to solve the bass issue? posted by pistonengine on March 15, 2012 at 18:33:35:
If you think about it, though, it's pretty easy to play out of phase with a node. Just stick a microphone out front and and invert the phase and tweak the gain. What you get is negative feedback. The disadvantage would be that you'd get some delay owing to the limited bandwidth of the woofer. This could produce some artifacts in the audible frequency range, although I don't know if it would do any sonic harm -- probably less than the harm the mode is doing.
I should point out that active mode cancellation isn't a new idea, it's a very old one in the technical literature.
I share your suspicions regarding radiation patterns. though, certainly insofar as interfacing with line sources is concerned. Less so with omnis, though I think it could still occur depending on position. But the proof is in the pudding, I'd expect the effect to be secondary since unless you have unfortunate room dimensions the modes are at different frequencies and this has a high Q filter.
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Follow Ups
- RE: How to solve the bass issue? - josh358 19:54:46 03/15/12 (0)
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