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In the Forum: Audio Discussions
In the Thread: Macondo’s MiniMe or about Pilot Acoustic Systems
Post Subject: Will see how it goes…Posted by Romy the Cat on: 7/14/2009
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Markus, I do not know if you are right. I think to pay $12 for the passive radiators and to try might be one way to confirm it. I will have them in a few days. My rational (perhaps mistaken) why I feel that it might work and you might be wrong is following:
What triggers the Helmholtz resonator – pressure itself or change of pressure? If pressure itself then you are right – a port or passive radiator would ideals pick up the pressure from Macondo’s LF. However, I think that it is not pressure itself but the rate of pressure change. Let take an empty bottle and blow air across the bottle hole. You will have the classic Helmholtz resonance. Now let to cover the hole with very fine fabric and the resonance will be changed very dramatically.
So, my presumption is that a passive radiator might (or might not) be as some kind of valve that would distinct external pressure flow from internals pressure flow. Well at least it what I hope… It might juts minimized the effect and it might be good enough. The $12 is not too much price to pay to try….
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