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Audio and Video Talk
General Discussion
A man-sized sub-woofer system (Kinoshita Infra-Sonic System at Bop)
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<blockquote data-quote="Hennie" data-source="post: 58913" data-attributes="member: 20"><p>No, the air displacement is indeed doubled. The bass reflex (BR) configuration and the acoustic output is the same as with four regularly mounted drivers in a regular BR design. The key difference here is that two drivers are mounted with their butts towards you to render the transfer function symmetrical in the far field and at LF, thus canceling even order distortion. Above some frequency and at some off axis angle this cancellation will no longer apply as the bandwidths and radiation patterns of the rear and front will differ. But for typical subwoofer applications the distortion reduction will be achieved.</p><p></p><p>A better solution is to mount the two drivers in a push-pull manifold to also eliminate most vibration transmission.</p></blockquote><p></p>
[QUOTE="Hennie, post: 58913, member: 20"] No, the air displacement is indeed doubled. The bass reflex (BR) configuration and the acoustic output is the same as with four regularly mounted drivers in a regular BR design. The key difference here is that two drivers are mounted with their butts towards you to render the transfer function symmetrical in the far field and at LF, thus canceling even order distortion. Above some frequency and at some off axis angle this cancellation will no longer apply as the bandwidths and radiation patterns of the rear and front will differ. But for typical subwoofer applications the distortion reduction will be achieved. A better solution is to mount the two drivers in a push-pull manifold to also eliminate most vibration transmission. [/QUOTE]
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Audio and Video Talk
General Discussion
A man-sized sub-woofer system (Kinoshita Infra-Sonic System at Bop)
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