Push-pull woofer alignment - diyAudio
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Old 26th June 2007, 02:40 PM   #1
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Default Push-pull woofer alignment

Push-pull woofer alignment questions Post #1
First off - I've read from several websites that seem to not be able to agree on two important issues.

1) Some state that PP configurations are like isobaric configurations, in that the Vas needed for cabinet volume is halved (assuming two woofers in parallel). But some say PPs are the same as two conventionally mounted woofers, in that the Vas requirement is doubled for a cabinet. Which is true?

2) Some state that even-ordered harmonics are cancelled, some say that odd-ordered harmonics are cancelled. Which is true? and Does it matter?

Also, if its possible to reduce the needed cabinet size by half using a PR, then how much bigger than the active driver would the PR need to be?
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