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Message: <blockquote data-quote="SPL140.2" data-source="post: 1010468" data-attributes="member: 559635">this is what I read the other day:I just did a little test with two different boxes and different inverted combinations. I used 2 12w1v2's in a sealed box .75 cu ft each(seperate chambers) with the subs mounted in the box. On the TL mic it did a 130.2 I then inverted both and did a 129.9 Then I changed to a box that is shared air (same cu. ft as before) I ran both in the box 130.1. The one inverted and on in the box and did my high for the day at 130.6. Then both inverted for a 130. There should be no variables in this test. I used the same tracks, I used the same voltage (on a battery charger and waited until the amps all read the same). So I'd have to believe at least in the basic sub line that a push/pull can be louder. I'm going to test again with a bigger box and different subs later.</blockquote>

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