[Mike P.]

Let's explore all your options. Is the AV15-H still functional? I haven't modeled it but it may be worth modeling it with a pair of Passive Radiators to see what the performance would be like compared to the sealed enclosure it was in.

 

[Mike P.]

What hi-pass filter setting were you using on the O-Audio amp?

 

[Mike P.]

Understood. And I also understand your frustration. If there is indeed a mechanical issue with the sub then it should be replaced under warranty with no cost to you. A simple way to verify the sub is mount it on a couple of saw horses ( one horse on each side supporting the frame) and run one channel of the EP amp with test tones, making sure the amp doesn't clip. If you hear mechanical noises then your sub has a problem.

 

[Mike P.]

The SDX15 and Tempest-X come to mind. Both in 7 cu.ft. tuned to 20 hz with 1000 watts input and a High Pass filter at 17 hz. Add another .75 cu.ft or so for the slot port and bracing, etc. Yellow is what you have now.

 

[Mike P.]

You can start with one sub per channel and see how it goes. You will need a High Pass filter to protect the sub/s from over excursion.

 

[Mike P.]

Reckhorn B2 Bass management from CSS, about $100.

http://creativesound.ca/details.php?model=B-2

 

[Mike P.]

15% poly-fill works out to be 2.4 oz. per cu. ft. of box volume. That's not like the one pound per cu.ft. that's usually recommended for sealed enclosures.

 

[Mike P.]

Let's not forget the application here. The AV-15H will not produce the low end output that the Tempest-X or SDX15 can if that is what he's after. As good as the AV-15H is, there are better choices.

 

[Mike P.]

I obviously messed up when I previously modeled the sub. :rubeyes:I'm glad you questioned it. Since he's looking for a 6 - 7 cu.ft box here's all threes subs modeled with 1000 watts input and all have a hi - pass filter at 17 hz. There's not much difference between them.

 

[Mike P.]

It's gonna sound cleaner too since it's gonna have way less inductance modulation.

What it be enough to sound noticeable in a double blind test?

 

[Mike P.]

Apparentlyto turn the filter off, you have to set the switch to on.

Facing the back of the amp switch #3 and #8 need to be moved to the right hand side for the filter to be off.