Parallel 6th order/RDS 6.5

Bobbytwonames

Trigger Man!
5,000+ posts
Aug 28, 2018
11,710
-379
It doesn’t like to play below 30 HZ. I have a -24 db SSF set at 30 along with a limiter that cuts it back when it senses a clipped signal. Effective bandwidth is from 30-65 HZ. Really solid sounding on music. Where you really have to be careful is around the 60-65 HZ area. The sub is only moving about 3 mm at 60 cycles per second, so it’s easy to burn a coil in that little spot with test tones. You can still hear over excursion in a parallel tune, unlike a series tune, where you might not hear over excursion until it’s already jumped it’s gap and caused damage. I had this thing really stinky this afternoon running test tones at my cabin gain frequency. That’s at about 59 HZ.
30 hz. is great for a 6-½" sub IMO.
 

Buck

Why so Sirius?
5,000+ posts
10+ year member
May 19, 2008
29,887
1,511
It doesn’t like to play below 30 HZ. I have a -24 db SSF set at 30 along with a limiter that cuts it back when it senses a clipped signal. Effective bandwidth is from 30-65 HZ. Really solid sounding on music. Where you really have to be careful is around the 60-65 HZ area. The sub is only moving about 3 mm at 60 cycles per second, so it’s easy to burn a coil in that little spot with test tones. You can still hear over excursion in a parallel tune, unlike a series tune, where you might not hear over excursion until it’s already jumped it’s gap and caused damage. I had this thing really stinky this afternoon running test tones at my cabin gain frequency. That’s at about 59 HZ.
What’s your rear port area per cube?
 

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