6th order bandpass enclosure

[ryanjacobs13 10+ year member]

Do any of you have any tips for building a 6th order enclosure. I spent most of the day building one for my 2 8" subwoofers and it sounded like ***. Any tips or suggestions would be nice.

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[80INCHES 5,000+ posts]

Wat 8's R U Using?

80

 

[hrtbrk1 5,000+ posts]

you from hydro op?

 

[ryanjacobs13 10+ year member]

They are Xsite 150W max subs. I designed it for 2 jl audio w1 8s, juss have to wait til i get paid to get em.

 

[DNick454 10+ year member]

What are the two tuning frequencies and their respective volumes (minus all displacelents). You might have the two tuning frequencies close to each other and the pass-band is too small. For 6th orders, that's crucial and will severely lower the enclosures output when the tuning frequencies are near each other. Instead of building pressure, one vent inhales while the other exhales and it almost sounds as if you have a box with two subs working against each other out of phase. You might try putting the two frequencies further apart and then tweaking the volumes of each to get your peak/transient response under control.

 

[ryanjacobs13 10+ year member]

The front was .28 ft^3 at 36hz and the rear was .614 ft^3 at 70hz. I'm not sure of the name of the site i was on but i juss typed in the specs i needed and it designed the enclosure for me and it said the passband was 38-87.

 

[fearof85 10+ year member]

The chamber tuned lower should be bigger than the other.

Drew

 

[ryanjacobs13 10+ year member]

Ok, thanks. I guess i just read it wrong and put the ports in backwards. So if i just switch the ports around should it sound better?