different size enclosures?

[boulderbronco 10+ year member]

I am running two Phoenix RSD12D subs with 450W RMS each. The recommended enclosure is Sealed: 1.2 cu. ft. for SQ and 0.78 cu. ft. for SPL. I am custom building my boxes in the rear of my bronco in place of the interior panels. I am done with the right side and it came out to around 0.9 cu ft. I have more room on the left side so was considering going around 1.1-1.2. Is this a bad idea to have two different size enclosures? I searched a bunch but did not come up with anything.

Thanks yall.

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[Immacomputer 10+ year member]

Keep them both the same size. Don't mix and match subs, speakers, or enclosures.

 

[phyphoestilic 5,000+ posts]

Seems werid to me that it says 1.2 for SQ and 0.78 for SPL. But yeah, do not mix match enclosures or subs.

 

[boulderbronco 10+ year member]

Seems werid to me that it says 1.2 for SQ and 0.78 for SPL. But yeah, do not mix match enclosures or subs.

Ok thanks guys. I double checked and those dimensions are right.

 

[Immacomputer 10+ year member]

Seems werid to me that it says 1.2 for SQ and 0.78 for SPL. But yeah, do not mix match enclosures or subs.

How so? When talking sealed enclosures, the smaller you go, the more of a hump you have at higher frequencies. This peak can get pretty nasty and can be pretty loud. The smaller enclosure kills low frequency extension though.