Building an SQ box, some questions.

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09-05-2003, 09:37 AM

Mustang 5.0

50 Watt CAFz'r

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Join Date: Nov 2000

Posts: 163

Building an SQ box, some questions.

I will be building an SQ box for 1 12" Orion HCCA sub with 800watts going to it. I want to use a box suggested by Orion. It is ported, 2.25 cu.ft. 4" diameter port, 12" long, tuned to 33Hz. It will be going in the hatchback of a 1987 Mustang. The port sounds kinda small, do you think there will be port noise? Also which way should I have the port firing? Towards the back or front of the car? Thanks in advance. [img]graemlins/jammin.gif[/img]

09-05-2003, 12:22 PM

Paul Niwranski

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IMO the vent is a little too small too but adding a second will make them pretty long. Try to find an aeroport and/or vent to the rear.

09-08-2003, 05:27 PM

gleepoy

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I agree with Dukk...that vent is way too small. I've tried that "SQ" enclosure recommended by Orion...it didn't perform at all. I ended up building another enclosure...2.25cf, 33Hz tuning with 40 sq in of port. But you might be able to get away with 24 sq in of port, but I wouldn't go too much smaller than that with 800 watts. Use a slot port...it'll be much easier fitting the port.

Gary

09-13-2003, 11:47 AM

Mustang 5.0

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Join Date: Nov 2000

Posts: 163

Quote:

Originally posted by gleepoy:
I agree with Dukk...that vent is way too small. I've tried that "SQ" enclosure recommended by Orion...it didn't perform at all. I ended up building another enclosure...2.25cf, 33Hz tuning with 40 sq in of port. But you might be able to get away with 24 sq in of port, but I wouldn't go too much smaller than that with 800 watts. Use a slot port...it'll be much easier fitting the port.

Gary

Thanks for the info. It seems odd Orion would suggest such a badly designed enclosure, I would think they would have tested it. Any other comments?