DIY sub build help - AVS Forum
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post #1 of 3 Old 03-13-2013, 08:50 PM - Thread Starter
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hi guys...i have two original sunfire true subwoofer 10 inch drivers..hivi sp10 lookalike...can i use a large PR with these 2 drivers?...like a 15 or 18"??any suggestions on the enclosure that would get the most from these two bad boys?
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post #2 of 3 Old 03-13-2013, 10:06 PM
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Without the TS parameters of the drivers there's really no way to know how they will respond in a specific box. You can take a shot at a PR setup though.

http://www.creativesound.ca/details.php?model=APR15

Build a 2ft3 box and load all of the included weight discs (900g) and you will have a 21hz tuned enclosure. 1.5ft3 box will tune you to about 24hz. Make sure you have an amp with a high pass filter.
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post #3 of 3 Old 03-14-2013, 04:36 AM
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the passive radiators serve the same purpose as ports; they tune the cabinet.

so long as the radiators are not hitting their limits, there is little reason to use larger ones, just as if you are using a port that is sufficiently large in diameter, there is no reason to use a larger one. it won't increase performance.

since they were used in a small cabinet that is probably what i would suggest.

something like 2 cubic feet for both drivers. then use a pair of 12" passive radiators on opposite sides to reduce cabinet vibration. something like this might work for you for a low cost:

http://www.parts-express.com/pe/showdetl.cfm?partnumber=295-496

Listen. It's All Good.
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