Reuse car audio subwoofer for HT? - AVS Forum
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Old 12-17-2014, 02:20 PM - Thread Starter
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Reuse car audio subwoofer for HT?

I've got 2 Jamo Sub300s that I am going to use in my room once it's finished but have read that they aren't really for HT but moreso a musical sub.

So I've been browsing around PE and see some options there including the Dayton titanic DIY kits that seem appealing.

Then I thought hang on... I've got 2 car audio subs sitting idle... Could I use these somehow? They are 10" precision power PC10 C2 4 ohm subs. Specs here on the 5th page of the PDF:

http://www.precisionpower.com/Manual...fers.pdf#page5

Could I just get some 10" cabinets and plate amps for these from PE and have something useful for HT? If so, which ones?

Even with all 4, will I still be missing the low end HT frequencies?

Last edited by Swervepf; 12-17-2014 at 02:32 PM.
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Old 12-17-2014, 03:58 PM
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Yes you can reuse those 10" woofers. Luckily they are specd like an average woofer and not a stereotypical car sub. You have two options, you can go with a small sealed box (0.75 - 1 ft3) and use the boosted 200 watt Yung amp
http://www.parts-express.com/yung-sd...35-hz--301-506

Or you could take this 2 ft3 flat pack, cut a hole in the back and stick a 3" port kit in there and have a sub tuned to about 23hz
http://www.parts-express.com/knock-d...inet--300-7086
http://www.parts-express.com/precisi...e-kit--268-350

You would want the 200 watt Yung with NO boost for that version
http://www.parts-express.com/yung-sd...boost--301-504


No clue about your Jamo subs but I doubt they do much below 30hz. The boosted sealed version above would also roll off steeply below 30 hz
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Old 12-17-2014, 08:53 PM - Thread Starter
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Yes you can reuse those 10" woofers.

Or you could take this 2 ft3 flat pack, cut a hole in the back and stick a 3" port kit in there and have a sub tuned to about 23hz
http://www.parts-express.com/knock-d...inet--300-7086
http://www.parts-express.com/precisi...e-kit--268-350

You would want the 200 watt Yung with NO boost for that version
http://www.parts-express.com/yung-sd...boost--301-504


No clue about your Jamo subs but I doubt they do much below 30hz. The boosted sealed version above would also roll off steeply below 30 hz

Lower than 30hz sounds good! With the ported box, can I put the port in front instead? I'd like to place the box as close to the wall as possible thus am concerned with not giving the port enough room to breathe.

Also I'm not sure I'm up for finishing the box. How about an already finished box like this?

http://www.parts-express.com/dayton-...vinyl--302-843

Any particular reason you suggest the Yung 200w plate amp? How about a Dayton or other brand? How about a more powerful amp? Sub says 300w rms handling so would a 300w amp be ok?
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Old 12-17-2014, 09:03 PM
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Originally Posted by Swervepf View Post
Lower than 30hz sounds good! With the ported box, can I put the port in front instead? I'd like to place the box as close to the wall as possible thus am concerned with not giving the port enough room to breathe.

Also I'm not sure I'm up for finishing the box. How about an already finished box like this?

http://www.parts-express.com/dayton-...vinyl--302-843

Any particular reason you suggest the Yung 200w plate amp? How about a Dayton or other brand? How about a more powerful amp? Sub says 300w rms handling so would a 300w amp be ok?
You can use that box but you will have to cut the port size down to about 13" long which will tune you to 25hz. That will still work fine. With a 3" port you need to leave at least 3" from the inner port opening to the interior cabinet walls.

Yes you could put the port on front of the box, you just might have to off center the woofer

200 watts is based on the excursion capability of that woofer. Getting down low requires lots of cone excursion, and these woofers dont really have much. 300 watts might work fine in a car but you will likely bottom this thing out with a 300 watt amp .
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Old 12-17-2014, 09:10 PM
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Honestly though if you're going to spend that much money on a cabinet you might as well get the 3 ft3 box for a few bucks more and buy a new driver like this Infinity 1260W

http://www.amazon.com/Infinity-Refer.../dp/B0028AVGEO

Then you can use a 4" x 15" port and a 250-300 watt amp
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Old 12-18-2014, 12:07 PM - Thread Starter
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Honestly though if you're going to spend that much money on a cabinet you might as well get the 3 ft3 box for a few bucks more and buy a new driver like this Infinity 1260W

http://www.amazon.com/Infinity-Refer.../dp/B0028AVGEO

Then you can use a 4" x 15" port and a 250-300 watt amp
and how low might that setup go? would I get below 23hz?
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Old 12-18-2014, 07:20 PM
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and how low might that setup go? would I get below 23hz?
The modeled -3 db point would be 24hz. Corner loaded in room would easily reach 20hz. With a 300 watt amp you would have 110db output capability from 1 sub. This would have about 6 db more output at 30hz then your 10" sub with 200 watts
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Old 12-18-2014, 09:07 PM - Thread Starter
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Reuse car audio subwoofer for HT?

So what you're basically saying is that I will FEEL those tanks, trains, bombs, depth charges, dinosaurs, earthquakes, etc etc. Excellent.

Thanks for all this info!
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