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Unread 07-07-2010, 11:29 PM   #1
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Default Brain storm Audio system.

I have been debating what kind of system to do in the GTO and I believe I want to do a twin Woofer with a 10" and 12". The 12 would be on the passenger Quarter panel and the 10 on the driver quarter panel. Now for the plans. I have never done different sizes before I know I should use separate amps to allow better tuning. If I did run a single amp what danger would there be in bridging the 2 together like matching speakers? I'm trying to get something with punchy mid like a 10" and also a deeper tone like a 12". basically I'm not looking at a major louder then a jet plane sound system but I want good volume and a full range of highs mids and lows for ultimate quality. What would you do?
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Unread 07-08-2010, 12:04 AM   #2
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I'll summon pbasil!
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Unread 07-08-2010, 08:33 AM   #3
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Ok I did some research last night and I think i'm going to run 1 sub instead of 2 in the driver rear quarter panel and the amp in the passenger rear using the speaker location on the passenger rear to mount a cooling fan for the amp. Her's some pics.

Amp would be here

http://i56.photobucket.com/albums/g1...r/siderear.jpg

Speaker here.

http://i56.photobucket.com/albums/g1...8071shrunk.jpg

and this is my shopping cart.

http://www.sonicelectronix.com/[email protected]
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Unread 07-08-2010, 05:06 PM   #4
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Find a better sub
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Unread 07-08-2010, 06:30 PM   #5
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Find a better sub
I'm not punch fan but out of the 15 shallow mount Subs I went through this was the best pic for the air space, power, and price.
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Unread 07-09-2010, 01:33 AM   #6
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I'm kind of a kicker sub guy, but I've always heard good things about their cvt line. http://www.sonicelectronix.com/item_...10CVT102-.html

Also, skip the fancy 5 channel amp. buy two amps and don't waste your time. 4 channel for your speakers and an individual monoblock for the sub. You will be much more pleased with your results.

http://www.sonicelectronix.com/item_...+MRP-M500.html

http://www.sonicelectronix.com/item_...+MRP-F300.html
just as good examples that have a pretty small foot print. I would recommend their pdx line as they are amazing little amps, but the price is a little steep.
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Unread 07-09-2010, 01:38 AM   #7
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I would recommend getting a sub from JL, they're unmatched in quality, and even the small 10" ones are more than enough for your needs.
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Unread 07-10-2010, 11:07 PM   #8
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A would use a single driver if you are shooting for utmost clarity. Multiple drivers operating in the same passband in any space with boundaries is begging for constructive and destructive interference. Yes, the drivers would probably be within a half-wavelength at true 'subwoofer' frequencies so mutual coupling could occur, but phase cancellations from the enclosed space run the risk of negating any gains you would make in volume there.

Punch should not really associated with small cones and depth should not really be associated with larger cones. I suggest finding a single, high quality driver to handle your needs instead of looking to overcomplications of a simple problem. Bass is nice and simple. Remember, your subwoofer works in a passband that is at the absolute most maybe 150hz wide - other components in your system are covering ranges several orders of magnitude larger.

I am a huge fan of the Eminence LAB12 driver, and have built many subwoofers utilizing it for both car and PA applications. It has moderately high sensitivity, does well in small to medium ported enclosures. You can yield usable response down into the lower 30hz range, and predominately flat response up until at least 100hz, probably about where you'll be looking to cross over to your other speakers depending on their response.

If you need shallow mount, though... I dont have a clue. Smaller footprint means less magnet and less excursion, two issues that are hard to overcome. There is not much replacement for displacement of air.
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Unread 07-10-2010, 11:34 PM   #9
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Quote:
--------------------------------------------------------------------------------

I'm kind of a kicker sub guy, but I've always heard good things about their cvt line. http://www.sonicelectronix.com/item_...10CVT102-.html

Also, skip the fancy 5 channel amp. buy two amps and don't waste your time. 4 channel for your speakers and an individual monoblock for the sub. You will be much more pleased with your results.

http://www.sonicelectronix.com/item_...+MRP-M500.html

http://www.sonicelectronix.com/item_...+MRP-F300.html
just as good examples that have a pretty small foot print. I would recommend their pdx line as they are amazing little amps, but the price is a little steep.
I was looking at the kicker first but eliminated it due to space requirements I only have
.58 and the kicker wants 1.0. Your 10" over the 12" I checked out is lower but still wants .80 I will reconsider as I prefer Kicker my self andhave loved the L7'I had in the past. The amps look interesting not really a alpine fan but i'll do some research as the amp I was origianlly planning might not fit in the spot I want anyway. I always have been a fan of single multi channel amps don't know why but they have always given me the best results and possible configs. That JL amp is awsome for the price so i'm kinda hooked right now.

Quote:
A would use a single driver if you are shooting for utmost clarity. Multiple drivers operating in the same passband in any space with boundaries is begging for constructive and destructive interference. Yes, the drivers would probably be within a half-wavelength at true 'subwoofer' frequencies so mutual coupling could occur, but phase cancellations from the enclosed space run the risk of negating any gains you would make in volume there.

Punch should not really associated with small cones and depth should not really be associated with larger cones. I suggest finding a single, high quality driver to handle your needs instead of looking to overcomplications of a simple problem. Bass is nice and simple. Remember, your subwoofer works in a passband that is at the absolute most maybe 150hz wide - other components in your system are covering ranges several orders of magnitude larger.

I am a huge fan of the Eminence LAB12 driver, and have built many subwoofers utilizing it for both car and PA applications. It has moderately high sensitivity, does well in small to medium ported enclosures. You can yield usable response down into the lower 30hz range, and predominately flat response up until at least 100hz, probably about where you'll be looking to cross over to your other speakers depending on their response.

If you need shallow mount, though... I dont have a clue. Smaller footprint means less magnet and less excursion, two issues that are hard to overcome. There is not much replacement for displacement of air.
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I came to the same conclusion the more research I did although my thought process looked nothing like your Tech explanation. LOL! I thinking more along the lines now of hiding the amps in the pass sie quarter and using a fan to cool through the speaker grill there. While 1 12" in the driver quarter should work for more then adaquate Bass. That would also leave me the rear deck and front doors for componets which should sound awesome.
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Unread 07-11-2010, 12:07 AM   #10
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Quote:
Originally Posted by lautinjr View Post
I was looking at the kicker first but eliminated it due to space requirements I only have
.58 and the kicker wants 1.0. Your 10" over the 12" I checked out is lower but still wants .80 I will reconsider as I prefer Kicker my self andhave loved the L7'I had in the past. The amps look interesting not really a alpine fan but i'll do some research as the amp I was origianlly planning might not fit in the spot I want anyway. I always have been a fan of single multi channel amps don't know why but they have always given me the best results and possible configs. That JL amp is awsome for the price so i'm kinda hooked right now.



I came to the same conclusion the more research I did although my thought process looked nothing like your Tech explanation. LOL! I thinking more along the lines now of hiding the amps in the pass sie quarter and using a fan to cool through the speaker grill there. While 1 12" in the driver quarter should work for more then adaquate Bass. That would also leave me the rear deck and front doors for componets which should sound awesome.
Haha, yeah, the first paragraph got a little heavy on theory.

Doing a little looking around, Tang Band has a low profile 12" that seems promising - I like the huge voice coil, which will aid in heat dissipation.

http://www.parts-express.com/pe/show...number=264-896
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