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Old 03-16-2011, 10:34 PM   #1
TDC-Nemesis
 
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sound system advice please? will 15" subwoofers fit?

will 15 inch subwoofers fit in the back of my LS?
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Old 03-16-2011, 10:56 PM   #2
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yes, but how much trunk space will be left?
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Old 03-16-2011, 10:59 PM   #3
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Not really interested in trunk space lol
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Old 03-16-2011, 11:00 PM   #4
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Just as long as I can get to my battery and spare tire
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Old 03-16-2011, 11:07 PM   #5
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A typical 15" sub requires 3 cubic feet of air space.
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Old 03-16-2011, 11:11 PM   #6
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Im thinking about going with this right here http://subthump.com/Chevrolet-GMC-Su...oofer-Box.html 2 12 inch speakers and a 1500 watt amp. How well would that work. I wouldnt even mind going 10 inch speakers
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Old 03-17-2011, 07:56 AM   #7
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I've got a dual setup with 2 10 inch kickers in my 99 GT with a 600 watt amp and it kicks more than I need.
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Old 03-17-2011, 08:01 AM   #8
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i went with triple tens with a 3200 watt amp tuned down to 2400 watts. subthump box. if you don't have the rubber mat in your trunk, you should be able to get to your spare easily. i have a rubber mat but i don't have a spare. so i took the inflator out and left it in the trunk.
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Old 03-17-2011, 08:23 AM   #9
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Quote:
Originally Posted by TDC-Nemesis View Post
Im thinking about going with this right here http://subthump.com/Chevrolet-GMC-Su...oofer-Box.html 2 12 inch speakers and a 1500 watt amp. How well would that work. I wouldnt even mind going 10 inch speakers
I went with 2 12s and a 1700 watt amp. Do yourself a favor and replace the factory amp at the same time. Subthump sells the kit, buy a JL XD400/4 (it fits in the same space as the factory radio).
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Old 03-17-2011, 11:08 AM   #10
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I went with a single jl audio 10w6 with a 1000watt kenwood amp and I have loads of clean bass with no trunk rattle. I can only imagine how loud a 10w7 would be in this car. Just saying you can get loud deep bass out a 10' sub depending on how much u spend.
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Old 03-17-2011, 12:18 PM   #11
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Instead of taking up all of your trunk. Think about this. Two ten inch subs is a total of 20 inches of surface space. 20 inches vs 15 inches, two tens takes less box space and will output the same or better sound than one 15.
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Old 03-17-2011, 12:55 PM   #12
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Quote:
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Instead of taking up all of your trunk. Think about this. Two ten inch subs is a total of 20 inches of surface space. 20 inches vs 15 inches, two tens takes less box space and will output the same or better sound than one 15.
this. in order to get the best sound out 1 15 you going to need alot of space for a ported set up.
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Old 03-17-2011, 01:49 PM   #13
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i have 2 10" audioque hdc3s in a custom made ported box built by me and tuned to 37 htz with a sound digital 5000.1D sounds great at about medium for daily but when i really want to pound it will put out 6500 watts at 14.4 volts when turned up. im not going full tilt till i get a double din in though but she beats trust me
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Old 03-17-2011, 04:08 PM   #14
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a single 15 will fit - or you can get the single 12" ported and drop a high-excursion 12 in it.
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Old 03-17-2011, 08:11 PM   #15
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My install will be complete next week and I will post pics. I went with two Alpine T-10's shallow mount subs. They kick and they only require a box that is .43 cubic ft.
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Old 03-17-2011, 08:15 PM   #16
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Free-Air subs require only the baffle(mounting board) to separate front from rear sound waves..so yes, 15s would work, provided they are OK to use in free-air design. Also know as 'infinite-baffle' designed, these subwoofers use the entire trunk as an enclosure.

Last edited by 2010SLVRBULIT; 03-17-2011 at 08:41 PM.
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Old 03-17-2011, 09:12 PM   #17
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How custom do you want to go?

I've done several like this and if you don't want to see the magnets invert the woofers, reverse the polarity and cover them (tranparent material). Keep in mind you need to build this in the car and in pieces out of at least 3/4 MDF or OSB. This is kinda like a pro sound application since the subs are horn loaded.

I've done 10's, 12's, 15's and 18's like this and if powered right... Stand by.

If done correctly your trunk can look like this.

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Old 03-17-2011, 10:58 PM   #18
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Quote:
Originally Posted by =Stephens= View Post
Instead of taking up all of your trunk. Think about this. Two ten inch subs is a total of 20 inches of surface space. 20 inches vs 15 inches, two tens takes less box space and will output the same or better sound than one 15.
Not totally accurate.

A typical 10" driver has ~330cm^2 of surface area, while a 15"er has ~800cm^2. Two 10s will not outdisplace a 15 given the same stroke.
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Old 03-17-2011, 10:59 PM   #19
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My install will be complete next week and I will post pics. I went with two Alpine T-10's shallow mount subs. They kick and they only require a box that is .43 cubic ft.
Looking forward to pics of that install!
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Old 03-18-2011, 09:28 AM   #20
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Quote:
Originally Posted by Alpine M View Post
Not totally accurate.

A typical 10" driver has ~330cm^2 of surface area, while a 15"er has ~800cm^2. Two 10s will not outdisplace a 15 given the same stroke.
How are you going to have a 15" with the same stroke as a 10"? I think the ten's would outperform the 15" given the more controllable distance of travel.

Makes sense of am I off?

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Old 03-18-2011, 10:35 AM   #21
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How are you going to have a 15" with the same stroke as a 10"? I think the ten's would outperform the 15" given the more controllable distance of travel.

Makes sense of am I off?

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Most likely you won't, but I was generalizing to dispel the myth that 2 10"s are 20 inches.

Typically, a 10" has less stroke than a 15", simply due to the mechanical design of the driver. Also, most manufacturers make their 15s to be the loudest, and ensure they have the most excursion/stroke/xmax of any of their sub sizes.

In short, 1 15" of similar quality will almost always out-displace (get louder) than 2 10"ers.

800 in^2 vs. 660 in^2 means the 15 has to move 20% less to have the same displacement, so in this case ... the 15" is actually moving less than a pair of 10s at the same output level.

Note - this is all assuming a sealed enclosure. Ported and bandpass ... all of this goes out the window.
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Old 03-18-2011, 11:19 AM   #22
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15 pro driver = higher db sensitivity and lower fs..

Win, Win
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Old 03-20-2011, 09:45 PM   #23
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15 pro driver = higher db sensitivity and lower fs..

Win, Win
Pro drivers don't have a lower Fs, they typically have a lower moving mass and stiffer suspension resulting in a higher Fs and SPLo but lower qts, due to a strong motor and shorter coil/xmax.

They're a bit tough to get right in a car since they like a small box to sound right, but can't dig low due to low mms and not enough excursion. There are some pro woofers that work well in the car, but in general they don't.
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Old 03-20-2011, 10:09 PM   #24
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I think if the physical space in the trunk is important, then a 15" sub would eat up most of the trunk. So 2 ten's would be better.
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Old 03-20-2011, 10:31 PM   #25
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Quote:
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Pro drivers don't have a lower Fs, they typically have a lower moving mass and stiffer suspension resulting in a higher Fs and SPLo but lower qts, due to a strong motor and shorter coil/xmax.

They're a bit tough to get right in a car since they like a small box to sound right, but can't dig low due to low mms and not enough excursion. There are some pro woofers that work well in the car, but in general they don't.
Ever use EV?
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