YACAT - Single 10" sub or two 8" subs?

RaiderJ

Diamond Member
Apr 29, 2001
7,582
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Alright, looking for some mostly subjective advice here. I have a 2005 GMC Canyon crew cab, so my options for subs are limited since I'd like to keep my backseat.

My first option would be an MTX Thunderform with a single 10" sub that can hand 225/450 watts (RMS/Peak). I don't have any experience with MTX stuff, but my guess is that it is of decent quality.

My other option would be a custom box that holds two 8" subs. I'd have to wire a couple 2 ohm subs in series in order for this to work with my amp.

Couple questions:

* Would putting two subs in series be acceptable if they shared the same space? How about if they were in separate spaces?

* Are MTX enclosures worth the money?

* Other options I'm overlooking?
 

Saga

Banned
Feb 18, 2005
2,718
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I have a 2005 GMC Canyon extended cab. I built a custom box for the rear and enclosed it with two 12.1 Kappas and a 611a Infinity mono block.

The reality is that you should design your box around the subs, not your subs around the box.. and if you buy that prefab box you will be extremely limited on your options.

All in all, I would go with one 10. The Canyon design is very solid and it blocks outside noise very well.
 

Saga

Banned
Feb 18, 2005
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Went and snapped two pictures for you - excuse the blizzard in the background, we have some nasty weather at the moment.

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RaiderJ

Diamond Member
Apr 29, 2001
7,582
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Originally posted by: Izusaga
Went and snapped two pictures for you - excuse the blizzard in the background, we have some nasty weather at the moment.

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That's a pretty loud setup I imagine! I can't really go with anything that custom, as I still want to keep my back seats. :(
 

Saga

Banned
Feb 18, 2005
2,718
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Before I installed this I had a single prefab 1.5cubic box and a 12" pioneer 400w, running off a 350w Rockford mono. It was, in my opinion, plenty loud - and left me with one back seat.

The only problem is when we went grocery shopping the girl still used the excuse "you still have room" to make us take the truck. She just dislikes driving in general, I guess, and I don't like driving a 2006 Altima very much, no get up and go on them.

What you see is the result of my solution to the grocery shopping problem. Now we take the car.
 

jtvang125

Diamond Member
Nov 10, 2004
5,399
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Originally posted by: RaiderJ
It can do 500W RMS @ 4 ohm.

I recommend two of these Diamond Audio D308D. Not sure of the dimensions of your box but you can check out the parameters of the sub here.

Excellent subs for the price. MTXs and pioneer subs can't touch these in terms of SQ and output.
 

RaiderJ

Diamond Member
Apr 29, 2001
7,582
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I don't have a box yet... but I've seen a couple that take two 8" subs with about 0.33 ft^3 of space for each. I'm leaning towards a 2x8" setup since the box will fit completely underneath the seat.

Running 2 8" subs in series to match the 4 ohm impedance will work just fine I assume?
 

Preyhunter

Golden Member
Nov 9, 1999
1,774
12
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What about building a custom fiberglass box? You could build it around any sub(s) you want in a shape that will allow you to keep the seats.
 

RaiderJ

Diamond Member
Apr 29, 2001
7,582
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Originally posted by: Preyhunter
What about building a custom fiberglass box? You could build it around any sub(s) you want in a shape that will allow you to keep the seats.

I don't really have the resources to do something like that, but I could get one made for a decent price locally I think (or just as cheap as getting one shipped to Alaska).
 

glen

Lifer
Apr 28, 2000
15,995
1
81
To compare subs, you basically need to know which moves more air, or has the potential to move the most air.
This is surface area x stroke.
 

bignateyk

Lifer
Apr 22, 2002
11,288
7
0
I always go for two 8" subs at lunch over the 10" because the difference in price is only like a dollar.
 

Preyhunter

Golden Member
Nov 9, 1999
1,774
12
81
Meh, I'd go with the Thunderform off ebay for $225. You could always swap out the sub for a different 10" if you wanted. If you wanted to do more than one 10", then I'd consider going fiberglass. You're TYPICALLY (for subwoofer spec nazis) gonna get closer to 20Hz with a 10" than you will with 8".
 

Howard

Lifer
Oct 14, 1999
47,982
11
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2 8"s can go louder for the same amount of power, depending on enclosure size driver.
 

ryan256

Platinum Member
Jul 22, 2005
2,514
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71
What are you going for?? Loud boom or lower frequencies that are a bit more musical??
If boom is what you're after go for two 8" subs. Two 8"s can move much more air than one 10". If however you want something a bit more musical sounding I'd recommend a single 10" or if you can fit it 12". They can go lower than 8" subs.
Me? I have a single Infinity 10" in a custom enclosure powered by a 200 watt Rockford Fosgate. It sounds great. Custom boxes are NOT hard to build. If you'd like some help PM me the dimensions you have to work with.
 

RaiderJ

Diamond Member
Apr 29, 2001
7,582
1
76
Probably musical quality. I have some good 6.5" components for the front door, and coax 6.5" for the rear doors. So something to fill in the sub 80Hz range to keep things balanced. I can't do a 12" without lifting the seats or something crazy like that.
 

ryan256

Platinum Member
Jul 22, 2005
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Originally posted by: Preyhunter
What about building a custom fiberglass box? You could build it around any sub(s) you want in a shape that will allow you to keep the seats.

True you can make it any shape you want. But keeping it the correct amount of cubic feet would be difficult. Also some shapes just don't work well for good sound.
 

Nutdotnet

Diamond Member
Dec 5, 2000
7,721
3
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I'd go with 1 10" DVC sub, with either 4ohm or 2ohm voice coils.

See what your amp can truly can handle. Any monoblock amp worth it's salt can at least go down to 2ohms. If it can, wire a 4ohm DVC in parallel and be amazed. :D
 

50cent1228

Platinum Member
Oct 5, 2006
2,425
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Originally posted by: Nutdotnet
I'd go with 1 10" DVC sub, with either 4ohm or 2ohm voice coils.

See what your amp can truly can handle. Any monoblock amp worth it's salt can at least go down to 2ohms. If it can, wire a 4ohm DVC in parallel and be amazed. :D

i totally agree, this one is great:linky
awesome sub and awesome quality for the price