but they are not shallow are they?

im using the JL G-MAX monoblock
600rms@4ohm and 1200rms@2ohm

They are not shallow, but they do fit in very small enclosures. The mounting depth is 5.5" and the sub will work in a pretty small box. I would probably use something around .60 cubic feet. That's pretty darn small.

Here's what I would recommend:

http://www.woofersetc.com/p4992/ID10...-Subwoofer.htm

You would wire that to 4 ohms.

If you really insist on shallow mounted subs, have a look here to compare to the JL sub you were looking at as another option to consider:

http://exileaudio.com/products/subwoofers/?model=xt10

That will work in as little as .35 cubic feet.

Might want to consider that the optimal sealed enclosure for a JL TW5 is .80 cubic feet. I'm not sure what the minimum would be, but its something to consider.

If you're looking for a shallow mount SQ type subwoofer you should try to find a Stereo Integrity BM Mk III.

http://stereointegrity.com/index.php?id=47

The only thing is they don't have any more available so you'd have to try to find one used or someone who has a new one for sale. They get really good reviews. I think the mark iv is coming out but it won't be for a few months.

You are Learning GrassHopper! MONTE..... our X is growing up!

haha! I'm trying. Its an area I'm very interested in learning more about so I'll take all the feedback, input, advice, and wisdom I can find from people who have been there, done that, and know what's going on.

so .80 is optimal, anything bigger or smaller isnt good correct?

Generally speaking, it would be less than ideal. Will it work? Sure. Will it sound as good? No, it won't. Will you be able to tell the difference give or take .1 cubic feet? Likely not, especially if you won't be cranking it. However, these do have a recommended minimum and maximum. I posted minimums for the subs listed above. Anything below that minimum and it won't sound good anymore. I think depending on what you want, you need to stay within a given range that meets your needs.

I would imagine that in the case of a larger enclosure would be louder and allow more depth, while a smaller would be more compact but would be quieter and wouldn't play as loudly at certain frequencies as the larger box would. The way I see it, if you're going to spend that much for a quality sub, you're probably going to want to get the most out of it.

I know for a fact ID subs are known to be able to provide excellent quality and range from very small enclosures, which is why I mentioned them. For example, the IDQ's I'm getting are recommended at .75 cubic feet each, but they will work great to as low as .50 cubic feet. That's a very small enclosure, but apparently they perform excellently at that size because of they way they're made. Most subs don't have that ability.

if u start going to much bigger than "optimal" ur r getting into SPL dimensions. SPL or HO (high output) enclosures will always be quite a bit larger than "optimal". If u go to small, sound quality will suffer and so will output. Ur sub might actually sound blown (my 15" JL W0's did that). There is playroom between bigger and smaller than "Optimal". So u can find what works for you.

i called this morning and they are making the sub .80cuft, which is whats recommended by JL
it will be around 5" thick, and if fits right behind the seat.. im excited
looking for a sub as we speak, might buy one within the next few minutes