RAM_Designs

Depends on your listening habits and how well your little Camry alt can keep voltage from dropping too low. Because it will drop, it's just a matter of how much.

The lvl3 15 is a solid sealed box sub.

Indeed. I love my 8V Eclipse.

I'd either do that or find a way to get at least 7ft^3 for all four.

There are some new VR4000D's for sale at ca.com. Brand new for $750. He said OBO, so he'd probably take $700 if you said you could pay him today... http://www.caraudio.com/forums/amplifier-classifieds/503736-fs-crossfire-vr4000d-bnib.html

You definitely have plenty of room to work with.

There are tons of other variables, but it can be the case sometimes.

Normally a low-line sub is going to be better suited in sealed/IB boxes(Eclipse and Infinity come to mind). They'll generally have a pretty low fs, but a higher than normal qts value...good for sealed/IB, but makes them peaky in small ported boxes in a lot of cases.

I haven't personally messed with the Hifis, but I've heard from people that have that they prefer larger boxes.

He wants to be heard rattling down the street, doesn't everybody?

Ummm...

I doubt you'll be able to get a ~9ft^3 box in there for a pair of 15's and still have room around it to breathe. I'd stick with some solid 12's...SSA Icons or SA-12's are a good choice. A lot of times in truck cars less is more.

Glad you're happy with the upgrade...I agree with Treo being over priced for what it is, but there's a lot of companies like that.

For two do an 8ft^3 common chamber box tuned to 35hz.

Let us know what kind of dimensions you're working with.

Find a used sundown 3000D or something along those lines. The 3000D will run .67 all day long so long as you have the electrical to back it up. I don't know how much shipping would be, but they're going for around $500-550 + shipping these days. Or you can do the AQ 3500 if they ship to Aussie land. Either one of those will give you plenty of power and can handle that .67 ohm load just fine.

Just get the 4000 instead. This here is Backyard Spl my money aint long I've seen the 4000's go for $600-700 on the forums, when they show up.

Just get the 4000 instead.

8-9ft^3 common chamber tuned to ~33hz.

The old VR's and CFA's were very nice.

Do you already have the box built and you're wanting to add external aeros? If not I'd just do a slot port. Aeros just get too long if you're wanting to tune low while using a good amount of port area. And you'd save money with a slot port as well.

Well you can do that with a single sub if you want.

Just that the port is going to be tricky with such a shallow box. You won't be able to just run a port vertically up one side or the other because you'll have either too skinny of a port, or too long of a port in the effort of making it not too skinny. You could do a port up high or down low than doesn't span the whole width, something like 30"x4" or something in that area. You could do the same on the sides but I think it'd look more out of place on a side.

how much would i need for it to be like steves Don't know what you mean exactly...

You definitely have enough space with those dimensions, but that 15" depth is going to make it kinda hard to not have the port directly behind a woofer.