Howdy,

I've been in the planning stages on this for a while and I think I've got it figured out. I'm going for 4 x BTL 12's Fully loaded in this wall:

The specs are like this:

19.69 cubes gross

16 cubes net (Subs and Ports removed) 4 cubes per sub

Tuned to 32hz with 266.875 sq. in. of port

I'd like to run dual 2 ohm BTL's and have each one off of a Orion HCCA-D5000 so roughly 2500 watts RMS per sub (10k total).

I'm planning to run all Knu Konceptz 1/0 wire with multiple runs to a battery bank of 6 Kinetik HC2400's in the trunk and 2 200 amp alts.

So my question is, do these specs look good for the subs and such?

Sounds like the perfect box for (4) 15's, not (4) 12's. . . .

personally i would make the box smaller...more like 2.5 cubes per sub THE MOST

and the power is fine..but later u might find urself wanting more power to be louderas far as port ..the current size of 266 and change is fine

80

personally i would make the box smaller...more like 2.5 cubes per sub THE MOST

and the power is fine..but later u might find urself wanting more power to be louderas far as port ..the current size of 266 and change is fine

80

I agree it may be a little too large. But I'd rather have too much room than not enough, right. But on the power situation I highly doubt I would up it much if any. I know tons of people are running huge amounts of power on these but I figured 2500-300 tops for a daily beater, and occasional bassracer. But if I make the boxes smaller I may run more power as the handlind should increase some, my reasoning for a power around RMS was because the box was pretty large to be throwing 4000 per sub and stuff. Thanks for the advice.

I have less airspace and less port area for my (4) 15's. . .

I dunno man, the box I built for my 15 Q, which is 4.8 cuft after port and displacement, i threw a little 150 watt 12 in it while waiting on the Q to arrive and the thing absolutely slammed. I dont really see a reason to not do it, just make sure you get the daily option on those BTL's, someone else has already made the mistake of getting the spl option when really using them for daily's.

I mean if you want to try it go ahead, always nice to experiment a little, but honestly if it was my i'd do 3 cubes per sub, should make them a little punchier i think...

Too big...stay within our recommended specs!

Why not put 15s in there if you have the room? Looks good other than that.

Why not put 15s in there if you have the room? Looks good other than that.

I have too agree with the group ! 4cf per 12 is way to bigg

2.75cf is all id do per sub

the power handling is fine on the BTL's, they love power and take power quite well. the box is way too big for the 12" version. BTL's have a lot of motor force behind them and overall are a low are space sub. 3 cubes per 12" tops (if you were doing this from the rear of the vehicle i would say 2 to 2.5 max) and from personal testing i would raise the tune in a wall. when we did the Monte in 7.5 cubes per BTL 18" at 32 hz tune we couldnt hold a note over 40 hz (seriously required 3k plus watts and we had 1800 per driver) and when i took the subs to 8 cubes per at 40 hz tune we actually gained lower end volume (150.5 at 27 hz, solid db gain over the lower tuning). remember a wall is applying pressure to a much smaller area of volume, the lows will naturally roll out with 2.5 to 3 cubes per driver. as Nick said, stay within the recommended specs (you can tweak a little with the tuning when dealing with a wall but the air space requirements are dead on).

So 2.5 cubes net per sub with a tuning around 38-42? I've never done a wall so I'm learning the acoustics and such of it. I just want loud as hell and low for daily.