Full rebuild need advice/ opinions on wall

[varietyguy]

I knew as soon as I finished my build a couple months ago that I wanted more. So, in light of tax season I am doing a full rebuild. My original plan was to do 4 15's and 4 sundown 3k's. However I don't have enough room for that.

My external dimensions are 48X30X30 = 21.86 ft

I am completely open to any ideas.

My main 2 options I'm looking at are 2 18's (unless someone else besides me thinks that 3 will fit)

or 6 12's in a 4th order.

But I'm looking for other options and opinions. Goal is a daily SPL setup. Right now car is doing low mid 150's, I want 160's.

[varietyguy]

anyone?

[n8ball2013]

you are not getting to 160 with either of those. hate to say it but its gonna take alot more cone area nd power handling to do so.

[varietyguy]

That's why I'm looking for suggestions. Loudest I've metered was a 154.8 (not sealed) So I'm assuming by doubling my power and adding more cone area I should be able to gain at least 3-4 db if done properly. I still haven't deadened my doors or my floor. There are other factors too that I will increase my spl, like moving the wall forward 4 more inches, removing carpet from box, and prob going to tune box to 38 hz to more accomodate my peak.

But cone area is the one factor that I am having a hard time deciding on what to do. I really wanted to do 4 15's but I don't think that there is enough room.

[TeamHT]

2 AQ HDC4 18s on four AQ3500.1s

160? Maybe not, but will be loud. I also think that is enough room for 4 15"s

[varietyguy]

2 AQ HDC4 18s on four AQ3500.1s 160? Maybe not, but will be loud. I also think that is enough room for 4 15"s

So this is the design I have for 4 15's I did a little more tweaking and hopefully it will work. gross volume 22.39 port volume 3.03 port area 305.00 sq in net volume 19.36 tuning 38.00 wall will be 32 X 48 X 30 port will be 30.5 X 10 X 15

???? Thoughts ????