[Need box help HDC3 12]

So the box is already built?

[Does ths look right for 4 15s??]

Click the help button up top and find out. post a picture of what you come up with next

[I need your opinion about my sound system plan]

Gorilla tape adds deebees

[Does ths look right for 4 15s??]

AND you need to factor in number of common port walls. click the help button up top. we'll start there.

[Does ths look right for 4 15s??]

ohhhh dear.

[I need your opinion about my sound system plan]

Thor's setup is sexy.

[what size subwoofer]

that's a little more than 1k to each.

[Long time reader, first time box builder]

you want a sealed box figure out how many cubic feet you want. LXWXH/1728 and then subtract displacement. What part are you hung up on? Being disappointed once you do it?

yes exactly. I'm not worried about the dims, I know it's possible. I'm just worried that 6 cu ft of air is going to sound like total ass.

I gave you a design that will sound amazing. especially compared to your current box. It is well within your current dimensions. In fact, i didn't max out a single one. IF you can manage to get that in the trunk, it will sound louder, and lower than any sealed box you build.

Just build it.

[4 l7 12s]

Habbits of my trade I reckon, over engineer everything,

how often do you build boxes? You're gonna learn a lot more building than you ever will reading. I guarantee you that.

[what size subwoofer]

I personaly think 2 15s will push more air more flex. But do you have the power for 2 15s. Its up to how much electrical you have. Imo.

lol subwoofers don't draw power, amps do. you can power the 15's with any size amp.

[4 l7 12s]

Lenny's 6 SMD 18's are built with only two baffles and single layer everywhere else. he's just got some serious bracing.

[Long time reader, first time box builder]

lol probably won't. He won't have much luck with a sealed box either. i've worked with a few trunk cars. the opening from the seat to the trunk probably isn't more than 16 high. mine is 13 high and i have a 17" high trunk

[Long time reader, first time box builder]

Again, good luck fitting that in the trunk. But that will walk all over your prefab box.

[Long time reader, first time box builder]

you know what, i'm feeling generous. build a ported box to these specs,

should look close to this

[Long time reader, first time box builder]

There's people on this forum (like me) who can help you with a ported box design. the problem with your prefab box was the tuning and port area. tuned to high for your preferences, and not nearly enough port area. I guarantee you a ported box with one of those will sound better and get lower than two in a sealed box. might even be louder.

But if you want to build a sealed box so badly, then do it. 5 cubes net and good luck fitting that sucker inside your trunk.

Does that answer your question?

[so when do you call it?]

I'll join you at Murphy's......

On my way there now..

Maybe murphy's law applies here

[so when do you call it?]

When 3500 worth of subs, amps, headunit, etc get stolen and you dont have a job to make money quickly. I take a year break to save up then go at it again.

next time with a better security system.

[so when do you call it?]

Take a week or two off. Clear your head, then come back at it unstressed with an open mind.

[so when do you call it?]

Depends on what said "chick" looks like

[4 l7 12s]

Missed that part. It would be a good idea to brace the baffle. a couple dowels or some all thread placed vertically inbetween subs would be a good idea

[4 l7 12s]

sub displacement would prolly be closer to .6 i'd imagine, but it wouldn't change much.

[non SMD Ascendant Audio Grunge Wallpaper!]

that was quick lol

[I need opinions]

I can help you design one, just PM me.

[I need opinions]

just do a downfiring ported box.

[Breaking in subwoofers?]

How do "professionals" spend an hour to do something like that? and $80 bucks is over half the cost it would take to do it yourself.