Subwoofer V2: Tutorial and FS, Keep your rear speakers!

[StereoInstaller1]

Glad I'm not the only one who had that problem.

No sir, there were 4 total that were wrong. Now that Justin is part of this deal, mistakes like that don't happen, because we build everything from jigs.

[NeoMishMoo]

Glad I'm not the only one who had that problem.

[StereoInstaller1]

Thread from the dead: This is what happened to mine. IDK if it is the way the box holes were cut, could be off or something, or if the measurements just aren't right. It does seem like the driver side needs for be cut like half an inch further, but like you said, the support brace is in the way. Still sounds good, but I'll have to figure out how to get that port seated properly. Might be some sort of flexible tube we could use.

Can you see when you bought that box?

Shoot me an email: sales@germanaudiospecialties.com

Thanks
Luke

[gtdragon980]

The driver's side just isn't lining up. The Bass port has to go in way diagonal to even almost fit. I have a junk car and I practiced on it. I rushed the first hole on the junk car driver's side, and when it didn't line up I thought maybe I got the measurement wrong but I was real careful on my car and it still didn't line up. It is almost like the hole needs to go a half inch more towards the drivers side of the car but that support brace is there. How much space should be between the bass ports on the box?

Thread from the dead: This is what happened to mine. IDK if it is the way the box holes were cut, could be off or something, or if the measurements just aren't right. It does seem like the driver side needs for be cut like half an inch further, but like you said, the support brace is in the way. Still sounds good, but I'll have to figure out how to get that port seated properly. Might be some sort of flexible tube we could use.

[NeoMishMoo]

The driver's side just isn't lining up. The Bass port has to go in way diagonal to even almost fit. I have a junk car and I practiced on it. I rushed the first hole on the junk car driver's side, and when it didn't line up I thought maybe I got the measurement wrong but I was real careful on my car and it still didn't line up. It is almost like the hole needs to go a half inch more towards the drivers side of the car but that support brace is there. How much space should be between the bass ports on the box?

[StereoInstaller1]

What is wrong with that fit?

[NeoMishMoo]

Crap well I've obviously messed something up here. The Passenger side lines up fine, but the driver side is about a half inch off. Do measure the same for both holes?

How much space should be between the holes? Mine are 2.75" apart. I measured just like instructed, and it appears that if I went over a half inch with the drivers side hole the bass port would be against the support brace. How much space should be between the holes on your box?

YOURS:

If mine do not look like yours I'm fucked?
MINE:
.
How is it that I still seem to be fucked?

[StereoInstaller1]

IMO, all of the woofers you are talking about work best sealed...but like you posted, about double the "recommended" spec.

The bitch with building a sealed box for the seatback type of install in an E30 is that the box basically needs to be 15" tall.

With that being the case, unless you make the box narrowrer than the space between the shock towers, you won't have enough depth to fit a 12" in there....too shallow.

The last one I built sealed (which the customer returned because it was not "punchy" enough) had a "step" outward on the back, where I nestled 2 amps.

If you built about 28" wide (the space is 36") you would be about 3.5" depth at the top and about 9.5" at the bottom, off the top of my head. That should give you depth to fir a type S, or even a type R.

Luke

[robspeed325i]

12" on the floor.

what about internal volume? I have a 12" Alpine type S sub with Qts of .6. Would that work? I am beginning to be convinced about the ported idea after reading some of your earlier posts i found via searching. pls be patient as im a newbie as far as e30s go. My car still has the steel punch-out panel behind the fold-down armrest in back, do i hammer that out from inside the car or via the trunk?

My other option is some Infinity reference 10s that i was thinking of firing through the seatback itself, after cutting some holes in the metal behind the seat. OR i could just use a singe 10 in the passthrough, but that would be a waste of a decent 12", wouldnt you say? edit: the 10s have Qts of .45..

[StereoInstaller1]

12" on the floor.

[robspeed325i]

Go out to your car with a tape measure. Place it against the rear seat brace, go 12" back from there.

And yeah, more boxes will have to wait for a while. I am having a hell of a time getting out of my shop and moved up to Seattle.

A single 10 version will be available then (like January or some shit, who fucking knows!) too.

Luke

by rear brace do you mean the top of the seatback, or the middle, or the bottom? thanks. :) what is the internal volume of the completed box, and could you make a sealed version instead of ported? thanks.

[HST]

Luke,

Didn't know where to post this since it looks like your pm box is full... Box came in today. This thing is freakin awesome. Great craftsmanship! And you weren't kidding when you said that woofer was beefy. I literally hurt my hand when i accidentally set the thing down on it. 500watts to that monster in this box and I am seriously afraid for my rear window.

Thank you again!

Is the woofer included?!?!?!?!

[cmflossin]

And yeah, more boxes will have to wait for a while. I am having a hell of a time getting out of my shop and moved up to Seattle.

A single 10 version will be available then (like January or some shit, who fucking knows!) too.

Luke

piss.

[silversleeper]

Damn, I dunno if I can wait that long. I might have to try my hand at speaker box building and get an equivalent setup of my own, at least as a temporary solution.

[StereoInstaller1]

Go out to your car with a tape measure. Place it against the rear seat brace, go 12" back from there.

And yeah, more boxes will have to wait for a while. I am having a hell of a time getting out of my shop and moved up to Seattle.

A single 10 version will be available then (like January or some shit, who fucking knows!) too.

Luke