Project, 16 8's in a Bandpass IB Clamshell...In a Stratus.

[Rawr-DQ 10+ year member]

thanks!

more pics soon

 

[Rawr-DQ 10+ year member]

 

[Rawr-DQ 10+ year member]

Anyone interested in T-nut kits?

I've ordered 200 screws and 200 t-nuts because I need 128 of each.

So that leaves me with 9 sets (72), 8 screws/t-nuts each.

 

[JBLCAMRY 10+ year member]

Anyone interested in T-nut kits?
I've ordered 200 screws and 200 t-nuts because I need 128 of each.

So that leaves me with 9 sets (72), 8 screws/t-nuts each.

how much per set, i might be able to use some.

 

[Rawr-DQ 10+ year member]

I'm thinking like 6-7 bucks shipped 48 states

 

[stuckinok 5,000+ posts]

looking real good man!

 

[DaGh0st 5,000+ posts]

Looks good bro, i wish i could glass.

 

[iamamp3pimp 5,000+ posts]

how do theyh work

would they work in 1.5 inch think wood?

 

[mdillon 10+ year member]

concerned about the rearmost midbass in that door: will the door close? it looks lower than the bottom of the panel. and do you have your tweeter placement figured out yet?

 

[galacticmonkey 5,000+ posts]

How is an IB even possible?

A bandpass is a sealed chamber and a ported chamber. A IB is just subs mounted in a baffle, with no enclosure. Just to seperate the front and rear waves.

If the sealed chamber is open into the trunkspace and not enclosed, then its just a ported box with the port firing into the cabin and the subs firing into the trunk.... And not a bandpass.

If the sealed chamber is enclosed and the better part of the whole trunk, then its just a bandpass with a smaller ported chamber and a HUGE sealed chamber.... And not IB.

It could be a ported chamber in the front, and a ported chamber in the rear... Then thats a dual bandpass, where each chamber is ported seperately, but not ported into each other. Its like an 8th order, but there isnt a port connecting the 2 seperate chambers. But seeing that this isnt the case, this isnt even really an option.

And since theres really no way for it to be a bandpass AND IB at the same time, I dont really see how you can combine the two. Thats like saying you have a sealed ported box. Its just the basic design of one makes the other impossible.

 

[ContourSPL 10+ year member]

^ditto. I think it would have been better off just a sealed enclosure. Never understood the whole bandpass part....

 

[kurrupt 10+ year member]

i think he stated earlier in the thread that it was something different just never changed the name

 

[galacticmonkey 5,000+ posts]

Oh, I havent really looked at it...

Not dissing him or anything like that, just saying that an IB Bandpass is theoretically impossible.

 

[Rawr-DQ 10+ year member]

how do theyh workwould they work in 1.5 inch think wood?

The screws are 1.5"s long, and the threads of the nut go in 5/16" of an inch..

So if the speaker's rim is less than 5/16ths" thick, it will make it to the nut, if the mounting ring of the basket is 1/8" thick (my tc lms 5400 is) it will have 3/16ths" of thread if you put the t-nuts halfway in the baffle (did this once) then they would definitely work.

 

[Rawr-DQ 10+ year member]

concerned about the rearmost midbass in that door: will the door close? it looks lower than the bottom of the panel. and do you have your tweeter placement figured out yet?

Tweeters I think I will put them in my A-pillars, the door is kinda close but should be okay, thanks for noticing though!

How is an IB even possible?
A bandpass is a sealed chamber and a ported chamber. A IB is just subs mounted in a baffle, with no enclosure. Just to seperate the front and rear waves.

If the sealed chamber is open into the trunkspace and not enclosed, then its just a ported box with the port firing into the cabin and the subs firing into the trunk.... And not a bandpass.

If the sealed chamber is enclosed and the better part of the whole trunk, then its just a bandpass with a smaller ported chamber and a HUGE sealed chamber.... And not IB.

It could be a ported chamber in the front, and a ported chamber in the rear... Then thats a dual bandpass, where each chamber is ported seperately, but not ported into each other. Its like an 8th order, but there isnt a port connecting the 2 seperate chambers. But seeing that this isnt the case, this isnt even really an option.

And since theres really no way for it to be a bandpass AND IB at the same time, I dont really see how you can combine the two. Thats like saying you have a sealed ported box. Its just the basic design of one makes the other impossible.

You're absolutely right, I never thought about it, was just making a title that I can't change anymore lol.

...hmmm well with a ported box, the sub and the port combine making it a ported box.

this setup separates the wave from the ported side, thus acting as a 4th order w/ a giant sealed chamber on the other side which acts like an IB...?

lol I dunno.