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Just purchased 2 12"Type R Subs 

 

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Posted: Thu Feb 10, 2005 12:52 am 
Parts Gopher
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thanks dmac and vibrate for all your replies and help. Ill get building the box next weekend.
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Posted: Thu Feb 10, 2005 10:16 am 
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Ok the things to do are as follows

Make a baffle out opf 15mm MDF that seals the boot from the cabin. Mount both subs to that firing into the car and buiild the box behind that. If it is sealed properly you will not loose bass into the boot. Rear loading of subs works well in hatchbacks and liftbacks but not in sedans and tests reflect this.

Both subs shoul,d be in the sma eenclosure so if 35litres is the reccomended encolsure size then double that and thats the size you should have. If they are in the same box you will get the coupling effect and this can produce another 3db.

Cardboard first is an excellent way to do it and i always use this method.

 

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Posted: Thu Feb 10, 2005 2:24 pm 
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pyroay wrote:
Ok the things to do are as follows

Make a baffle out opf 15mm MDF that seals the boot from the cabin. Mount both subs to that firing into the car and buiild the box behind that. If it is sealed properly you will not loose bass into the boot. Rear loading of subs works well in hatchbacks and liftbacks but not in sedans and tests reflect this.

Both subs shoul,d be in the sma eenclosure so if 35litres is the reccomended encolsure size then double that and thats the size you should have. If they are in the same box you will get the coupling effect and this can produce another 3db.

Cardboard first is an excellent way to do it and i always use this method.


Sorry, let me get this right. So i put a 15mm board accross where the 60/40 seats fold down so its air tight? Then i face the subs into this board

Back seats
_____________________________ Board

........[-------]............[-------]........Subs
|...................... |...................... |
|...................... |...................... | Sub box
|...................... |...................... |
|...................... |...................... |
-----------------------------------------.

Rear of boot

Is this correct? if so how much space do i need between the baffle and the subs?

Pyroay I'd love to see some shots of your set up. please email them to j_tanasi@hotmail.com if you could
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Posted: Thu Feb 10, 2005 3:32 pm 
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XRLENT6 wrote:
Sorry, let me get this right. So i put a 15mm board accross where the 60/40 seats fold down so its air tight? Then i face the subs into this board

Back seats
........[-------]............[-------]........Subs
_____________________________ Board
|...................... |...................... |
|...................... |...................... | Sub box
|...................... |...................... |
|...................... |...................... |
-----------------------------------------.

Rear of boot

Is this correct? if so how much space do i need between the baffle and the subs?

Pyroay I'd love to see some shots of your set up. please email them to j_tanasi@hotmail.com if you could


Like that with the subs firing into the cabin but the back of them being the box itself.

I'll e-mail you some info and a pic of my system although i have a single 15" instead of 2 x 12"s

 

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Posted: Tue Apr 12, 2005 9:41 am 
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hey pyroay, i am attempting a similar setup in my EL XR. i was wondering if you could send me the same pics and info on installing the baffle behind the rear seat. my email is mickysacca@hotmail.com
thanx in advance
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Posted: Tue Apr 12, 2005 11:32 am 
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This is a similar setup to what I would like. I have been told that leaving your seats up with this setup can reduce the life of your subs because of the increased pressure in front of the cones.
Is this correct?

If so, would it be hard to build the box back just a little bit, say 10cm and then build the sides and top with extra bits so the subs still "seal" into the cabin thru the seats? Or is this just a waste of time / money / bootspace?
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Posted: Mon Apr 18, 2005 3:37 am 
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hey pyroay,
im also interested in those pics, i live lakes entrance,
my system is:

Pioneer 8750mp
pioneer yellow cone 6.5" splits
pioneer Yellow Cone 6X9's
2X12" Rockford Fosgate subs

dont hav amps yet...:(

please send pics
danielhm1@hotmail.com
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Posted: Mon Apr 18, 2005 3:45 am 
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raabz wrote:
This is a similar setup to what I would like. I have been told that leaving your seats up with this setup can reduce the life of your subs because of the increased pressure in front of the cones.
Is this correct?

If so, would it be hard to build the box back just a little bit, say 10cm and then build the sides and top with extra bits so the subs still "seal" into the cabin thru the seats? Or is this just a waste of time / money / bootspace?

wtf are they giving you mackay boys to smoke these days???? find out whoever told you that, and tell him he's a f**k moron

provided the subs have sufficient room between the cone/surround and the back of the seat, there's no problem, something like 20-30mm will be fine

 

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Posted: Mon Apr 18, 2005 7:04 am 
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You know, I kinda thought that might be s**t. We have some wankers in our stores here. We only have Autobarn, Strathfield and the top-end StereoSales (The only alpine place here).

Well, I guess I'll go ahead with the box up against the back of the seat!

Let's just hope the Amp I'm waiting for is as powerful as what it says it is.
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