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Fitting Big Subs, Into A Small Car (Dual Fi SP4 18", Golf MK3)


Max1636

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So I've got a MK3 Golf which before had a single Fi SP4 18 in a box designed by PWK. I've ordered a second SP4 which I'm planning on fitting in the car. I will be sacrificing two rear seats (the middle and right), but still want to keep the left.

(This ISN'T my car, just a picture from Google Images to give you an idea of what I'm talking about, the seat on the left I want to keep functional,

the middle and right seats will be folded down.)

Continue Reading Below Image...

bootbuild.jpg

The dimensions I can fit in that space is 1350x500x500mm or 53x19x19 Inch's (1 dec. pl.). I know this isn't enough, I can increase the height though or make sortof an L shaped box. Anybody got any idea's on how this could work?

(Old Car) 1995 Volkswagon Golf MK3 2.0L:

Fi SP4 18 On A DC Audio 3.5K In A PWK Box

Hertz DSK 6" Speakers, Clarion HU

3x Fullriver 120aH AGM's, 225A Alt

2012 Subaru BRZ:

Audison Prima APK 163

Bit One, Rockford Amps, Audison Sub

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Possible band pass but not sure you got enough space

What kind? I've never built a bandpass before but would definitely be willing to do it.

(Old Car) 1995 Volkswagon Golf MK3 2.0L:

Fi SP4 18 On A DC Audio 3.5K In A PWK Box

Hertz DSK 6" Speakers, Clarion HU

3x Fullriver 120aH AGM's, 225A Alt

2012 Subaru BRZ:

Audison Prima APK 163

Bit One, Rockford Amps, Audison Sub

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I Know, I know, the RE Calculator is not entirely accurate. But how does this look? I've never built a box with such a small port. How will it affect the sound?

MK3BoxDesign_zps2dc16194.png

(Old Car) 1995 Volkswagon Golf MK3 2.0L:

Fi SP4 18 On A DC Audio 3.5K In A PWK Box

Hertz DSK 6" Speakers, Clarion HU

3x Fullriver 120aH AGM's, 225A Alt

2012 Subaru BRZ:

Audison Prima APK 163

Bit One, Rockford Amps, Audison Sub

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Found some more room.

DualSP4V2_zps5251b833.png

(Old Car) 1995 Volkswagon Golf MK3 2.0L:

Fi SP4 18 On A DC Audio 3.5K In A PWK Box

Hertz DSK 6" Speakers, Clarion HU

3x Fullriver 120aH AGM's, 225A Alt

2012 Subaru BRZ:

Audison Prima APK 163

Bit One, Rockford Amps, Audison Sub

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do a box that will stretch from the front where the seats your taking out goes to the back then do a slot port right behind the seat your leaving in the car as an external port.

t1500bdcp

2 t2d4 15"

1 t600.4

1 t400.2

1 set p1 tweets

singer alt, tons of wiring, smd vm-1, 80prs, back seat delete, still in the works, aiming for a 145-147 with the ability to play 25hz up to 50hz.

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do a box that will stretch from the front where the seats your taking out goes to the back then do a slot port right behind the seat your leaving in the car as an external port.

I get what you mean that could work. I would probably have to learn to use a tuning calculator though. Thanks.

(Old Car) 1995 Volkswagon Golf MK3 2.0L:

Fi SP4 18 On A DC Audio 3.5K In A PWK Box

Hertz DSK 6" Speakers, Clarion HU

3x Fullriver 120aH AGM's, 225A Alt

2012 Subaru BRZ:

Audison Prima APK 163

Bit One, Rockford Amps, Audison Sub

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Big subs small car = wall

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Big subs small car = wall

This is exactly what I wanted to do, but I want to be able to see out that back easily. I thought it would be a big inconvenience having it blocked.

(Old Car) 1995 Volkswagon Golf MK3 2.0L:

Fi SP4 18 On A DC Audio 3.5K In A PWK Box

Hertz DSK 6" Speakers, Clarion HU

3x Fullriver 120aH AGM's, 225A Alt

2012 Subaru BRZ:

Audison Prima APK 163

Bit One, Rockford Amps, Audison Sub

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You get used to it to be honest.

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Share on other sites

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