Help on my BMW e36 Coupe Reflex Project!

[DjDecibel 10+ year member]

Hello!

i just bought a bmw e36 Coupe, and this is the problem.. it has a sealed trunk!!! the only holes between the trunk and the car interior are the original 4" speakers holes!

The list:

Vehicle : BMW 325i e36 Coupe

Location in the vehicle: Trunk

Space available (Length x Width x Height):

Subwoofer make and model: Spl Dynamics Pro 12D2

Subwoofer Size: 12"

Number of Subwoofers: 2

Type of Port (Kerfed, Slot, Aero, etc.):

What type of music do you like?: Techno / Hip Hop / HardStyle

Is your goal SPL or Everyday Music?: EveryDay Music

Tuning Freq (Hz):

Volume :

i already own:

2 X Spl Dynamics PRO-12D2 MK-3

Size: 12 Inches

Power handling (RMS/Peak): 500/1000 W

Nominal impedance: 2 x 2 Ohm

Mounting depth: 6.62 inch

Mounting diameter: 10.87 inch

Magnet diameter: 6.7 inch

Magnet height: 1.58 inch

Magnet weight: 130 oz

Voice Coil diameter: 2,56 inch

Voice Coil Type/Material: DVC/BASV

Fs: 29 Hz

Vas: 1.907 ft^3

Qts: 0,42

Qes: 0,44

Qms: 6,1924

Xmax (lin/peak): 0.67/1.34 inch

Re: 2 x 1,8 Ohm

Mms: 217 g

BL: 18,1 TM

SPL (1W/m): 86,8 dB

Box suggestions:

Closed box 0,918 - 1,413 ft^3

Bass-Reflex box 1,130 - 2,119 ft^3

here's my idea: a reflex sloped box with thos 2 subs and the vents on the seats side, so i will open the rear seats when volume is up

like this

can anyone help me with my project?

how many liters should it be?

Click to read more...

 

[mylows10 5,000+ posts]

Does your car have the ski hole between the back seat. For the arm rest. If so that where you can port it into the cabin

 

[DjDecibel 10+ year member]

no, it doesnt have it, but i will open the rear seats like in picture almost all the time

 

[DjDecibel 10+ year member]

any help?