If anyone is willing to punch in some numbers to your box program I,m looking for a pure sq box with plenty of snap in the kicks . Thanks in advance.

Jl audio w6v2

Free Air Resonance (Fs): 25.0 Hz
Electrical “Q” (Qes): 0.480
Mechanical “Q” (Qms): 7.100
Total Speaker “Q” (Qts): 0.450
Equivalent Compliance (Vas): 2.82 cu. ft. / 79.9 liters
One-Way, Linear Excursion (Xmax)*: 0.65 in. / 16.5 mm
Reference Efficiency (no): 0.250%
Efficiency (1W/1m)**: 85.9 dB SPL
Effective Piston Area (Sd): 77.8 sq. in. / 0.0502 sq. m.
DC Resistance (Re): 6.75 ohm***
Nominal Impedance (Znom): Dual 4 ohm
Thermal Power Handling (Pt): 400W
Driver Displacement: 0.090 cu. ft. / 2.5 liters

 

whats the BL ?

 

There site doesn,t list it , thanks for trying though .

 

According to winisd the BL is 10.49
Must be pretty spot on.

 

monday bump...........................someone please......................

 

pretty please .................maybe with a cherry on top

 

I found that for my 10w6v2, the volume suggested in http://mobile.jlaudio.com/pdfs/7876.pdf for a sealed box was just about right (according to WinISD Pro). However, to get a bit lower F3, I ended up putting 3/4 of a pound of polyfill ($4 at Fabricland) into the box to trick it the sub into thinking it was in a .1 cuft bigger box (effective .75 cuft). WinISD shows a smooth rolloff from around 45 Hz, but in the car, given the transfer effect at my listening position, the bass just starts to roll off (actual F3) at 31 Hz. F10 is at 20 Hz. It's pretty much flat down to actual F3, and if I had your deck, it would be even flatter. I'd suggest using JL's suggested spec of 1.25 cuft for a 12w6v2 sealed. Add a little eq at 65+ Hz if you need more snap?