View Full Version : Does this make any sense???

03-29-2008, 03:47 PM
I went to subwoofer tools.com and entered my woofers parameters. It's a Kove Armageddon U series 12". This is the box design it gave me. It will be in a '95 Geo Metro Hatchback, so space is an issue. I am wondering if this seems right. Thanks in advance.;)

03-29-2008, 04:17 PM

03-29-2008, 04:30 PM
I used a tuning frequency and cubes to determine my box. The stuff there is kinda weird sometimes. Also if you have manufacturer specs for a box they normally know what goes best.

03-29-2008, 04:32 PM
That's what I used. The specs for the sub I'm using. I don't want to build this if it's all wrong. Wondering if the calc is worth a crap.

03-29-2008, 04:32 PM
high tuning

03-29-2008, 04:35 PM
Any way of tuning it lower and not gaining any size? It's going to be a daily and also using it for bass race comps, not spl.
Current size shows 37.98 Hz tuning.

03-29-2008, 05:01 PM
just skip the specs and put in ur recommended box size and tuning

03-30-2008, 01:15 AM
then vary the xmax number to get the desired port size.....

03-30-2008, 02:08 AM
Try this:

Enter in the values...

External Box Width: 26.5
External Box Height: 13
Nominal Diameter: 12" Round
Woofer Xmax: 18 mm
Driver Displacement: .3 Cubic Feet (per woofer)
Number of woofers: 1
NET Box Volume: .84 Cubic Feet
Desired tuning frequency: (Whatever is your desired tuning frequency)
Bottom section: Leave blank

Hit calculate panel dimensions

Report back to us and tell us what you got.

03-30-2008, 07:32 AM
Tried those values...Fairly long port, but looks good. Only 1/2 a sheet of MDF too;) Just in case. I'll give it a try. Thanks guys:D Oops... Messed up and didn't see that I had put in a 6.5" instead of a 12" sub. Now it is too deep. I only have 17.5" to work with and it calls for 22". Here is what I have for max dimensions. 28"L x 13"H x 17.5"D. If you feel like throwing me a design, and it looks good, I'll send some $$ your way. Sub will be getting close to 1300 WRMS @ 2 ohm. Sub has DVC 4 ohm coils.

03-30-2008, 07:42 AM
Let me know if this helps...
Specifications: *Power Handling: 800 watts RMS *VCdia: 3" *Le: 2.5 mH *Nominal impedance: 4 ohms per coil *Re: 3.0 ohms *Frequency response: 20-300 Hz. *Magnet weight: 192 oz. *Fs: 34 Hz *SPL: 90 dB 2.83V/1m *Vas: 1.2 cu. ft. *Qms: 5.33 *Qes: .39 *Qts: .36 *Xmax: 18 mm *Dimensions: Overall Diameter: 12-1/2", Cutout Diameter: 11", Mounting Depth: 6-3/4", Magnet Diameter: 8", Magnet Height: 3-1/8"
Here are the specs of the sub I am using.

03-30-2008, 09:07 AM
bump...for assistance