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Need Dimentions to make a box for this subwoofer and i have no idea how you work it out to get the correct dimentions for this 8 inch v2 vibe space subwoofer this is the specs. of the speaker TS parameters for Exact 8 subwoofer Exact 8 RMS power 300 Peak power 900 Min, Input wattage 150 Diameter in inches 8? Z- Nominal Impedance in Ohms Single 4 Qts = Total Q factor of driver 0.475 Vas = Equivalent acoustic volume in cubic litres 30.514 Xmax = peak linear displacement of cone in mm 5.0 SPL = Speaker?s SPL 1 watt at 1meter in dB: 84.784 Voice Coil Diameter in inches 2.5 Mounting Depth in mm 110 Mounting Diameter in mm 185 Sd = Piston area in square meters 0.020 Cms = Mechanical suspension compliance 516.354 Mms = Mechanical mass of cone and free air load in grams 35.685 Qms = Mechanical Q factor of driver 1.180 Qes = Electrical Q factor of driver 0.796 Revc = DC voice coil resistance in Ohms 3.6 Fo = Free air resonance frequency in Hz 37.077 No = The reference efficiency of the system in % 0.189 Mmd = Diaphram mass in grams 34.010 Magnet weight in oz 30 Speaker displacement in meters 0.007 *

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  • jinglejan190 Jan 12, 2014

    i forgot i put this up did not build the box in the end i had some one else make me the box that knows what he is doing and he done a well better job than i could heaver do i have to say the box sounds nice



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Build a box with at 8"hole in it out of particle board, dont need to worry bout displacement
or check out this page for the formula, i aint doin the math

Posted on Mar 07, 2009


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1 Answer

My amplifier for gale 3090subwoofergot damaged, the speaker and the box still intact. I need replacement

It will be very difficult get the exact replacement for the subwoofer you have. If you sech in the internet you will get lot of subwoofer modules. Buy one which will fit in the dimension of the existing amp module..

Check the link for sub woofer modules

Subwoofer module

This module will be perfect for you if the dimentions are correct. If not then you have to do some cuts on the box to suit the same.


Mar 31, 2012 | Audio Players & Recorders

1 Answer

Can i have box dimentions for my 12" xplod sub

  • Warranty Terms - Parts 1 year limited
  • Warranty Terms - Labor 1 year limited
  • Product Height 12"
  • Product Width 12"
  • Product Weight 7.8 lbs.
  • Product Depth 6-1/2"
  • Subwoofer Size 12"
  • Resistance (Ohms) 4 ohms
  • Bottom Mount Depth (inches) 10"
  • Woofer Composition Mica-reinforced woven glass fiber composite
  • Woofer Surround Rubber
  • Peak Power handling 1300W
  • RMS Power Range (Watts) 380
  • Cutout Diameter or Length (inches) 12"
  • Sensitivity 84dB
  • Frequency Response 30Hz - 1kHz
  • found at:::----

Jun 04, 2010 | Sony Xplod XM-554ZR Car Audio Amplifier

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Sub box dimentions

12 " subs need 1.5 cubic feet sealed box...

Jul 17, 2009 | Volfenhag ZX-4812 Car Subwoofer

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I need Dogbone bearing dimentions

The outside edge of all bearings have a maker and bearing number i.e. "NGK2604". Get the number then go to an industrial bearings company. They can look up the bearing and see if it is in stock and if not, they can look up a matching bearing from a different manufacturer i.e. " SAS3107". The actual dimensions will likely be available at the same location. By the way, most people have no idea what you mean by "dogbone". Do you mean the crankshaft main bearings?

Jun 08, 2009 | 1997 Honda CBR 600 F(3)V

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What car amp to use to run 2 dvc subs

You need a stereo amp that can run 400amps
continous, with an output of 4 ohms. These should
not be too hard to find and they are getting smaller
all of the time. Make a practice look on ebay.
They give you pictures and you can check the dimentions first, so you know it can fit between
your two deck lids.

Apr 25, 2009 | Kicker CVR8-4 Car Subwoofer

1 Answer

Hi i have 2x alpine swr-1222d'd and need to build a ported box for them. I am running a alpine mrd-1005 to power them. I'm trying to work out how to use the program WinISD to work it out but really dont...

what you do is, you find the volume of the inside of the box, then go to a port calculating website and type in what you 100% sure your numbers are right, then pick if you want 1 or 2 ports, round or square, again be sure you get all the numbers right....if you dont, youll end up with sloppy joes in the trunk.......need any more help let me kno....

Mar 13, 2009 | Alpine Type-R SWR-1222D Car Subwoofer

1 Answer


You can contact Sharp at 1-800-BE-SHARP (1-800-237-4277) or visit them online.

They should be able to tell you what current model is comparable to yours.

We're happy to help you and we'd appreciate your thoughtful rating of our answer.

Jul 23, 2008 | Sharp R-1480 Microwave Oven

2 Answers


Hi Gott Mudd,


I can relate to feeling it in the bones. You got the stuff to do it.  You should try the Alpine MP3 head units with bass boost, those are bad to the bone.




Amp to Speaker I like to use the code VC for Voice coil, and AO for Amplifier output.  Also + for positive.  If I say VC1-, I am referring to the first connector starting left to right on the Alpine Sub. Now I have not seen a Kicker KX1200.1 amplifier.  All I see are MRA, MRP, or PDX prefix on the part numbers. So take what I am saying as a guess. You may want to revisit looking at the model of the amp to be sure your giving the right information.


We are going for  2 Ohms. Paralleling the two subs, not the voice coils. The voice coils will be series.  Bridge the amp if necessary to get mono channel. only using AO+ and AO- for output.


AO+ to Sub1VC1+

AO+ to Sub2VC1+

Sub1VC1- to Sub1VC2+

Sub2VC1- to Sub2VC2+

AO- to Sub1VC2-

AO- to Sub2VC2- 


Set your Crossover to LPF

Adjust the bass gain down to lowest until you test.

Set the Frequencies to midrange between 40 and 100hz  


Your box can be ported or not. It depends on the space your have.  If you do not have much room, go Enclosed and build a box that the inside space is less than 1 cubic foot.  Make sure you give barely  enough clearance for the speaker to fit.  If you have room, Go with a box and vent it with a 3 inch Vent tube 10 inches long.  

Oct 15, 2007 | Alpine Type-R SWR-1242D Car Subwoofer

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