Question about Car Audio & Video
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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Posted on Jan 02, 2017
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Mar 13, 2009 | Alpine Type-R SWR-1222D Car Subwoofer
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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