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This is from back in October, once the weather gets warmer I will be doing more work.
I have been spending a some time as of late working on my car audio install into my newly acquired 2003 Spec V.
Here is my work:
Equipment Pictures
Headunit
Alpine IVA-D310 (www.alpine-usa.com)
Amplifier
US Amps XT2000d (800Wx1@1ohm) Class D Amplifier www.usamps.com
RESERVED FOR PIC
US Amps XT1600.4 (125Wx4@4ohms) Class AB Amplifier www.usamps.com
Subwoofers
Mach5Audio MAW-10 www.mach5audio.com
Front Stage
Alpine SPX-177A 2-way components (no pictures at this time)
Wiring
Knukonceptz wiring throughout. www.knukonceptz.com
Started with the factory 2003 Spec V stereo.
I am not going to be picturing some facets of the installation, for security reasons.
First things first, I installed the headunit... the brain of the whole operation.
Bad picture... get one in daylight when I can.
Next, I ran all of the wiring.
I decided to use 1/0 cable for carrying the necessary current to the amplifiers. I picked 1/0 wire because the amplifiers I chose can require upwards of 200A at full output.The 1/0 is fused about 18" from the battery, with a 250A fuse. There is a PERFECT spot for 1/0 wiring on the passenger side, behind the glovebox, so that was where the wire was ran, strapped to firewall.
Ran all RCAs, remote, and power wiring up the passenger side, and into the trunk for the amplifiers. Still have to get to the component installation, which includes the crossovers, amplifier, and drivers. Front stage amplifier (XT1600.4) will be arriving on the weekend, and the installation will start then.
In the trunk, the 1/0 cable is distributed using KonFUSED 2 Way Distribution System from Knukonceptz. The distibution block provides fusing capability as well, so the amps are also fused here, 120A for each. From there, each amplifier is provided a short run of 4ga. wire. The grounding to each amp is provided by seperate short runs of 4ga. wire to the chassis.
No pictures exist of the wiring work yet, may get some at the time I tear the interior out for the sound deadening stage.
For the subwoofer installation, I chose 3 Mach5Audio MAW-10 10" drivers. Click for specs
I wired each subwoofer's voice coils in parallel, therefore, each subwoofer is a 2 ohm nominal impedance. The subwoofers were then wired in parallel, making a 0.667 ohm nominal impedance load to the US Amps XT2000d Class D amplifier. Estimated power output at this impedance is 1200W RMS, therefore providing each driver ~400W of clean power.
I chose to use an enclosure volume of 0.5ft^3 for each driver, or 1.5ft^3 gross. It provides this response when modelled using BassBoxPro6.
With the estimated cabin gain of a small car, like the Spec V, the in-car response will be nearly flat @ 0dB right from 10Hz to my chosen crossover point of 70Hz (-12dB/oct).
Now.. to the installation!
The enclosure needed to get me the desired 1.5ft^3 gross volume for the drivers, I needed to make it 40"W x 7.5" D x 14" H. Each woofer displaces approx. 0.06ft^3 of volume. Used 3/4" MDF, decking screws, and wood glue.
Now for some pictures!
What I started with:
A quick picture of the false floor I made for the trunk... used 1/4" MDF, and attached the factory trunk carpet to it.
Spare tire is no longer there, and became the home for the amplifiers.
Enclosure!
Woodshop at work:
Front & back of the enclosure all cut... I love table saws:
Some progress:
Test fit:
MMM, woofers:
Holes cut... enclosure nearly complete:
Woofers installed!
Amp Rack... where the spare tire once was:
Enough room for both the XT2000d & XT1600.4... all hidden under the false floor. Stays plenty cool under there as well!
Enclosure installed, and ready to rip
The enclosure front will be wrapped in some silver vinyl, and a trim panel will be made, and covered in black vinyl, a custom grill will cover the woofers, and lit by a plethura of blue LEDs in short time.
This thread will be updated as I progress more.
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