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sub setup advice

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=55484
Printed Date: May 04, 2024 at 10:03 PM


Topic: sub setup advice

Posted By: davidh_r
Subject: sub setup advice
Date Posted: May 10, 2005 at 3:40 PM

I have a pair of round, single voice coil Kicker 15" solo-baric's (s15d) and a pair of kicker kx800.2 amps. Im looking to stick them in a 99 civic lx.
Manuals are located at:
subs (15" s15d)
https://www.kicker.com/05/tech-support/manuals/manuals/SolodMan.pdf
amps (kx 800.2)
https://www.kicker.com/05/tech-support/manuals/manuals/02KX300_400_500_800_2AmpManual.pdf

am i going to need a bigger battery/alternator to power these suckers? the current battery isnt physicaly very big, and i dont know how to tell how much the alt puts out. Im going to be using a poineer deck and the built in amp for the interior speakers. Also are there any places that tell you the best way to run wires through the firewall specific to car models? Any advice is appreciated. Thanks!



Replies:

Posted By: kfr01
Date Posted: May 10, 2005 at 5:09 PM

1)  What box do you plan to run the woofers in?

2)  Are the amplifiers class-d?

My advice:  If those are class a/b, sell them and buy a single more efficient class D mono subwoofer amplifier that is stable at 2-ohms. 

I don't think those amplifiers (especially two!) are very compatable with your car unless you are in the market for an electrical system revamp. 



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New Project: 2003 Pathfinder




Posted By: racer427
Date Posted: May 10, 2005 at 6:01 PM

I agree, those are not Class D amps and will put a major strain on the electrical system. Sell them on E-Bay and buy a 1250.1 Class D amp if you want to stay  with kicker.

Chris



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Alpine CDA-9833 HU
Diamond Audio M661 Components
MTX Thunder T6.6 Components:rear fill:
Cadence Q400 4 Channel Mains + rears
Thunder 801D Subs
MTX 1004 10's
Dual 4g wire to rear
4g grounds




Posted By: ss-installer
Date Posted: May 10, 2005 at 7:12 PM
should be a grommet on the passenger sid that you can run the wire through. (i think battery is on pass side).

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Posted By: davidh_r
Date Posted: May 10, 2005 at 10:39 PM
Battery is on passenger side. Sorry forgot to mention that the subs are 8ohm, and not in a box yet (these subs can only be put in a sealed box) does that change your opinions on the amp i am using? would 2ga wire be ok?




Posted By: davidh_r
Date Posted: May 10, 2005 at 10:47 PM
i am clueless as to how amp classification works. links?




Posted By: jdog0411
Date Posted: May 11, 2005 at 12:35 AM
Basically, most amps that are multi channel amps (designed to power at least two speakers, and sometimes 3,4, or 5 or more channels, are designed using "class a/b" circuitry, which is not very efficient (they make good power, but to do it they must draw a lot of current from your vehicle's electrical system). The higher wattage the amp, the more load on your electrical system. If you are planning on running a lot of watts to a subwoofer or multiple subwoofers, it is better to use a dedicated subwoofer amp that is designed using much more efficient "class d" circuitry. These are also referred to as monoblock amps. They don't require as much juice from the electrical system to produce power.

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2004 BMW 325ci.
Alpine CDA-9885
JL 300/4 and 250/1
JL XR 5.25 comps
Infinity Kappa Perfect 12





Posted By: davidh_r
Date Posted: May 11, 2005 at 5:02 PM
what kind of electrical system revamp are we talking about, what does it involve, est cost?





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