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Hey guys im new to the forum, I have used this page for reference from time to time such as changing my timing belt. I have a question for you guys that no other thread seems to answer. I know its not an earth shaking system but hey it was given to me and nothing is wrong with it so I'm just putting it to good use.

Ive been given some subs, two amps for free and am getting ready to purchase some stuff to get the ball rolling.

MTX TA421D 361 watts X 1 channel 2ohm (via certificate)

Kenwood KAC-646X 25 watts X 4 channel 4ohm

*I dont have much info on the subs, they are infinity 12inch subs, i figure both are 4 ohm since the gotta be wired to a one channel amp(421D) or am I wrong.*

So my max RMS would/could be 461 watts correct???


My hooptie is 2001 civic, I've read the stock alt puts out 70amps; would running 461watts RMS be OK to run? Seems like it would be no sweat, but hey what do I know...

I also have an opportunity to get a Kinetik HC600 Power Cell for a really good price.

http://www.kinetikaudio.com/2009/pro...p?P=KHC600&C=1

Tell me what you guys think. If the ball gets rolling i'll be glad to put on some installation pics for reference or anything. thanks.

 
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500RMS for our civics is nothing

Kenetics are power cells, not batteries, if you replace your batt with a power cell, cranking may be reduced
Power cells are secondary batterys (like a strong capacitor) to power audio systems


I looked at the specs of the MTX TA 421D:
It's rated at 150RMS 4ohm, and 300RMS 2ohm

Assuming you have dual coil infinity 4ohm subs, you can wire them to 2 ohm to achieve 300watts rms

 
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The certificate the 421D says its rated @ 361, IDC its free so its all good. Correct they are both DVC, I'll have no prob wiring them up, all I need is a 4gauge ampkit.

Ah I did not know the diff b/t power cells and batteries, now I do.
Thanks a bunch!!

 
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Most audio ratings are underrated because of their "stability". most amps can push more than they say they can.

Read this DIY to properly set your amp

https://www.civicforums.com/forums/1...-tutorial.html

Btw, if you're planning to run both amps, i would look into a 0~2 gauge wiring kit, and a distribution block

 
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Good idea i'll do that because I might upgrade in the future. Do you have any idea what the stock 70amp alternator can handle?

 
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it barely handles the stock electrical components. over 50 amps is used just by normal car functions.

 
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If I do upgrade I'll put in some research. But not anytime soon "in this economy" im really glad i dont have to purchase anything major for something i got for free.

I've rigged up solo amps before, +i can use a DIY here for my civ, but I've never hooked up TWO amps w/dual amp kit. Is there anything specific for installing two amps to be aware of when installing it?

 
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a multi amp wiring kit, or a distribution block

Make sure you dont stack the amps, and give them enough room to breath

 
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I found this exact representation, minus the capicitor and +1woofer, of the system i'll be running on crutchfield.

I dont have to get a ground block right. Can't I just ground the both amps straight to the chassis? Oh and my HU has 3preamp pairs of RCA (Pioneer DEH-780mp) so I can run seperate RCA's to both amps.

 
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Yea, you dont have to get a ground distribution block, but either ground both amps at different locations, or have the ground terminal of the mono amp under the ground terminal of the 4 channel amp

so, ground of mono amp closer to chassis

 
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ground distribution block is cheap, i might as well get one lol. im probably gonna rig one under passenger seat, and the other on the sub box. Ive only installed subwoofers and have no experience with speakers. When its all said and done, what do i do with the stock speaker wire that unused? Just cap it?

 
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Well, its an adapter, so you dont have to seal it up with electric tape or anything, i'd just leave it hanging in the door, or wrap it in some kind of foam to prevent it from knocking around in the door

 
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I just realized something while in class (college) today. I should check to see if the sub box (two 12inch ported) will fit. doh!

 
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2 12" ported might be cutting it a bit close, make sure u measure the bars that hold up the trunk as well, not just the trunk space

 
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Just got done putting the subs in, and theres plenty of room, trunk lid closes and all. Everything is a GO from here it seems like. When I get all the stuff ordered and lined up i'll take pics of the install when the time comes and post it. Thanks a lot guys this forum is awesome.

 
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No problem-o
update us with pix