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Discussion Starter #1
First off, I have no idea about sound systems. Two of my older brothers have installed them, but I can't seem to get them to talk to me (they live in other states) long enough to figure out what I am doing. I'll be graduating high school at the end of the month and am going to reward myself with upgrading the crappy speakers I have in my LT.

This is the setup I am looking at installing:
Front speakers: Kenwood eXcelon KFC-X132 5-1/4", 150watts/each
Back speakers: Kenwood KFC-6982ie 6"x9", 500watts/each
Sub: Kenwood eXcelon KFC-XW1222D 12", 2000 watts dual 2 ohms
Amp: Kenwood eXcelon KAC-X4R, 1200 watt max, 4-channel
(I'm a Kenwood guy, by the way)

So, first things first. Are 5-1/4" and 6"x9" after market speakers the proper size to replace an '06 LT's speakers? I looked around, and this is what I found to be the correct size. Just want to double check.

Second, I'm wanting to run all the speakers and sub through that amp instead of my head unit (which would be impossible). Therefore I won't have to buy an after marker head unit? I would really prefer to keep my OEM HU if possible (that's a personal preference). And to go a long with this, I would be able to hook the amp up to the stock HU...?

And finally, that amp is sufficient to power those four speakers and sub, right? This is probably the part that has confused me the most as there isn't a "set" amount of power an amp needs to power a system. I don't want to super over power my items nor under power them.

Sorry for the dumb questions guys! :embarrest:
 

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hey dude, gratz on graduating!

Now the cobalt has 6x9's in the rear and 6.5's in the front. not 5.25's
Second you COULD keep your stock headunit, and install all this stuff but it will be really difficult. Im not even surehow to do it. Their is a Post on here, i think its still here, as to how to hook a sub up to the stock headunit.
I would recommend just getting an aftermarket headunit.
And third that amp you are buying is only a 4 channel amp, that amp is made to power speakers, not a sub. So yes that amp would be able to power your speakers(its a little under the average watts for an interior amp)(id say 300 is average, thats 150) But it wont be able to powr the sub, you will need a seperate 1 channel mono amplifer to power that sub.
Hope that helped. let me know if you have more questions.
 

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also remeber with those subs, they dont come with a box, you will have to build one. And if you want you can get different size speakers and make a template to miunt them out of plywood very easily.
 

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Discussion Starter #4
Thanks for a quick reply, xyankees214x.

Good thing to know that the front's aren't 5-1/4"s. I found some 6-1/2"s that I like as well though, so that wasn't too big of a deal.

I thought a 4-channel would be enough because of what I read at Crutchfield: LCD TV, Car Audio, Home Theater, Speakers, Plasma TV
www.crutchfield.com said:
In the case of a 4-channel amp, use two channels to drive a pair of full-range speakers, and bridge the other 2 channels to power a sub.
So could I get away with just doing a 6-channel amp or would I HAVE to have two separate amps?

Again, thanks man.
 

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if your doing all that work, it's going to be way easier to get a good HU the oem one will work but your going to get much better sound out of a better head unit. with that amp and somebody correct me if i'm wrong. your going to need 2 line out converters one for the fronts and then one for the backs. then another amp for the sub. unless you want to splice power off of the rears (dont recommend this). i would honestly go for a in dash double din dvd player myself but thats me.
 

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A five channel amp will work for the 4 speakers and the sub. theres no way that amp cna power a sub though, it runs at 150 rms. divide that by 2.... your sub will sound like a fart. get a decent amp for the sub, and a seperate for the speakers. also if you get a 5 channel amp, the amp has to work twice as hard, it pushes the speakers and the sub, it will probaly over heat real fast.
 

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Now that i think about it, i have a brand new amp that will power your sub, never used still in box. Im trying to sell it, let me know if you want it. its pioneer though, not kenwood. Ill sell cheap
 

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Discussion Starter #8
Alright, so I've been thinking about this lately. I don't want to pour a tone of money into a system, but I would like something nice. I'm thinking about holding off on the sub. I can always add another amp and the sub at a later time.

Instead, I'm thinking about still going with the four new speakers, a amp, and a new double din head unit. I'm still confused about all the wattage and all that. The speakers I'm looking at are 500 watts each (rear, 6x9s) and 240 watts each (front, 6 1/2s). That alone will need a four channel amp, correct?

My dad said it's best to get the watts coming out of the amp to match the speakers max. He said if you underpower it, it'll sound like trash, but you don't want to over power it. Is this correct?

xyankees214x, what model is that Pioneer sub you have for sale? I might be interested if it's something that could work for me.

Thanks for being patient guys!
 

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Alright, so I've been thinking about this lately. I don't want to pour a tone of money into a system, but I would like something nice. I'm thinking about holding off on the sub. I can always add another amp and the sub at a later time.

Instead, I'm thinking about still going with the four new speakers, a amp, and a new double din head unit. I'm still confused about all the wattage and all that. The speakers I'm looking at are 500 watts each (rear, 6x9s) and 240 watts each (front, 6 1/2s). That alone will need a four channel amp, correct?

My dad said it's best to get the watts coming out of the amp to match the speakers max. He said if you underpower it, it'll sound like trash, but you don't want to over power it. Is this correct?

xyankees214x, what model is that Pioneer sub you have for sale? I might be interested if it's something that could work for me.

Thanks for being patient guys!
LOL ok so here it goes if you get a double din CD first of all dont.......spend money on a better single din CD....Kenwood such as exelon x693 ect...if you have x amount of money spend 75% of your budget on front components and get decent 6x9's because they are just for "fill" yes a 4 Ch amp will do make sure the rms output matches the speaker rms handling. you can be 20-30 watts less or more it wont be a huge issue......You dont want to EVER max out your speakers because if you overpower you will kill em.....so ie your 6x9's are 100 rms and 300 max your gonna wanna feed them as close to 100 rms as possible so they will run cleanly....Ill be installing my system this weekend ill try to do a DIY/How To so ppl can c btw my stuff is Kenwood too!!!! :toung:
 

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like ^^^ said, you want to have the amp output as close as you can to the RMS of the speakers. you could prolly use a 100x4 amp to power all of your speakers and then just turn the gain down. someone tell me if im wrong, but i think that would be fine. and IMO its worth the extra money to go ahead and get component speakers and not amp the rear 6x9s cuz the front 6.5's would put out a good lil bit of bass since they're component and amped. i bought Alpine Type R 6x9's and they sounds pretty delicious
 
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