Chevy Cobalt Forum banner

Status
Not open for further replies.
1 - 15 of 15 Posts

·
Registered
Joined
·
498 Posts
Discussion Starter #1
I am going to try and hook a 10" subwoofer up in my LS sedan today with the factory radio and an Alpine mono amp. I bought a down converter from Best Buy and it has inputs for both right and left channels. Do I pull the signal from both back speakers or do I just pull from one? I am trying to follow the how-to on this and it is not real clear to me.

Also, in the how-to it says to pull the back seat. Why would I do that when everything is in the trunk? I know I have to run a blue wire up to the fuse box but everything else can be attached in the trunk, correct?
 

·
Registered
Joined
·
498 Posts
Discussion Starter #2
Now I'm looking at the amp and I didn't even need the down converter from Best Buy because the amp has a connection for line level speaker inputs using the wires directly from the speakers. It has 2 sets of wires for both a right and left channel and then one set of outputs to the subwoofer. So I am headed up to Autozone right now to buy some speaker wire and stuff to get started.
 

·
Registered
Joined
·
498 Posts
Discussion Starter #3
Well I ended up buying a sub hook-up kit at Best Buy because I wasn't sure I knew what all to get. I had bit's and pieces from my son's left over stuff but this way I new I had everything I needed. I did have to make one trip to the hardware store to get some bigger gauge but connectors. Once I got those things went smooth.

I hooked up the blue remote wire to the wiper fuse as suggested. That turns on the sub only when the car is started - not when just the acc is on. I guess that's a good thing so you don't run down the battery. The Alpine amp really kicks it out. I started with the gain at 50% but ended up turning it down because it was way too loud. I might have a few more tweaks to make but so far it's much better than that 4" Bazooka Sub I had in the S-10.
 

·
Registered
Joined
·
317 Posts
if you hook it up with that then the subwoofer might be tempted into playing all the range that the rear speakers is playing, the converter just takes the bass signal and sends it to the amp to be sent to the sub.
 

·
Registered
Joined
·
498 Posts
Discussion Starter #5
Yes but the amp has 3 controls on it - Gain, Base Equalizer and setting the crossover frequency. So I can adjust what the sub woofer gets with that. I did end up using the down converter since I had it. The how-to says to adjust your sound with the down converter but it doesn't say how. It looks like there are two little slots on the opposite side of the RCA inputs. I would have to use a very small screw driver to turn them if that's what they are but I'm not sure what they would do. They are not labeled.
 

·
Registered
Joined
·
498 Posts
Discussion Starter #6
Well after tweaking and playing with my new 10" sub woofer and the 500 watt Alpine amp on the factory radio with my 09 LT Sedan, I am disappointed in the sound. The sub woofer can knock my socks off but I want the whole system to sound good not blow out my windows. I guess I am going to have to go with an aftermarket receiver with a sub preamp output to get a better sound. I will probably have to replace the factory speakers also. For what I want to do, a radio is going to end up costing me 800 to 900 bucks if I install it myself and I buy it through Crutchfield and keep the same setup I have now. I want a radio with RDS, XM, Bluetooth and a USB port and iPod ready. I also need a steering wheel control cable and another control cable to keep OnStar and the door chimes.

The cheaper radios don't have RDS that I really like. So I priced out a DVD radio that had all the features and it would run me about $850 from Crutchfield with all the accessories. I guess I'll start saving.
 

·
Registered
Joined
·
600 Posts
Lol, I just hooked up my subs to the stock deck, splicing wires and everything!
 

·
Registered
Joined
·
124 Posts
me too! i have a 12'' rockford sub and a 600 w amp with a factory head, it sounds so good. im not trying to blow windows out or anything but it hits hard and clean. i have a 2006 ls coupe and my factory speakers sound good. once again not excelent, but pretty damn good. if youre really into car audio go all out, but like dondiego said it gets pricey.
 

·
Registered
Joined
·
67 Posts
I am probably going with 1 12" sub (I dont want to blow out windows I think those people are obnoxious) but more than that I am excited to get 2 tweeters up front. with the sub makes 7 speakers total, all ran through the factory head unit with a line-out converter.
 

·
Registered
Joined
·
2 Posts
Im having Troubles

I have an 08' LT sedan .At the beginning of this year I replaced all of speakers with Infinity Kappa series speakers. I just purchased an Infinity Basslink 2 powered subwoofer a couple weeks ago to complete the 5 speaker set and have hit a brickwall. Im guessing it's power issues? Here's whats going on:

The sub came with rca inputs, speaker level inputs, etc. I started with speaker level and the sub just shut off when it got too loud or I turned it up too high. I recently bought a line-in to RCA converter from BestBuy to try and correct the issue but the same keeps happening. Their converter comes with knobs to adjust the wattage you supply the sub, but I cant seem to get it right. This is a pain. Anyone have any suggestions? Like I said, I think the sub is just being under or over-powered (probably under since I still only have a stock headunit). However, if im wrong? Please correct me!
 

·
Registered
Joined
·
1,442 Posts
its kinda like a bazooka tube, internal amp...if i understand what he means by powered. but it sounds like your ohms are messed up somehow.
 
1 - 15 of 15 Posts
Status
Not open for further replies.
Top