So I bought my car with the current setup and now I want to add a 10 inch sub. Currently I have a set of kenwood dualmag components powered by an alpine mrv-t420, which sound amazing for what I can expect from them. This is running off of the stock head unit btw and I plan to keep it stock. So what do I need to do next to power a 10 inch sub? I want to stay away from running 2 amps because I don't feel like rewiring with thicker power wire. But I can't find a decently priced amp that will run two of the components at at least 100watt each and the sub at 300watts bridged? Help me out guys.

EDIT: I found out the sub im planning on using is only 150 watts rms at 4ohms, so basically I an amp that will run 100wx2 to the components and 150 to the sub.

 

You're probably going to need a good 4 channel amp to do that. 1 channel per component and the other 2 for the sub. What gauge of wire are you using? Check out this chart. Wire Size Chart Based on your power and cable length you can get a recommended gauge size so you know whether you'll need to rewire or not. Another question people will ask is, what is your budget?

 

K ill check a little later. But for my budget, as far as an amp, I'd say a couple hundred. I can be flexibly to myself if I find something that I want though

 

The wiring is 8gauge

 

I was looking at this one, but it only supplies the components with 75 watts x2

http://www.crutchfield.com/S-QJlXeY5...ml#details-tab

Then I saw this, but is 75 watt or 60 watt enough to run my components?

http://www.amazon.com/Rockford-Fosga...+amplifier+500

 

What would YOU guys do?

 

What kind of speakers do you have?

 

Don't mean to be rude, but did you read my first post?

 

Also, I only have one set of rca's running to my current amp. I heard that some amps will pass the signal to the other 2 inputs if only one set of rca's are plugged in. Anyone know if this is true?

 

Ya I did but I totally forgot lol. Are these the ones? Dual Mag It says the recommended power range is 2-45 watt rms so you would want an amp that can power each speaker with that rms. So you could get a 4 channel amp and use 1 channel per component and bridge the last 2 for your subwoofer. As for having one rca cable, I believe the amplifiers are able to filter certain frequencies to play in certain speakers. I did the same thing in my last car. Don't quote me though.