I was talking to an install guy around my way and he said on a set of components to take a four channel amp and and run two channels to the mid and the other 2 channels to the tweeters and just adjust the channels accordingly. has anyone ever heard of this? I have a 4 channel amp sittin at my house and a 2channel profile ap1200 pushin 2 10's. Im about to add the components and figuring out whats the best set up.

 

thats called bi amping. They do it most often with ultra high end home hi-fi speakers.

A nice set of car audio components can benefet from this set up. more control etc etc

 

Well there are a few things to consider before trying this on your setup.

Option 1 = Full Active Setup - You need an external 2-way crossover. You feed your preamp signal into the crossover, then from the crossover you feed the signal to the 4-channel amp, then from the amp to the mids and tweets. This allows you to fully control the crossover frequencies and levels of your components. This is not recommended unless you are going really high-end and know what you are doing.

Option 2 = Bi-amping - Some higher end components come with crossovers that allow you to Bi-amp your components, my Boston's did. This is where you feed your 4 channel amp the preamp signal from your headunit, then use 2 channels to power your tweets and the other 2 to power your mids. There really isn't an effective way to do this unless the crossovers that came with your components are MADE for bi-amping. Otherwise, you will need to go with option 1.

What componenets are you using?

 

Nothing to crazy just probably polk db6500's. Im not looking to spend $500+ for speakers. The thing is i want to get rid of stock speakers cuz they suck, and use some components. The 4 channel amp i just have lying around from my old system and thought i could use that instead of buying a new one. Im looking to because i have the 300rms x 2 going to the subs, then adding this amp. I was thinking of possibly just using two of th channels but i dont know how that will work with the other two not being used. It just sucks cuz i have 2 amps lying around but one is alpine mono amp using 400Wrms and the 4 channel so im trying to use that one. Any ideas?

 

not sure if the polk xover is bi-ampable, but why can't you use the 4-channel amp but just bridge it to 2-channels?

 

gonna be to much power, the amp is 1000w.. so most likely at 4ohm around 100w per channel so if i bridge them it be a lil high. I cant find the exact spec on the amp, i got it from a friend many years ago when i was young.

 

well, you can always just turn the gains down until you see the proper watts for your components.... http://www.conceptconcept.com/download/measurwatts.pdf

Just trying to save you some loot if i can.

 

haha thanks man i appreciate it. If i cant do it that way could i just run 2 channels by them self or will that mess the amp up?

 

you sure can run just 2 channels of a 4 channel amp.

 

Based on your equipment list, I wouldn't do it. Stick with a channel per side.

 

My cousin just gave me this old mtx thunder250x 2 channel put looking at it it says only 25rms at 4ohms. First is that realistic my head unit i think is 22rms. Should i use this 2 channel or stick with the 4 channel for the components?

 

The rms rating of the headunit is most likely overrated. Go with the amp, it is going to give you true and clean watts.

 

definitely using an amp just debating on using that 2 channel or the 4 channel i have at my house