If i am going to have up front KAPPA63.5I that are 4 ohms 75 RMS and 225 Peakand in the back KAPPA63.5I that are the same spec as the above what amps do you suggest i use?

 

any suggestions...i was thinking of a 300/4 but not really sure what brand to get?

 

A 300/4 would work very good. There are alot of really good four channel amps out there. How much you want to spend will be a big factor as well. You can spend $50 or $1,000. But, you pretty much get what you pay for.

 

i know you get what you pay for and thats the problem im having...im not setting up a competition system, nothing custom...just something for me to enjoy. I'm spending 250 total on all four door speakers. The amps is saw were like 60 for a Plye amp and 300 for a JL amp. I know JL is a quality brand. I dont want to spend extra money on an amp better then my setup, but i dont want to buy something to cheap and not take adavange of the speakers im installing? am i makin' sense?

 

I would take a look at some other amps. The JBL p80.4 is a nice little amp. Rockford, Kicker and MTX also make really good amps that are less than the JL. While the JL would provide really good sound, you can get away with a less expensive amp.

 

one more question if the speakers are rated at 75 RMS and 225 peak....how much power should i send to them? Do i have to send it 75w or could i send more?

 

You could send more as long as you do not get carried away and it is good clean power. You could get away with 200 x 4 as long as you did not drive around with it maxed out all the time. But, I would look at 75-150 x 4. You really will not be able to tell a difference unless you compare 75 x 4 to 150 x 4. Anything in between and you really can not tell.

 

Thanks AcuraX2 for all your help!

but i still got some questions:

so from what you said above....i wounldn't be making a mistake by running a Rockford 150x4 amp to the speakers.

 

You should be fine as long at you do not get carried away. The amp is only going to put out 150 x 4 at peak moments. If you do not drive around with the volume cranked to max, pushing the speakers to their limit, you should be fine. If all you want is good clean sound at a resonably loud level, you will be fine. What kind of music are you going to be playing and what volume do you normally listen?

 

well i listen to alot of hiphop, reggae, techno, dance....
and for how loud i listen to the music, on the stock system the volume is almost always at 50-75%.

 

I really do not think you would have any problems with 150 x 4. More power in reserve is always better than not enough power and the speakers being strained.

 

so 150x4 is good and 200x4 might be pushing it.

 

There really is not much difference in 150 x 4 and 200 x 4. Maybe 1 db louder. 300 x 4 would be a different story. To really see a difference, you need double the power. Remember though, that even double the power is only 3 db increase. I just would not spend the money on 200 x 4 if I had a good 150 x 4 in mind.

 

thanks for your help...now to find a 150x4, 4 ohm amp.

 

i decided on a MTX Audio Thunder1004, what do you think. Also anyone know where i can get a good deal on this, other than ebay?

 

here email this guy mik3y00ebay@hotmail.com ... he has the best prices i have seen yet.. and he is great to deal with.. i have bouth alot of stuff from him and never had one problem.....

 

thanks shawhite i have been talkin to him for about 2 weeks now
your right he does have great prices...i know im def getting my door speakers from him.

 

He is a great seller. I bought a set of Boston Pro 6.5's from him, (at Shawhite's advice), and it was the best price anywhere.

 

yeah he's got great prices, also he helped me out with picking door speakers.

 

can i power my amp to 14.4VDC

the spec sheet for the MTX amp says
@14.4VDC 124x4

but
@12.5 90x4

is it simple to supply the amp with 14.4 VDC

 

With the car off the voltage is 12.5. With it running, it bumps to 14.4.

 

Thanks!