car audiophile guys

[DC_Street]

I just got a "new to me" car and want to let the audio system be the first upgrade I do to it. The front and rear doors require 6.5" speakers and the front doors have tweeters in which I will probably disable with the new speakers. The sub/amp are taken care of. I have a 10" Reference MB Quart sub with a 600w Rockford amp. Very good sounding sub, not overpowering.

The amp I want to put in for the door speakers is this:

MB Quart 1000w DSC4125 I know it is the Discus series but that is a hard price to beat for a 4 channel 1000 watt amp.

I'm not looking to go crazy insane on the speakers but here is what I'm thinking about right now...

Infinity: KAPPA 653.7I | 6020CS | Kappa Perfect

Alpine: SPX-17REF

Polk: MM6501

I'm trying to keep it at $500 or less if at all possible but I know getting something like the Kappa Perfects would be worth spending a little bit extra to get. I'm not looking for a perfect audio system, just something that will sound good but definitely not cheap. Thanks for any help