looking at these components right now but I am MORE than open to suggestions and replacements...

FRONT: Infinity KAPPA PERFECT 6.1 (6-1/2" Component System)

REAR: Infinity KAPPA693.7I (6" x 9" three-way loudspeaker)

CENTER: Infinity KAPPA42.7I (4" two-way loudspeaker)
i could really use some suggestions for this speaker since its very important for the NAVI and i would like it to be crisp and clear

SUB: 1 Infinity KAPPA PERFECT 10DVQ (10" Die-cast subwoofer) or should i get the 12"? should i even get one?

SUB AMP: Infinity REF611A (600 Watt Class D Subwoofer Amplifier)

SPEAKER AMP: Infinity REF5761A (560 Watt 6-Channel Power Amplifier)

HU: I will be keeping the stock unit because everything is intergrated into the NAVI so i was thinking i will get the JBL Cleansweep

Ultimately I just want to get great SQ with a bit of a kick. I dont want anything to rattle. I would probably be happy just replacing the factory sub with a better 8" sub, but I figure ill ask the experts first

With a build like this, would i need a capacitor or any other "small" items, im not thinking of?

Please feel free to make any suggestions for replacement, I only chose these items because I can get them at a great price but VERY open to any ideas

TIA

 

All stock speakers in the doors and rear deck are 6.25 so you will need to do minor cutting for the doors and major cutting in the rear deck if you install the 6x9s. Better to stick with 6.5 all around. The center is a 3.5 so you will need to do some cutting on the grill and dash to make it fit. Do the 10 in the trunk for SQ. Do the 12 if you want thump. Either one should be sealed for best SQ.
The speaker amp is rated at 56 x4 and 107 x2. How are you going to amp the speakers with this? The cleansweep is only for 4 channels. The rockford fosgate 3sixty is a better choice if you want to keep the 5.1 DVD-A. I do not think you need a cap.

There are several very good installs in the forum. Here is a link to mine.

https://acurazine.com/forums/showthread.php?t=133822

 

The kappa perfects have a very, very strong presence in the tweeters. The midbasses are physically very large and heavy drivers so be prepared to deal with possible installation issues... Some advice if you choose to purchase them would be to use the lowest setting for the tweeter on the xovers...While they did sound quite good in the installation I heard them...there are perhaps better options out there for the money-JL XR , Boston pro 60, Diamond 661, MB Quart, Rainbow SLC, Alpine Type X...another option is to just try the Infinity Kappa line, since they are 2 ohm...Many people prefer the sound of the kappas to the Kappa perfects for some reason or another...this way you could even give them a whirl w/out an amp (they are very sensitive @ 94 DB I believe, then if you decide you need more power, you can add it later. One 10 or 12 with a LOC from the sub will do quite well. Also have heard the 12.1 Kappa perfect sub with 700 watts going to it...provided a significant amount of bass, however...there was a bit of a metallic resonance, I dont know if it was the enclosure (No polyfill 1 cu ft sealed), or the sub, so take it for what its worth (Not much I guess!)