Any opinions on my Alpine system

[ryan2987]

I figured out what i want to do for my system. First im getting a Kenwood KDC-319 (http://www.crutchfield.com/cgi-bin/S-3bXFNaPfygV/ProdView.asp?s=0&c=3&g=300&I=113KDC319&o=m&a=0)
Then im thinking about 3 1/2 Alpine SPS-0829 (http://www.crutchfield.com/cgi-bin/S-3bXFNaPfygV/ProdView.asp?s=0&c=10&g=51100&I=500SPS0829&o=m&a=1) Next i was thinking of Alpine SPS-1729S 6-3/4" S-Series Speakers (http://www.crutchfield.com/cgi-bin/S-3bXFNaPfygV/ProdView.asp?s=0&c=10&g=52100&I=500SPS1729&o=m&a=1) In the rear i was thinking about Alpine SPS-6939S 6"x9" 3-way Speakers (http://www.crutchfield.com/cgi-bin/S-3bXFNaPfygV/ProdView.asp?s=0&c=10&g=52300&I=500SPS6939&o=m&a=1) And finally for subs i was thinking about 2 Alpine SWS-1241D 12" Dual 4-ohm Voice Coil Subwoofer (http://www.crutchfield.com/cgi-bin/S-3bXFNaPfygV/ProdView.asp?s=0&c=10&g=67700&I=500S1241D&o=m&a=1)
Does anybody have any of these and what do you think about them. Good system to have when turning the music all the way up? Any suggestions about an amp to power all of this. I got one old kenwood amp that pretty powerful but i need something else.

 

[dsmnate]

I wouldn't go with the 6x9's in the rear...put some 6.5's in their place. Round speakers give better sound quality. Actually you could just skip putting anything in the rear because a sound stage is supposed to come from infront of you not behind. Bass in the back is ok because it is uni-directional (you can't tell where it comes from), however if you do put speakers in the rear panels they should be less prominent by fading more to the front speakers or putting less power to them.

As far as amps I still like the raw power of the old Rockford Fostgate amps for subwoofer applications. It really depends how high-end you want to go. For good sound quality Xtant amps is good for your mids and treble but they are rather expensive compared to other amps. Actually your Kenwood amp would probably do fine for you subs or even your other speakers (if you don't need the highest sound quality).