I'm deciding which brand to go with. Just the front 6.5 and 6X9 running off stock HU and amp.
My friend are running Infinity with stock amp and I'm very please with it, but it responses to 53Hz to 21KHz only. However, both Pioneer and MB Quart response to 3XHz to 3XKHz.
Infinity needs more power (RMS 90Watts)but a narrower frequency. Pioneer and MB Quart (both RMS 60Watts)need less power but a wider frequency.
I used AVI and McIntosh speakers before, they all need more power but response to only a limited frequency, just like the Infinity. Why?
Anyone has any experience with the above brands?

 

I'm sorry but the
Infinity 6002si
Plus One+ polypropylene woofer
high-roll rubber surround
textile dome tweeter
frequency response 58-21,000 Hz
recommended power range 2-50 watts RMS
peak power handling 150 watts
sensitivity 92 dB
top-mount depth 1-7/8"
1-year warranty

and if you don't like the shallow mount their is the regular size 6002i
Plus One+ polypropylene woofer
high-roll rubber surround
textile dome tweeter
frequency response 53-21,000 Hz
recommended power range 2-60 watts RMS
peak power handling 180 watts
sensitivity 92 dB
top-mount depth 2-1/16"
1-year warranty

both retail for about $100. I have seen them on sale for $79.99. Either is perfect for the doors.

 

Can't really help out on the 6X9s. Because with out an additional amp their is just not enough power to push much else.

 

boss amp are shit
what i like to do on all bose systems i take all speakers out and the amp and put it in the garbage (thats only if you like the factory look for the stereo)
then i take to DEI hi to low adapters and get a nice four channel amp ether pioneer, DEI or rockford fostgate, then i take 8 gauge street wire kit, then i put nice pioneer components in the front 220 watts and pioneer 6x9 400 watts 5 way speakers in the back and guess what sound nice and best of all you get just enough base from 6x9 you just need to know how to ajust everything properly and you set plays sweet

 

Here's what I will do:
1. Buy a 2-channel PPI, JL audio or JBL amp (suggestion would be nice) to run the front component (either MB Quart or Infinity) and leave the rear stock. I can get a better component with my budget (<$700CAD).
2. Buy a 4-channel amp to run the front component and rear 6X9 and forget about the rear door's 6.5. But I'd not get a good component up front.
Just want to improve mid-high frequency response. Low frequency is not much of a concern.