midrange frequencies are directional so i wouldn't do that. If you have a mono amp i would sell it and buy a stereo amp. If you just wanted to get the most out of the amp, you can buy 2 ohm speakers such as image dynamics. Some people don't even use rear speakers, you can just get 6.5's up front, but its a matter of taste whether or not you want rear speakers.

"real men don't ride stick"

jZa
IHS # fo-six-fo-six

"real men don't ride stick"