Good luck getting much "bass" out of a set of full ranges. Especially if you don't plan on amping them. Full range speakers and component sets are primarily for reproducing high and mid range frequencies. Trying to use a set of full range speakers as a substitute for subs is a dead end street. Kenwood makes a low to mid end speaker at best and Infinity focuses more on the higher ranges (meaning not so great mid range response). Maybe look into Polk MOMOs. Whatever you get, you're definetly going to want to amp them for any chance of producing substantial mid bass.