I bought these for the front of my '90 Lumina and after listening to my old torn paper cones I am impressed! I usually don't turn speakers up until a few hours after listening to let the surround/spider parts(suspension) loosen up. You won't get the most bass by blaring them from the start. People are expecting bass from these like subwoofer quality when its just not gonna happen. These are small speakers. Anyway, I have a Sony head with 23 watts RMS and Audiobahn 6x9s in the rear. I have 4 12" subs(2 MTX 4500s and 2 Audiobahn AW121T) being powered by a Jensen 720 watt and a Sony 1200 watt amp. So as you can see I didn't reallt need these for bass. I have been listening to different speakers over the past few years and I have to say that these Pioneers are some of the best I've ever tried! When I turn the bass down a few clicks, I can turn my Sony head unit up to around 28/34 (volume) and these don't distort!!!