I have had this component system in my Honda Prelude for about six month. Infinity makes phenomenal speakers for the price and this set is no exception. I have the speakers powered by a Power Acoustic 4 channel amp rated at 100 watts to 4 channels @2 ohms and an Alpine head unit. The tweeters scream and the woofers produce adequate mid bass. I would recommend a better amplifier for these speakers, but they still perform well for receiving power from small and cheap amp. Kudos to Infinity for a great product and to Sonic for a great price and speedy delivery.