I recently bought some tower speakers for my boat, and they need 500rms to run at full power. There are 4 10's, 2 in each pod sharing a fiberglass housing, and they are wired together for a 4 ohm load. I really only need a 2 channel that puts out 500w at 4 ohm, or a 4 channel that I can bridge. It needs to be a full range amp. I am currently using an Alpine PDX4.150 bridged to 300 per housing, but they are not being pushed as much. I have been out of the game for a while, so I am unsure as to the better quality amps. Any help would be greatly appreciated. Attached is a link to the speakers. I was looking not to spend more than $550. Thanks http://www.nvs1.net/deviant.html