i have found that a 250 watt amp bridged is 500 watts, im only useing 1 sub that is 500 watts. i was looking for a 500 watt amp to power 1 sub, if i were to do this i would have likely blown it up. but now that i have found that 250 watts bridged is 500 that is less to buy a 250 watt amp. this is correct right? it makes sence. correct me if im wrong. and i need to know an amp that is good money for the quality it is. any suggestions? i appreciate any halp.