Up for sale is a classic Rockford Fosgate Model P300-1 Monoblock Subwoofer/Low Pass/High Pass/ All Pass Centre Channel car power amplifier produced in 2010. Part of a private car audio collection this superb hand made in the USA amplifier like all Rockford Fosgate amps is way underrated in power output. This amp is conservatively rated at 300 watts RMS output into two ohms and 150 watts RMS into four ohms. These sleek, clean looking solid and easy to instal amplifiers have been carefully tested on this You Tube Demo here: https://www.youtube.com/watch?v=eafVc1YZK9M. These tests show that the actual output of this amplifier at its very best can produce over 700watts of power in a 1ohm burst load. This amplifier has been tested and works as designed. Are you searching for incredible products? Please view the 4000+ items we have for sale here on Craigs List.