The P500A is high efficiency power amplifiers serves a specific role to work in conjunction with a mixer amplifier or preamplifier to significantly boost the power in any given commercial installation and accommodate large numbers of commercial speakers. This amplifier utilizes Class D amplifier technology which means it is extremely lightweight and runs very cool despite the high amount of power being sent to the speakers. With 500W of power, it can save money in large installations by reducing the overall number of amplifiers used.