The PCSD series PCS3400D is a amplifier become the choice of many sound companies world wide. The PCSD series easily handles 2-ohm loads and its rugged construction is ideal touring. All PCSD series amplifers are heavy duty Class H amplifiers and provide superior power output, incredible efficiency, and produce chest shattering lows. The PCSD series features a front panel digital LED display that allows you to monitor audio output, internal temperature and fan speed. Other features include a rear panel three position mode switch for stereo, bridged or parallel modes and a rear panel three position input sensitivity switch.