With PowerWave technology,PowerLight 2 amplifiers take your sound to a whole new level. Not only does it give you tighter bass and clean transparent highs,PowerWave also cuts waste heat,boosts reliability and gets rid of unwanted noise and hum. PowerWave is a revolutionary switching power supply technology that provides ample current to the audio power circuitry by charging the supply rails 230,000 times a second through an ultra-low impedance circuit. So unlike amplifiers that use conventional supplies,the audio signal is never starved prematurely and remains crisp and clean. • PowerWave™ Switching Technology for improved audio performance • High-efficiency Class H output circuits lower AC current consumption and cooling requirements by over 40% (PowerLight 224,230,& 236) • Increased airflow for improved thermal performance • DataPort for remote computer control or the addition of external DSP modules • Detented gain controls with 1-dB steps for precise calibration • Removable knobs with lock-out security plate to prevent unauthorized tampering • User defeatable clip limiters and selectable low-frequency filter (5,30,or 50 Hz) • 1/4" TRS*,XLR,and 3-pin detachable terminal block input connectors • Neutrik Speakon and "Touch Proof" binding post outputs • "Locking" IEC power cable remains secure on the road