PowerLight 3 Series are ''Ultimate Analog'' power house amplifiers, designed for the most demanding concert and live-sound reinforcement applications.Class D (PL380) and Class H (PL340 & PL325) topologies provide efficient performance at extreme power loads. Three-position Input Sensitivity switch ensures gain-matching with existing amp racks and power systems. User defeatable clip limiters and selectable low-frequency filters (30 Hz, 50 Hz, Bypass). DataPort connection supports external amplifier control and monitoring via Q-SYS. XLR and Block Input connectors and Binding post or Neutrik speakON Output connector. Comprehensive internal protection protects amplifiers and loudspeakers against over current, over-temperature and clipping - without compromising program signal. Frequency response: 20 Hz - 20 kHz. Dimensions: 89 x 483 x 397 mm. Weight: 10 kg.