QSC PL380 
PowerLight 3 Series is comprised of our “Ultimate Analog” power house amplifier, designed for the most demanding concert and live-sound reinforcement applications. The PL380 features the ground breaking PowerLight™ power supply technology, dramatically reducing weight, eliminating AC mains hum and improving audio quality. Comprehensive remote control and monitoring can also be achieved via the Q-SYS networked platform.
Class D topology provides 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 connectors
Comprehensive internal protection protects amplifiers and loudspeakers against over-current, over-temperature and clipping – without compromising program signal
Features
PowerLight switch-mode power supply for highest efficiency and improved audio performance
Flow-through air path and solid aluminum heat sinks for maximum cooling
DataPort supports remote network control and monitoring via Q-SYS
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 per channel (3 Hz, 30 Hz, or 50 Hz)
Three selectable gain structures (26 dB, 32 dB, or 1.2 V)
Front and rear panel LEDs indicate status of switch settings at a glance
Parallel XLR/M and XLR/F connectors for simple loop-through connectivity
Neutrik Speakon® and "Touch-Proof" binding post outputs
Neutrik Powercon® power cable remains secure on the road
3 year warranty, plus optional 3 year extended service contract
Linear Class H output circuit offer double the typical efficiency of Class B, reducing AC current consumption and cooling requirements