Capable of delivering 1800 watts per channel into either a 2 or 4 ohm load, Yorkville Sound's new AudioPro AP4K uses proven Class-H technology and advanced protection circuitry to provide unmatched long term reliability in the field. Delivers 1800 watts per channel into either 2 or 4 ohm load(3600 watts bridged into 4 or 8 ohms) Proven Ultra Reliable Class-H Design Easily Handles Reactive Phase Shifted Loads Advanced Protection Schemes Including DC Current, Load, Thermal & Breaker Protection Transparent User-Defeatable Peak Limiter Circuits Soft Turn-On Circuit Protects Speakers and Prevents Nuisance Breaker Tripping During Power Up Concise Front Panel Metering and Status LED's Speakon™ and Binding Post Outputs Balanced XLR and ¼-inch TRS Inputs All-Steel Chassis Construction Made in Canada