The Behringer A800 is a Class D power amplifier designed to drive passive speakers with high efficiency and reliability. Here are its key features and specifications: Key Features: Power Output: 2 x 400 watts at 4 ohms 800 watts bridged-mono at 8 ohms Cooling: Advanced convection-cooling technology for noise-free, stable operation Impedance Compensation: SmartSense technology ensures a linear frequency response regardless of the speaker load Class D Technology: Efficient with minimal thermal buildup, keeping the unit cool even during heavy use Efficient Power Supply: Switch-mode power supply provides low noise, superior transient response, and reduced power consumption Protection: Independent DC, LF, and thermal overload protection for both the amplifier and speakers Input Compatibility: Combo XLR, 1/4" TRS, and RCA connectors for various source devices Reliable Outputs: Binding posts and speakON connectors for secure speaker connections Metering & Monitoring: LED metering and clip indicators for easy gain staging and monitoring Specifications: Number of Channels: 2 Power Class: Class D Power Output: 2 x 400W @ 4 ohms 800W bridged @ 8 ohms Inputs: 2 x XLR 2 x 1/4" TRS 1 x Dual RCA Stereo Outputs: 2 x Binding Posts 2 x speakON Cooling System: Convection-cooling Rackmountable: Yes, 2U size Power Source: Standard IEC AC cable Dimensions: Height: 3.7" Width: 19" Depth: 8.7" Weight: 7.1 lbs The A800 provides a powerful, energy-efficient solution for driving passive speakers, making it ideal for live sound, studio, and other professional audio applications.