Pure Resonance Audio LA21000 1U Class D Low-Impedance Rack Power Amplifier — 2x700W at 8 ohms / 2x1000W at 4 ohms / 1400W at 16 ohms bridged / 2000W at 8 ohms bridged

The Pure Resonance Audio LA21000 is a low-impedance, Class D digital rack amplifier built for high efficiency and clean output. Its switched mode power supply delivers 95% ultra-high efficiency with low distortion for powerful, reliable performance. Cooling is handled by smart forced fans engineered for low fan noise while providing strong heat dissipation to support long operating sessions. Inputs and outputs are professional-grade: standard XLR inputs, XLR LINK outputs and locking SpeakON NL4 speaker outputs. Two channels give you flexible operation in mono, stereo or bridged configurations, rated at 2x700W at 8 ohms and 2x1000W at 4 ohms in stereo, or 1400W at 16 ohms and 2000W at 8 ohms when bridged. The amplifier is housed in a compact, lightweight yet durable 1U 19-inch industrial-grade chassis for space-saving rack installation. Comprehensive protection features include a soft starter and smart peak clipper plus DC, overload, short circuit and overheat protection, with front-panel power, protection, peak and signal indicators to keep you informed.