Pure Resonance Audio DA2240 240W 2-Channel Dual Impedance Rack Mount Power Amplifier

The Pure Resonance Audio DA2240 is a compact dual impedance 2 channel power amplifier engineered for commercial installations needing reliable 70V or low impedance performance. Delivering 240 watts per channel in a standard 1U 19 inch chassis, it provides clean power, efficient operation, and straightforward integration in distributed audio systems.

Each channel includes an independent 70V or 4 to 16 ohm selector, allowing mixed impedance operation at the same time for flexible system designs. A high efficiency Class D topology minimizes heat and power loss, while protection, status indicators, and remote fault monitoring support stable day to day operation in schools, offices, retail, hospitality, and house of worship environments.

Designed for longevity and serviceability, the DA2240 uses fan forced cooling and comprehensive safeguards against over temperature, overload, and short circuit conditions. Front panel signal, clip, protection, and power LEDs provide quick visual feedback, and the rear panel Euroblock connectors simplify installation and service.

Key Features

• 240W per Channel: Two channels rated 240 watts each for 70V or 4 ohm operation.
• Mixed Impedance Ready: Independent 70V or 4 to 16 ohm switch per channel for flexible system wiring.
• High Efficiency Class D: Low heat output and reduced power loss for dependable continuous use.
• Comprehensive Protection: Short circuit, overload, and over temperature safeguards.
• Status and Monitoring: Signal, clip, protect, and power LEDs plus remote fault monitoring via Euroblock.

Technical Specifications

• Rated Power Output: 2 x 240W at 70V; 240W at 4 Ohms; 120W at 8 Ohms
• Speaker Outputs: 70V or 4 to 16 Ohms (per channel switchable)
• Input Sensitivity and Impedance: Approximately 385 mV / 20 kOhms balanced input
• Frequency Response: 80 Hz to 16 kHz (+1 dB, -3 dB)
• Signal to Noise Ratio: 95 dB or greater
• Total Harmonic Distortion: 0.1 percent or less at 1 kHz, 1/3 rated power
• Indicators: Signal, clip, protection, and power
• Monitoring: Remote power and fault via Euroblock connection
• Cooling: Fan forced cooling
• Power Consumption: 600W
• Power Supply: 110 to 120V AC, 60 Hz
• Dimensions (H x W x D): 1.73 x 19.00 x 12.40 Inches
• Weight: 10.36 lbs (4.7 kg)