Concrete Audio CA1200.4SLM Class D 4-Channel Amplifier

Concrete Audio CA1200.4SLM – SLM Series

High-output, four-channel Class D digital amplifier designed for custom audio installations requiring strong, flexible power for multiple speakers. Run four channels or bridge into two channels at the manufacturer's specified impedance.

Manufacturer-rated output

• 310 watts × 4 at 2 ohms
• 190 watts × 4 at 4 ohms
• 650 watts × 2 bridged at 4 ohms

Specifications

• Four-channel Class D digital amplifier; 2-ohm stereo stable
• Frequency response: 10 Hz–30 kHz
• Signal-to-noise ratio: greater than 93 dB
• Efficiency at full power: 80% (manufacturer stated)
• Damping factor: greater than 180
• Input impedance: 22 kΩ
• Channel separation: 50 dB
• Total harmonic distortion: less than 0.1%
• Input sensitivity: 0.35–8 V
• Selectable crossover: 20–700 Hz or 200 Hz–7 kHz using ×10 switch
• Low-pass crossover: 20–700 Hz
• Power connection: 4-gauge
• Dimensions (H × W × L): 2.4 × 5.5 × 7 inches

Installation note: Use a 4-ohm load when bridging channels, and size wiring, fusing, and electrical supply for the complete system. Power figures are manufacturer-listed ratings.