AtlasIED CLA404 400‑Watt Four Channel Multi‑Impedance Power Share Amplifier

The AtlasIED CLA404 is a high-performance 400‑Watt four-channel amplifier featuring advanced Power Share technology for adjustable power distribution across different zones regardless of speaker impedance. Ideal for commercial installations, it supports constant-voltage systems (25V, 70.7V, 100V) as well as low-impedance loads (2Ω, 4Ω, 8Ω), offering ultimate flexibility for sound reinforcement and distributed audio applications.

Equipped with a switch-mode, global auto-sensing power supply, the CLA404 ensures stable output under varying power conditions while maintaining efficiency. In standby, it consumes under 1W and operates convection-cooled, with whisper-quiet fan assist when required. Housed in a compact 1RU half-rack chassis, it includes rear panel switches for easy load and power configuration per channel, along with remote level control, priority mute GPI, rear attenuators, and multiple GPI ports for enhanced integration.

Rugged, efficient, and versatile, the CLA404 is an ideal solution for delivering reliable audio performance in multi-zone systems, paging setups, and high-SPL applications, all with professional-grade control and connectivity.

Key Features

• Four independent amplifier channels with load configurations for 2Ω, 4Ω, 8Ω, 25V, 70.7V, and 100V
• Power Share options: 4 x 100W, 2 x 200W, 1 x 350W + 50W, 1 x 300W + 100W
• Energy-efficient with <1W standby power consumption
• Convection cooling with fan assist as needed
• Priority mute GPI and remote level control
• Compact 1RU half-rack design

Technical Specifications

• System Type: 4 Channel Power Amplifier
• Topology: Class D
• Output Power: 400W
• Number of Inputs: 4
• GPI Ports: 5, Euro Block 3.5 mm
• Output Terminals: 4, Removable Euro Block, 5.08 mm pitch, locking
• THD (1 kHz, 1 dB below rated power): ≤0.15%
• Signal‑to‑Noise Ratio (8 Ω): >93 dBA A‑weighted
• Cooling: Convection idle, variable‑speed fan with audio‑signal sense
• Dimensions (HxWxD): 1.75‑Inch x 8.75‑Inch x 13.5‑Inch (44 mm x 222 mm x 343 mm)
• Weight: 7.5 lbs (3.40 kg)
• Warranty Period: 36 months from date of purchase