AtlasIED CLA404 | 4-Channel 400W Multi-Impedance Power Share Amplifier

The AtlasIED CLA404 is a 4-channel, 400W amplifier engineered for maximum flexibility in both constant voltage (25V, 70.7V, 100V) and low impedance (2Ω, 4Ω, 8Ω) speaker systems. This amplifier incorporates AtlasIED’s patent-pending Power Share technology, a groundbreaking feature that allows precise control over how power is distributed across multiple zones—regardless of load impedance.

The CLA404 is built with a switch-mode, global auto-sensing power supply that ensures consistent output even under fluctuating voltage conditions. Each channel can be independently configured via intuitive rear-panel switches to match your desired load and power level, making setup fast and foolproof.

Delivering high voltage and current simultaneously to virtually any load, the CLA404's unique thermal transfer output stage provides reliable, consistent performance. It meets Energy Star standards, drawing less than 1W in standby mode, and typically operates via convection cooling, with silent variable-speed fans activating only when necessary.

The compact 1RU half-rack design makes the CLA404 ideal for commercial installs where space and efficiency matter most. Whether you're powering a high-SPL system or a large-scale distributed audio solution, the CLA404 provides the control, output, and reliability you need—all in one cost-effective package.

AtlasIED CLA404 Key Features

• 4 independent amplifier channels

• Configurable output per channel: 2Ω, 4Ω, 8Ω, 25V, 70.7V, 100V

• Flexible Power Share configurations:

  • 4 x 100W

  • 2 x 175W / 25W

  • 2 x 150W / 50W

  • 2 x 125W / 75W

• Energy-efficient: <1W in standby (Energy Star compliant)

• Rear-panel dip switches for simple configuration

• Remote level control and priority mute (GPI)

• Rear attenuators for volume control

• Convection cooled with fan assist on demand

• Thermal-optimized direct-coupled output stage

• Compact 1RU half-rack chassis

Ideal Applications:

• Restaurants and Hospitality Venues

• Retail Background/Foreground Music

• Education and Classrooms

• House of Worship Audio Systems

• Conference and Board Rooms

• Paging and Announcement Systems

• Multi-zone Commercial AV Installations

AtlasIED CLA404 Specifications