Four-channel power amplifier Audac CEP408 4x100W RMS 70V

Audac CEP408 is a four-channel power amplifier that delivers 4×100W RMS at 70V, intended for distributed audio and public-address systems. The unit provides four independent amplified outputs so multiple speakers or zones can be powered simultaneously from a single chassis. The amplifier is designed to integrate into commercial and institutional installations requiring reliable background music distribution, paging, or sound reinforcement with consistent power per channel.

Advantages

The amplifier offers four independently driven channels, each providing nominal 100W RMS at 70V for even coverage across zones. Its rack-compatible format and straightforward connections simplify installation in professional AV racks and distribution closets. Built with thermal and overload protection, the unit maintains operational stability in continuous-use environments. The 70V operation reduces wiring complexity for multi-speaker layouts and supports long cable runs with minimal power loss.

Suitable for

• Multi-zone background music systems in retail and hospitality
• Paging and public-address in schools, offices, and hospitals
• Small to medium commercial sound reinforcement
• Distributed speaker installations in corridors, lobbies, and meeting rooms

Key specifications

• Output power: 4 channels × 100W RMS at 70V
• Topology: four independent amplified outputs for zone distribution
• Intended use: distributed audio and public-address installations
• Protection: thermal and overload protection for reliable continuous operation
• Mounting: rack-compatible form factor suitable for professional AV racks

How to use

Install the amplifier in a suitable rack or mounting location and connect each output channel to the corresponding 70V speaker lines for the desired zones. Use appropriate gauge speaker cable for the distance and load; ensure channel configuration matches speaker tap settings to avoid overload. Connect audio sources to the amplifier inputs, set input levels to match source operating levels, and power up while monitoring for normal operation. Observe cooling clearance around the unit and allow ventilation to maintain thermal protection effectiveness.

Usage recommendations

For optimal performance, match speaker line impedance and tap settings to the amplifier’s per-channel power rating, use quality 70V transformers or transformerless speakers as specified by the installation design, and verify gain staging to prevent clipping. Periodically check ventilation and connections in commercial installations to ensure long-term reliability.