Power amplifier Audac PMQ480 4-channel, 480W total output, 4 Ω load support

The Audac PMQ480 is a 4-channel power amplifier designed for fixed installations, public address systems and background music applications. Delivering a total of 480 W and supporting 4 Ω speaker loads, this amplifier provides multi-channel power distribution suitable for AV racks and multi-zone audio setups. Engineered for integration into professional audio systems, the unit offers straightforward connectivity and consistent output across four channels.

Advantages

The amplifier supplies balanced power across four independent channels, enabling flexible speaker configurations and multi-zone control without requiring multiple discrete amplifiers. Its compatibility with 4 Ω loads ensures efficient drive of typical professional loudspeakers, while a compact form factor allows installation in standard AV racks. The design focuses on reliable operation and predictable performance in continuous-use environments.

Suitable for

• Installation in AV racks for conference rooms and auditoria
• Background music systems in retail, hospitality and corporate spaces
• Public address and paging systems requiring multiple amplified outputs
• Multi-zone audio setups where independent channel distribution is needed

Key specifications

• Channels: 4 independent output channels
• Total output power: 480 W (aggregate across channels)
• Speaker load support: designed to operate with 4 Ω speaker loads
• Form factor: rack-compatible unit suitable for integration into AV furniture
• Application focus: fixed installations, public address, background music

How to use

Connect each speaker to an individual output channel following the amplifier’s channel labeling and respecting polarity to maintain phase coherence. Ensure connected speakers match the 4 Ω load support or are configured so that the amplifier sees the appropriate impedance per channel. Install the amplifier into an AV rack or mounting location with adequate ventilation and connect input sources using balanced or unbalanced audio lines as required by the system. Power the unit and set gain controls to achieve the desired level while avoiding clipping; adjust levels per zone or channel to balance sound across the venue.

Usage recommendations

For consistent performance, place the amplifier in a ventilated rack space and allow clearance for heat dissipation. Verify speaker impedance and cable runs before powering on, and use proper gain staging from source to amplifier to prevent distortion. Regularly inspect connections and maintain proper cooling to extend operational life.