AUDAC CAP412 audio amplifier 4.0 channels 480W Class D Black

The AUDAC CAP412 is a professional 4.0-channel audio amplifier delivering up to 480 W peak power per channel through Class D amplification. Designed for installed multi-zone audio distribution, the unit provides flexible output options for 100 V, 70 V and low-impedance 4 ohm applications. Compactly built into a double rack space 19" steel housing, the CAP412 offers balanced XLR inputs for secure signal transmission and link-through to additional amplifiers, plus front and rear controls suited to straightforward installation and operation.

Advantages

The CAP412 combines Class D efficiency with multi-tap outputs to support a variety of speaker configurations and zones while keeping thermal and energy consumption low. Built-in protection features guard against DC faults, short circuits, overheating and overloads, improving operational reliability in permanent installations. Balanced XLR connectivity and a gain control potentiometer simplify signal routing and level matching, and the unit's 19" double rack design fits standard professional racks for tidy, secure mounting.

Suitable for

• Multi-zone background music distribution in commercial spaces
• Fixed installations in conference rooms, retail and hospitality
• PA systems where multiple independent channels are required
• Low-impedance and 100 V/70 V line speaker networks

Key specifications

• Amplification type: Class D
• Channels: 4.0 independent output channels
• Power: 120 W per channel (nominal) with peak capability up to 480 W per channel
• Input connections: Balanced XLR connectors with link-through capability
• Output options: 100 V, 70 V multi-tap and 4 Ω low-impedance taps
• Protection: DC fault protection, short-circuit protection, overload protection, thermal protection and limiting
• Controls: Rear gain control potentiometer and 400 Hz high-pass filter switch
• Power supply: AC input 100–240 V
• Form factor: 2U (double rack space) 19" steel chassis
• Color: Black
• Weight: 14.8 kg

How to use

Connect input sources to the balanced XLR inputs and use the link-through outputs to cascade signal to additional amplifiers when needed. Select the appropriate output taps for each speaker line depending on whether you use 100 V, 70 V or 4 Ω speakers. Adjust the rear gain potentiometer to set the required channel levels and enable the 400 Hz high-pass filter switch when low-frequency roll-off is required for distributed speaker networks. Ensure the amplifier is mounted in a standard 19" rack with adequate ventilation and connected to a compatible AC supply (100–240 V).

Recommendations

To preserve performance and longevity, avoid obstructing ventilation openings, use correct tap settings for each speaker line to prevent overload, and verify wiring polarity and impedance before powering on. For installations with multiple amplifiers, use balanced cabling and proper grounding to reduce noise and maintain signal integrity.