Audac APM104 4‑Zone Digital Paging Microphone

Audac APM104 4‑Zone Digital Paging Microphone

The APM104 is a professional-grade, digitally controlled paging microphone designed for 4-zone audio distribution. Ideal for corporate offices, public buildings, sports venues and emergency services, it offers precision, flexibility and robust performance for demanding environments.

Overview

Featuring a high-quality back‑electret condenser with cardioid polar pattern and a flexible 350 mm gooseneck, the APM104 ensures clear, directional speech. Its built‑in compressor/limiter maintains consistent vocal levels, while three-colour illuminated buttons and status LEDs offer intuitive control and feedback. It supports both analogue and digital audio output and integrates seamlessly with AUDAC's ARU relay systems and matrix platforms.

Design & Build Quality

The unit is housed in robust steel with a metallic grey finish, ensuring durability in high-use locations. The weighted base provides stability during operation, and the gooseneck's adjustable structure offers pinpoint microphone positioning for optimal clarity.

Key Technologies & Features

• Programmable zone/function buttons: Four illuminated buttons, each colour-coded and configurable for zones, relay activation or stored voice file playback.
• Integrated compressor/limiter: Maintains a steady output level, preventing distortion from sudden loud speech.
• Internal memory: Stores up to 10 minutes of audio (max 30 files), triggerable via button or scheduled events.
• Dual audio modes: Configurable for analogue (CAT5e) or digital (CAT6) transmission.
• Bus & power over RJ45: Single-cable connection carries audio, RS‑485 and 24 V DC, simplifying installations up to 300 m with optional PSU.
• Customisable chimes: Supports 'ding‑dong' tones via internal memory.
• Status LEDs: Provide feedback during speech, bus‑occupied status and errors.

Specifications

Performance & User Experience

In real-world use, the APM104 delivers clear speech even in large areas. The compressor/limiter ensures announcements maintain intelligibility without distortion. RGB‑illuminated buttons make zone selection intuitive in dim lighting. Whether used for scheduled chimes or live paging, the unit is responsive and reliable.

Q&A

• Can this connect to digital matrix systems? Yes, it supports both analogue and digital output over RJ45 (CAT6 for digital).
• How far can the cable run? Up to 113 m on internal power; extendable to 300 m with optional 24 V PSU.
• Can I store custom chimes or announcements? Yes - up to 10 minutes of chimes/voice files across 30 tracks.
• Is it suitable for emergency evacuation? Yes - programmable priority buttons, chimes and zone control make it ideal for emergency use.
• What maintenance is required? Minimal - just a quick microphone windscreen clean and routine cable checks. Steel body ensures long-term durability.

Product Recommendation

For those looking to procure this unit, consider the Audac APM104 Paging Microphone, available from UK-based suppliers. It offers the full feature set described above with five-year manufacturer support.