The 1U Rack‑mount Mixer Amplifier Series is designed for background music, paging, and public address system installations in commercial and public environments. Built with a durable aluminium alloy front panel in a standard 19" 1U rack size, the unit combines reliability with professional aesthetics.

Offering multiple power ratings (60W / 120W / 240W / 360W / 500W / 660W), the amplifier supports both 70/100V line outputs and 8–16Ω loads, making it adaptable to a wide range of installations. Inside, TOSHIBA amplifier transistors and 100% pure copper toroidal transformers ensure stable, high‑quality performance, while the Class‑D amplifier circuit delivers high efficiency with low heat generation.

The system integrates a USB player, Bluetooth, FM tuner, TF card slot, EMC input, and alarm functions, providing versatile media playback and communication options. A key safety feature is the evacuation alarm voice playback, stored on a TF card and activated via a rear trigger connector, ensuring emergency messages override all other inputs when required.

Connectivity includes three microphone inputs (MIC1, MIC2, MIC3), with phantom power support (48V ON/OFF switch) for MIC2 and MIC3, plus two line inputs and a balanced line output for system expansion. Individual volume controls for MIC and AUX inputs, a master volume controller, and bass/treble tone controls allow precise audio management.

The amplifier features a muting priority function, where Alarm overrides MIC1, MIC1 overrides EMC, and EMC overrides other sources (BT/FM/USB, MIC2, MIC3, AUX1, AUX2), with adjustable attenuation from 0–30dB. Additional functions include bell and alarm tones, Bluetooth/USB auto playback after power‑on, and a dot‑matrix LCD for clear system status.

For reliability, the unit provides complete protection against short circuit, overload, high temperature, and peak current, with LED indicators for Power, Signal, and Protection. Power supply options include AC100–240V and DC24V (except the 660W model), with optional infrared remote control operation.

Compact, efficient, and versatile, the 1U Rack‑mount Mixer Amplifier Series is widely used in shops, supermarkets, schools, churches, stations, hotels, and other public venues, delivering dependable audio performance and critical evacuation capability.