Pure Resonance Audio RMA350BT 350W Bluetooth Rack Mixer Amp

If you are building a commercial sound system that needs reliable paging and consistent background music, the Pure Resonance Audio RMA350BT is a strong, rack-ready “all-in-one” solution. It combines a 5-channel mixer with 350W of efficient Class D amplification, plus Bluetooth streaming, so you can keep the system clean without stacking extra boxes in the rack.

The key advantage is system flexibility. The RMA350BT supports 70V speaker systems for longer wire runs and multi-speaker zones, and it also supports 4–16 ohm speaker loads when you are running traditional low-impedance speakers. That makes it a practical fit for offices, schools, restaurants, retail stores, houses of worship, and general public address installs where you want one amp that can adapt to the site.

For daily operation, Bluetooth makes streaming simple, while the included IR remote gives staff an easy way to manage playback without opening the rack. The mixer section supports microphone and line-level inputs with the sensitivity ranges you typically see in commercial paging environments, and there is a dedicated pre-output (audio out) if you need to feed another amplifier, recorder, or processing device.

Commercial installs also demand uptime and protection. This model uses forced fan cooling with variable speed operation and side entry airflow, and it includes protection modes for overheat and short-circuit conditions. That is the kind of design that helps the system stay stable when it is running long hours, every day.

Emergency priority capability is another important piece for public address environments. It is designed so higher priority announcements can take precedence when needed, which is exactly what you want for schools, facilities, and business paging systems.

Benefits
You get one rack mount unit that can run a full commercial audio setup, music plus paging, without extra components. The 70V and 4–16 ohm outputs keep you flexible on speaker selection and wiring style. Bluetooth and the IR remote make daily use easy for staff, while fan cooling and protection features help keep the system reliable.

350W Class D commercial power for strong 70V or 4–16 ohm systems
5-channel mixer for mics, line sources, and paging applications
Bluetooth streaming for quick music playback without extra gear
70V output plus low-impedance 4–16 ohm speaker support
Emergency priority capability for critical announcements
IR remote included for convenient source and playback control
Forced fan cooling with variable speed, side entry airflow design
Built-in protections for overheat and short-circuit events
Tone controls, ±10 dB at 100Hz and ±10 dB at 10kHz
Rack-ready 1U size, 19.05 inch width, slim 1.73 inch height