Office Ceiling Sound System with 8 C5 4" 70 Volt Ceiling Speakers and RMA240BT 240W Rack Mount Bluetooth Mixer Amplifier

Inside the Design

This commercial 70V background music system is designed to deliver clear, evenly distributed audio for offices, business environments, and professional spaces. Equipped with eight Pure Resonance Audio C5 micro 4" ceiling speakers and a powerful RMA240BT 240W rack mount mixer amplifier, this system provides full-range sound with minimal visual impact. The C5 speakers blend seamlessly into ceiling tiles and include matching tile bridges for stable, secure installation. With 240 watts of power, Bluetooth streaming, multiple input options, and integrated safety features, the RMA240BT offers reliable performance for background music, paging, and everyday business audio needs.

Sound System Features:

• Complete 70V commercial audio solution for offices, conference areas, retail spaces, and general business environments
• Compact C5 4" micro ceiling speakers provide wide sound dispersion with a clean, low-profile appearance
• Includes C5-TB tile bridges for secure mounting and balanced support in standard drop ceiling tiles
• RMA240BT mixer amplifier offers Bluetooth streaming, FM radio, USB/TF playback, and multiple mic/line inputs
• 240W 5-channel amplifier delivers strong, dependable power for distributed speaker systems
• Forced air-cooling fan ensures stable long-term operation during continuous commercial use
• Emergency priority input automatically overrides audio for safety announcements

About the System Components

Pure Resonance Audio C5 Micro Ceiling Speakers

The Pure Resonance Audio C5 is a compact 4" 70V ceiling speaker designed for high-quality background music and paging in professional spaces. Despite its small footprint, the C5 provides wide dispersion and impressive full-range audio clarity, making it ideal for offices, conference rooms, and retail environments. These micro ceiling speakers blend unobtrusively into standard ceiling tiles and are paired with C5-TB tile bridges for secure and stable installation in drop ceilings.

Pure Resonance Audio RMA240BT Mixer Amplifier

The Pure Resonance Audio RMA240BT is a high-efficiency 5-channel, 240-watt rack mount mixer amplifier built for demanding commercial applications. It features Bluetooth streaming, an integrated MP3 media player with USB and TF inputs, an FM tuner, multiple mic and line-level inputs, and an emergency override channel. Its forced air-cooling fan provides reliable heat management for continuous operation, making it ideal for business environments. The amplifier includes an IR remote control and power cord for convenient use and system management.

Due to the possibilities of FM radio interference and the variables involved, it's not recommended to use FM radio as your primary input source.

System & Component Videos

Pure Resonance Audio C5 4" Micro Ceiling Speaker

• Compact recessed design with an ultra-thin flat bezel that blends seamlessly into ceiling environments
• Supports optional mounting accessories, including the C5-DM drywall mount and C5-PK pendant kit, for flexible installation options
• Full-range 4" paper cone driver with butyl rubber surround delivers robust sound with a 120° x 120° coverage angle and 91dB sensitivity
• Wide frequency response ranging from 90Hz to 20kHz for clear background and foreground music
• Features a multi-tap transformer with selectable 70V/100V settings and an 8Ω bypass via a 4-pin Euroblock connector
• Ideal for business offices, retail stores, restaurants, hotels, waiting rooms, sound masking, and general commercial environments
• Quick and simple installation using the threaded screw-on Easy-Mounting ring; optional tile bridge available for added ceiling support

Pure Resonance Audio RMA240BT 5-Channel 240W Commercial Rack Mount Mixer Amplifier with Bluetooth

• High-efficiency, lightweight 1RU chassis designed for reliability in commercial installations
• Built-in MP3 media player with USB, TF, Bluetooth, and FM tuner capabilities
• Equipped with 1 emergency channel input, 2 AUX inputs, and 4 MIC inputs for flexible audio integration
• Bass and treble tone controls for precise sound shaping
• Level, overload, and protection indicators guard against short circuits, overheating, and excessive loads
• Advanced high-performance amplifier circuitry provides clean, stable audio output
• Supports 4-16Ω and 70V speaker systems for versatile configuration
• Delivers a strong 240W output suitable for medium-to-large commercial audio zones
• Intelligent forced-air cooling system automatically adjusts fan speed based on temperature for long-duration operation
• Includes IR remote control for convenient and efficient system operation

• (8) Pure Resonance Audio C5 Micro 4" 70 Volt Ceiling Mount Speakers
• (8) Pure Resonance Audio C5-TB Tile Bridge for C5 4" Ceiling Speakers
• (1) Pure Resonance Audio RMA240BT 5-Channel 240W Bluetooth Rack Mount Mixer Amplifier
• (1) IR Remote Control
• (1) Power Cord
• (250') 18/2 Gauge Speaker Wire