Seminar Room Sound System with 2 SD5 SuperDispersion Ceiling Speaker Arrays and RMA240BT 240W Rack Mount Bluetooth Mixer Amplifier

Inside the Design

This seminar room sound system provides exceptional audio coverage for classrooms, conference rooms, training centers, and seminar rooms. Equipped with two Pure Resonance Audio SD5 SuperDispersion® Drop Tile Ceiling Speaker Arrays and a powerful RMA240BT 5-Channel 240W Bluetooth mixer amplifier, this system delivers full-range audio with clear speech intelligibility and dynamic music reproduction. Wirelessly stream audio from any Bluetooth-enabled device or connect your existing audio/video equipment, such as a laptop, projector, USB drive, SD card, or other devices. The system is ideal for educational and professional venues requiring reliable, high-quality sound for presentations, lectures, and meetings.

Sound System Features:

• 360° x 180° coverage: SD5 speakers deliver smooth, wide audio coverage that fills the room with consistent sound
• Crystal-clear speech: Proprietary 3" tweeter and multiple driver array produce intelligible vocals and high-quality music
• Easy installation: SD5 speakers drop into standard 2'x2' or 2'x4' ceiling grids in minutes
• Bluetooth-enabled: RMA240BT supports wireless streaming from laptops, tablets, and mobile devices
• Multiple inputs: The amplifier supports 4 MIC inputs, 2 AUX inputs, USB and SD card playback, and an emergency channel input
• Remote control: IR remote allows adjustment of volume, playback, and system settings from a distance
• High-powered 240W output: The RMA240BT provides enough power for larger rooms or seminar halls

About the System Components

Pure Resonance Audio SD5 SuperDispersion® Drop Tile Ceiling Speaker Arrays

The SD5 SuperDispersion® speakers feature a 360° x 180° coverage pattern and a proprietary tweeter design that ensures clear speech and full-range audio. Each speaker is equipped with multiple drivers tuned for speech intelligibility and musical clarity, housed in a ported enclosure to reduce turbulence. Their low-profile design fits seamlessly into standard ceiling tile grids, and installation is quick and straightforward, making them perfect for classrooms, conference rooms, and other seminar environments.

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

The RMA240BT mixer amplifier delivers 240W of reliable audio power, supporting 4-16Ω and 70V speaker configurations. It includes Bluetooth for wireless streaming, built-in USB and SD card media playback, and multiple MIC and AUX inputs for flexible connectivity. The amplifier also features an emergency channel input, bass and treble tone controls, and overload/protection indicators. Its 1RU chassis is lightweight yet robust, and the included IR remote provides easy control from anywhere in the room.

System & Component Videos

Pure Resonance Audio SD5 SuperDispersion® 70V Omnidirectional Drop Tile Ceiling Speaker Arrays

• Omnidirectional coverage pattern provides 360° x 180° of consistent frequency response
• Powerful proprietary tweeter design with a lower crossover point improves vocal performance
• Wave-guided housing directs sound where it needs to go
• Ported enclosure is acoustically optimized and tuned with bass-reflex for turbulence reduction
• Low-profile metal back-box comes with built-in safety suspension points
• Thumbwheel selectable 8-ohm nominal and 70-volt inputs are compatible with any commercial or stereo amplifier
• Takes just minutes to install, simply remove one ceiling tile and drop the SD5 into any standard drop-ceiling grid
• Safety carabiner kit includes braided steel cables and infinitely adjustable SpeedClamp™ fasteners for secure and fast easy-install

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

• High-efficiency, lightweight 1RU chassis engineered for commercial reliability
• Built-in MP3 media player with USB, TF, Bluetooth, and FM tuner functionality
• Features 1 emergency channel input, 2 AUX inputs, and 4 MIC inputs for versatile system integration
• Bass and treble tone controls for precise audio customization
• Level, overload, and protection indicators provide short-circuit, overload, and overheating protection
• Advanced high-performance amplifier circuitry ensures clean, stable output
• Compatible with 4-16Ω and 70V speaker systems
• Delivers a powerful 240W rated output suitable for larger distributed audio applications
• Forced-air cooling system adjusts fan speed based on temperature for long-duration operation
• Includes IR remote control for convenient system management

• (2) Pure Resonance Audio SD5 SuperDispersion® Drop Tile Ceiling Speaker Arrays
• (2) Safety Cable Kits: (8) Steel Safety Cables, (8) Carabiners and (8) Fastlinks
• (1) Pure Resonance Audio RMA240BT 5-Channel 240W Bluetooth Rack Mount Mixer Amplifier
• (100') West Penn 225 16/2 Non-Plenum Audio Speaker Wire - Gray