Conference Room Sound System with an SD5 SuperDispersion Ceiling Speaker Array, RMA240BT 240W Rack Mount Bluetooth Mixer Amplifier and 2 Hanging Microphones

Inside the Design

This professional conference room microphone and speaker system delivers exceptional 360° audio coverage for meetings, presentations, and video conferencing applications. Featuring the Pure Resonance Audio SD5 SuperDispersion® ceiling speaker array, a powerful RMA240BT 240W Bluetooth mixer amplifier, and two Audix M55WO omnidirectional hanging microphones, this system provides outstanding vocal clarity and uniform sound distribution throughout the room. With flexible connectivity options, streamlined operation, and high-quality audio capture, this upgraded solution is ideal for conference rooms, meeting spaces, event rooms, and any environment that demands superior speech intelligibility.

Sound System Features:

• Omnidirectional SD5 speaker array delivers 360° x 180° of consistent, intelligible audio coverage
• Powerful tweeter and multi-driver design provide enhanced clarity and balanced full-range sound
• Simple drop-tile installation fits any standard 2'x2' or 2'x4' ceiling grid
• Bluetooth-enabled RMA240BT amplifier allows wireless streaming from smartphones, tablets, and laptops
• Supports microphones, USB/SD media, computers, video conferencing hardware, and other audio devices
• Audix M55WO hanging microphones capture clear, natural speech with an elegant low-profile design
• Includes emergency priority input for integration with facility safety systems

About the System Components

Pure Resonance Audio SD5 SuperDispersion® Drop Tile Ceiling Speaker Array

The SD5 ceiling speaker array provides 360° x 180° omnidirectional audio coverage using three 5.25" drivers paired with a high-performance 3" tweeter. Its proprietary wave-guided housing and acoustically tuned ported enclosure reduce turbulence and improve clarity, delivering exceptional vocal intelligibility across the room. With selectable 8Ω and 70V operation and a lightweight drop-tile design, the SD5 installs in minutes and integrates seamlessly into commercial sound systems.

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

The RMA240BT mixer amplifier delivers 240 watts of clean, stable power for commercial audio applications. Designed with a high-efficiency 1RU chassis, it includes Bluetooth streaming, USB/TF media playback, FM tuner, 1 emergency input, 2 AUX inputs, and 4 microphone inputs for comprehensive system flexibility. Level, overload, and protection indicators help safeguard the system, while the variable-speed forced-air cooling system ensures reliable long-duration performance. An IR remote control is included for convenient operation.

ART USB Dual Pre Two Channel Preamp with USB

The ART USB Dual Pre provides dual microphone preamplification with USB connectivity, making it ideal for integrating high-quality microphones into computer-based conferencing or recording setups. Its compact, rugged design and clean gain structure ensure excellent audio performance and reliability in professional environments.

Audix M55WO Omnidirectional Hanging Ceiling Microphones

The Audix M55WO microphones deliver outstanding speech capture with a sleek, low-profile hanging design. Their wide omnidirectional pickup pattern ensures clear audio from all directions, making them ideal for meeting rooms and conferencing spaces. Each microphone includes adjustable hanging hardware to achieve optimal placement and coverage.

System & Component Videos

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

• Omnidirectional 360° x 180° coverage for consistent, evenly distributed sound
• Proprietary tweeter design with a lower crossover point enhances vocal clarity
• Wave-guided housing directs sound precisely for improved performance
• Ported, acoustically optimized enclosure with bass-reflex design reduces turbulence
• Low-profile metal back-box with built-in safety suspension points
• Thumbwheel-selectable 8Ω or 70V inputs for broad amplifier compatibility
• Quick drop-in installation—replaces a standard drop ceiling tile in minutes
• Includes safety carabiner kit with braided steel cables and adjustable SpeedClamp™ fasteners

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

• High-efficiency, lightweight 1RU rackmount chassis built for commercial reliability
• Integrated MP3 media player with USB, TF card, Bluetooth streaming, and FM tuner
• Features 1 emergency channel input, 2 AUX inputs, and 4 MIC inputs for flexible system integration
• Bass and treble tone controls provide precise audio customization
• Level, overload, and protection indicators safeguard against overheating, short circuit, and overload issues
• Advanced high-performance amplifier circuitry ensures clean, stable output
• Compatible with 4-16Ω and 70V distributed speaker systems
• Delivers a powerful 240W output ideal for larger commercial audio applications
• Forced-air cooling system automatically adjusts fan speed based on internal temperature
• Includes IR remote control for convenient operation

ART USB Dual Pre Two Channel Preamp with USB

• USB connectivity for seamless integration with desktop and laptop computers
• Low-noise fully balanced XLR and 1/4-inch TRS combo inputs
• Up to 48 dB of clean, transparent gain
• Built-in low-noise phantom power supply for condenser microphones
• Latency-free monitoring with mix and level controls
• Independent gain controls for each channel
• 1/4-inch TRS balanced monitor output and 1/8-inch headphone output
• Compact, stackable all-aluminum chassis for durability and portability
• Flexible 3-way power options: USB, external supply, or 9V battery

Audix M55WO Omnidirectional Hanging Ceiling Microphones with Height Adjustment

• High-output design enables effective distance miking
• Optimized for clear, accurate voice recognition
• Excellent immunity to RF interference for stable performance
• Fingertip-adjustable height and rotation for precise microphone positioning
• Low-noise preamp circuitry delivers clean audio capture
• Designed, assembled, and tested in the USA
• Backed by a 3-year warranty

• (1) Pure Resonance Audio SD5 SuperDispersion® Drop Tile Ceiling Speaker Array
• (1) Safety Cable Kit: (4) Steel Safety Cables, (4) Carabiners and (4) Fastlinks
• (1) Pure Resonance Audio RMA240BT 5-Channel 240W Bluetooth Rack Mount Mixer Amplifier
• (1) IR Remote Control
• (1) Power Cord
• (1) ART USB Dual Pre Two Channel Preamp with USB
• (2) Audix M55WO Omnidirectional Hanging Ceiling Microphones with Height Adjustment
• (1) Hosa CMR-206 Stereo Breakout Audio Cable - 6ft
• (2) Pure Resonance Audio XLR-50 Microphone Cables - 50ft
• (50') West Penn 225 16/2 Non-Plenum Audio Speaker Wire - Gray