Audio Conference System with an SD5 SuperDispersion Ceiling Tile Speaker Array, MA120BT 120W Bluetooth Mixer Amplifier and VC100W Volume Control

Inside the Design

This audio conference system is engineered to deliver exceptional vocal clarity and even room coverage, making it ideal for professional meeting environments. The SD5 SuperDispersion® Drop Tile Ceiling Speaker Array provides an impressive 360° dispersion pattern, ensuring crystal-clear speech intelligibility across rooms up to 2,500 square feet. Paired with the Pure Resonance Audio MA120BT 7-channel 120W mixer amplifier, this system supports seamless connectivity for conferencing hardware, microphones, and wireless streaming devices. Designed for conference rooms, meeting spaces, boardrooms, and presentation environments, this system provides reliable audio performance optimized for spoken-word reproduction.

Sound System Features:

• Premium 360° audio coverage with exceptional speech intelligibility
• SD5 omnidirectional speaker replaces multiple ceiling speakers, reducing installation time and cost
• Simple drop-in installation into any standard 2x2 or 2x4 drop tile ceiling grid
• 120W MA120BT mixer amplifier with 7 input channels for microphones, laptops, AV systems, and conferencing equipment
• Bluetooth-enabled mixer amplifier for wireless audio streaming from phones, tablets, and computers
• Clean, white decora-style 70V volume control for precise level adjustment
• Includes full safety cable kit for secure SD5 installation

About the System Components

Pure Resonance Audio SD5 SuperDispersion® Ceiling Speaker Array

The SD5 SuperDispersion® drop tile ceiling speaker array delivers industry-leading speech intelligibility with a smooth, fully omnidirectional 360-degree coverage pattern. Designed to cover an impressive 50' x 50' area, the SD5 replaces multiple standard ceiling speakers, significantly reducing installation time and cost. Its proprietary design ensures superior clarity for speech reproduction, making it a top choice for conference rooms and meeting environments where clear communication is essential. The SD5 installs in minutes—simply remove a ceiling tile and drop it into any standard 2x2 or 2x4 grid.

Pure Resonance Audio MA120BT Mixer Amplifier

The Pure Resonance Audio MA120BT is a versatile 7-channel, 120W commercial mixer amplifier designed for flexible conferencing and presentation audio needs. Supporting 70V, 100V, 4Ω, and 8Ω outputs, the MA120BT integrates seamlessly with a variety of speaker configurations. It features Bluetooth wireless streaming, a built-in MP3 media player with USB, TF, and FM tuner functionality, and multiple mic and line-level inputs for AV sources and conferencing hardware. Engineered with a frequency response of 60 Hz-15 kHz, low <0.5% THD performance, and a high signal-to-noise ratio (Line ≥85 dB, Mic ≥72 dB), it delivers clean, reliable speech reproduction. The passive, fanless cooling design ensures silent operation, while built-in protection circuitry offers safeguards against overheating, overload, short circuits, and clipping. An included IR remote provides convenient audio control.

Pure Resonance Audio VC100W 100W Decora 70V Volume Control

The VC100W white decora-style 70V volume control allows for precise adjustment of audio levels within the conference space. Built for 25V/70V/100V commercial sound systems, this attenuator provides excellent frequency response, low insertion loss, and long-term reliability. The clean white decora wall plate seamlessly blends with standard light switch and outlet plates, offering a professional, finished appearance in any meeting room environment.

System & Component Videos

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

• Omnidirectional coverage pattern delivers consistent 360° x 180° frequency response
• Proprietary tweeter design with a dramatically lower crossover point enhances vocal clarity and intelligibility
• Wave-guided housing directs sound evenly for uniform room coverage
• Ported, acoustically optimized enclosure with bass-reflex design reduces turbulence and enhances performance
• Low-profile metal back-box includes built-in safety suspension points
• Thumbwheel-selectable 8Ω and 70V operation ensures compatibility with commercial amplifiers
• Installs in minutes—simply remove a ceiling tile and drop the SD5 into any standard 2x2 or 2x4 grid
• Includes complete safety carabiner kit with braided steel cables and adjustable SpeedClamp™ fasteners for secure mounting
  
  

Pure Resonance Audio MA120BT 7-Channel 120W Commercial Mixer Amplifier with Bluetooth

• Compact, high-efficiency shelf-mount design engineered for commercial reliability
• 120W power output supporting 70V, 100V, 4Ω, and 8Ω speaker systems
• 7-channel configuration accommodates multiple microphones, conferencing devices, and AV sources
• Built-in Bluetooth for wireless audio streaming from mobile devices, tablets, and computers
• Integrated MP3 media player with USB, TF card, and FM tuner functionality
• Frequency response of 60 Hz-15 kHz with < 0.5% THD ensures clean, natural sound
• High signal-to-noise ratio: Line ≥85 dB, Mic ≥72 dB
• Passive, fanless cooling system ensures silent operation—ideal for conference rooms
• Built-in protection circuitry guards against short-circuits, overload, overheating, and clipping
• No dedicated emergency/paging priority input for simplified operation
• Ideal for smaller to mid-sized systems requiring multiple input options and flexible outputs
• Includes IR remote control for convenient adjustments from anywhere in the room
  
  

Pure Resonance Audio VC100W 100W Decora 70V Commercial Volume Control – White

• Stylish decora-style design with white wall plate and matching knob blends seamlessly with existing room decor
• Compatible with 25V, 70V, and 100V distributed audio systems
• Provides excellent frequency response and low insertion loss for high-quality level adjustment
• Smooth, reliable volume control with no stop between maximum and off positions to prevent switch damage
• Supports adjustment of single or multiple speaker lines for versatile system control
• Includes detachable, phoenix-style euroblock connector supporting up to 14-gauge speaker wire

• (1) Pure Resonance Audio SD5 SuperDispersion® Drop Tile Ceiling Speaker Array
• (1) Safety Cable Kit:
• - (4) Steel Safety Cables
• - (4) Carabiners
• - (4) Fastlinks
• (1) Pure Resonance Audio MA120BT 7-Channel 120W Commercial Bluetooth Mixer Amplifier
• (1) IR Remote Control
• (1) Power Cord
• (1) Pure Resonance Audio VC100W 100W Decora 70V Commercial Volume Control - White 
• (50') Provideon 2C16P 16/2 Plenum Audio Speaker Wire - Black