Classroom Sound System with 2 SD4 Ceiling Speaker Arrays, TeachLogic IMA-240 Receiver Amplifier and Sapphire Wireless Microphone

Inside the Design

This classroom sound system is designed to provide clear voice reinforcement and multimedia audio for instructional environments. Featuring two Pure Resonance Audio SD4 SuperDispersion® Drop Tile Ceiling Speaker Arrays, the system ensures even coverage and consistent sound throughout the room. Paired with the TeachLogic Forum IMA-240 receiver amplifier and the IRT-60N Sapphire wireless handsfree microphone, this setup offers effortless control and handsfree operation, ideal for teachers, presenters, and trainers.

Sound System Features:

• High-quality voice reinforcement with uniform coverage for classrooms
• Handsfree operation for teachers and presenters
• Infrared wireless microphone system ensures secure, interference-free audio
• Compact ceiling speakers designed for clear sound in tiled ceilings
• Flexible amplification and volume control via receiver amplifier
• Simple integration with existing classroom audio infrastructure

About the System Components

Pure Resonance Audio SD4 SuperDispersion® Drop Tile Ceiling Speaker Arrays

The Pure Resonance Audio SD4 speaker arrays feature four high-performance 6.5" aluminum-woofer drivers arranged to provide broad, uniform coverage in tiled ceilings. Designed for fast transient response, they deliver clear, dynamic sound that reproduces both speech and multimedia content accurately. Their compact, drop-tile design makes them ideal for classrooms, lecture halls, or any educational environment requiring distributed audio with minimal visual impact.

TeachLogic Forum IMA-240 Receiver Amplifier

The TeachLogic Forum IMA-240 is a versatile receiver amplifier engineered for classroom sound reinforcement. With multiple input options and integrated signal processing, it allows precise control over volume, EQ, and source selection. This amplifier is compatible with infrared wireless microphones, ensuring the instructor's voice is consistently clear and intelligible across the classroom. Its compact design simplifies installation in standard AV racks or cabinetry.

TeachLogic IRT-60N Sapphire Wireless Handsfree Microphone

The IRT-60N Sapphire handsfree microphone provides teachers and presenters the freedom to move naturally while maintaining clear, intelligible audio. Worn comfortably on the head, it operates in the infrared spectrum to deliver secure, interference-free transmission to the Forum IMA-240 amplifier. Its lightweight design, adjustable boom, and built-in breath filter make it ideal for extended use in active classroom settings, supporting both lecture and interactive instruction.

System & Component Videos

Pure Resonance Audio SD4 SuperDispersion® Drop Tile Ceiling Speaker Arrays

• SuperDispersion® 360° x 180° coverage for uniform audio distribution
• Engineered for voice reinforcement, paging, and multimedia playback
• Infinite-baffle design fits standard 2x2 drop ceiling tile openings
• High power output for clear sound in classrooms and training spaces
• Four 6.5" high-compliance aluminum woofers with ported bass response and dome tweeters for detailed audio
• Fire-retardant ABS housing may be painted to match room décor
• 8-ohm nominal impedance with built-in 70V taps, easily adjustable
• Acoustically sealed metal backbox for optimal performance
• Includes safety cable kit for secure installation

TeachLogic Forum IMA-240 Receiver Amplifier

• Integrated receiver amplifier for infrared wireless microphone systems
• Multiple input options, including auxiliary line input for multimedia sources
• Balanced and unbalanced outputs compatible with classroom audio infrastructure
• Simple volume, EQ, and source control for easy operation
• Compact design fits standard AV racks or wall-mounted installations
• Reliable amplification for even coverage across the classroom

TeachLogic IRT-60N Sapphire Wireless Handsfree Microphone

• Lightweight hands-free design worn on the head for freedom of movement
• Infrared wireless operation for interference-free, secure audio
• Adjustable boom for optimal mic placement and clear voice capture
• Built-in breath filter for clean vocal reproduction
• Three-level microphone gain switch (low, medium, high) for flexible volume control
• Auxiliary 3.5mm input allows integration of external audio sources
• Channel selectable (A/B) for multi-system classrooms
• Rechargeable battery for reliable all-day classroom use
• Discrete and comfortable to wear during lectures and presentations

• (2) Pure Resonance Audio SD4 SuperDispersion® Drop Tile Ceiling Speaker Arrays
• (2) Safety Cable Kits: (8) Steel Safety Cables, (8) Carabiners, and (8) Fastlinks
• (1) TeachLogic Forum IMA-240 Receiver Amplifier
• (1) TeachLogic IRT-60N Sapphire Wireless Handsfree Microphone
• (1) TeachLogic BRC-15 Wall Charger
• (1) TeachLogic ICS-55 Infrared Dome Sensor
• (1) CBI BLA-6 TRS to Prep Interconnect Cable - 6ft
• (50') West Penn 225 16/2 Non-Plenum Audio Speaker Wire - Gray