Pure Resonance Audio Classroom Sound System with SD4 Ceiling Tile Speaker and MA60BT Bluetooth Mixer Amplifier

This classroom sound system features the Pure Resonance Audio SD4 SuperDispersion® ceiling tile speaker array paired with the MA60BT 60W Bluetooth mixer amplifier, delivering 360° hemispherical audio coverage for clear, intelligible sound throughout educational spaces. Designed for classrooms, labs, study halls, and music rooms, the SD4 provides wide, even distribution so every student can hear with clarity.

The MA60BT mixer amplifier enhances daily instruction with Bluetooth streaming and flexible connectivity for microphones, projectors, laptops, computers, CD/DVD players, USB drives, and TF cards. This turnkey solution integrates easily with existing classroom technology and supports high-performance audio playback across a variety of teaching formats and media sources.

Key Features

• 360° SuperDispersion Audio: The SD4 delivers a hemispherical 180° x 360° coverage pattern for uniform sound throughout the classroom.
• Perfect for Education: Ideal for classrooms, study halls, labs, music rooms, and multipurpose instructional spaces.
• 60W Bluetooth Mixer Amplifier: MA60BT provides clear amplification with wireless streaming and versatile input options.
• Media Integration: Supports microphones, projectors, laptops, USB drives, TF cards, and CD/DVD players.
• Complete Installation Kit: Includes SD4 speaker array, safety hardware, amplifier, remote, power cord, and 50 feet of speaker wire.

SD4 SuperDispersion® Ceiling Speaker Array

• Power Handling: 160 Watts
• Frequency Response: 35 Hz – 20 kHz
• Sensitivity: 92 dB (half space)
• Impedance: 8 ohms with built-in 70V transformer
• Woofers: (4) 6.5" aluminum drivers
• 70V Transformer Taps: 4W, 8W, 16W, 32W, 64W; 8 ohm bypass
• Dispersion: 180° x 360° (hemispherical)
• Dimensions (W x L x H): 23.75" x 23.75" x 5.75" (603 x 603 x 146 mm)
• Net Weight: 25 lbs (11.34 kg)

MA60BT 60W Bluetooth Mixer Amplifier

• Rated Power Output: 60W
• Speaker Outputs: 70V, 100V, 4Ω, 8Ω, 16Ω
• Connectors: Mic 1 balanced XLR with phantom power; Inputs 2–3 mic/line switchable ¼" jacks; RCA line inputs and output
• Frequency Response: 60Hz – 15kHz (±3 dB)
• Protection: Short-circuit, clip, overload, and high temperature
• Dimensions (H x W x D): 3.5" x 11.8" x 10.8" (88 x 300 x 275 mm)
• Weight: 9.04 lbs (4.1 kg)

What's in the Box

• x1 Pure Resonance Audio SD4 SuperDispersion® drop tile ceiling speaker array
• x1 Safety cable kit with (4) steel safety cables, (4) carabiners, and (4) Fastlinks
• x1 Pure Resonance Audio MA60BT 60W Bluetooth mixer amplifier
• x1 IR remote control
• x1 Power cord
• x1 (50') 18/2 gauge speaker wire