Premium Classroom Speaker System Featuring a Ceiling Tile Speaker & Bluetooth Mixer Amplifier

$ 1,243.99
$ 1,039.99


360° SuperDispersion Ceiling Speaker Array
and 120W Rack Mount Mixer Amplifier

This classroom ceiling speaker system provides 360° of incredible audio coverage with a high-performance 120W mixer amplifier. Wirelessly stream audio with your Bluetooth-enabled device or connect your existing audio and/or video equipment such as a microphone for a teacher, professor, or instructor, projector, USB thumb drive, TF card, CD/DVD player, laptop or computer via the mixer amplifier. This classroom audio sound system is perfect for all educational applications such as classrooms, study halls, labs, music rooms and other applications where high-performance audio quality and the integration of multiple media formats are needed.


Incredible Classroom Audio System for any Educational Environment

360° x 180° Coverage

The SD5 speaker provides 360° of smooth audio and wide coverage that can reach a large area from just one speaker that easily fits into a standard 2'x2' or 2'x4' ceiling tile grid.


Stands alone in the market with best-in-class speech STI clarity and vocal intelligibility according to stringent industry standard lab testing; IEC 60268-5, AES AES2-2012 and EASERA analysis.

Easy to Install

The SD5 takes minutes to install. Just remove one ceiling tile and drop the speaker into any standard 2x2 or 2x4 drop tile ceiling.

Bluetooth Streaming

The RMA120BT supports playback from Bluetooth-enabled devices such as PCs, iPads, tablets or mobile phones, enabling anyone to walk-in and link up with their Bluetooth Wireless Connection.


The RMA120BT is equipped with inputs for wired or wireless microphones, CD/DVD players, projectors, laptops, computers, and other devices.


Remote Control

The included remote control manages volume levels, play/pause, skip and more all from a distance.

Classroom Speaker System With Bluetooth

This classroom sound system combines 360° of crystal-clear audio coverage from the SD5 in-ceiling speaker with the power and versatility of the RMA120BT 120W Bluetooth mixer amplifier in a lightweight, space-saving design. Create a better learning experience by pairing this audio system with your existing audio visual equipment like the audio output from your projector, a wired or wireless microphone, or your Bluetooth device. You can also connect additional audio sources like an MP3 player or play audio from your USB thumb drive or TF card.


This classroom sound system package is ideal for all educational spaces including K-12 classrooms, study halls, labs, music rooms and other applications where high-performance audio quality and the integration of multiple media or AV media formats are needed.

Are your students having a hard time hearing you? No problem! Just add a teacher’s wired or wireless microphone to provide crystal clear speech intelligibility while saving your voice.


The Pure Resonance Audio SD5 SuperDispersion® omnidirectional drop tile ceiling speaker array is the premium solution for speech reproduction and intelligibility that maximizes audio coverage. The SD5 drop ceiling speaker provides an industry-leading 50’ by 50’ of audio coverage in a smooth, even 360-degree coverage pattern and reproduces speech better than any ceiling speaker on the market today. Just one SD5 speaker takes the place of multiple traditional single ceiling speakers, saving money, simplifying and reducing installation time and cost, and optimizing performance.

RMA120BT 120W Rackmount Bluetooth Mixer Amplifier

The simple to operate Pure Resonance Audio RMA120BT 5-channel commercial rack mount mixer amplifier features 120 watts of high-performance power encased in a slim and lightweight space-saving design. This mixer amplifier provides quick and easy Bluetooth connection as well as the ability to accommodate most input sources like microphones, AV equipment, or computer audio.

Due to the possibilities of FM radio interference and the variables involved, it's not recommended to use FM radio as your primary input source.


Power Handling: 63 Watts RMS

Frequency Response: 46Hz - 20kHz

Sensitivity: 90 dB @ 2.83V/1M

Impedance: 8 ohms with built-in 70V transformer

Drivers: (3) 5.25" drivers; (1) 3" tweeter

70V Transformer Taps: 7.5W, 15W, 30W, 60W @ 70V; 8 ohm bypass

Dispersion: 360° by 180°

Dimensions: 23.75" (603 mm) x 23.75" (603 mm) x 5" (128.5 mm)

Net Weight: 21.45 lbs (9.73 kg)                                                                                                                                                              


Rated Power Output: 120W

Speaker Outputs: 4 - 16Ω/70V

Frequency Response: 80Hz~16kHz +/- 3dB

S/N Ratio: MIC1, 2, 3: 66dB; AUX1, 2: 85dB

THD: 0.05%

Cooling Mode: Forced fan with variable speed cooling with side entry airflow

Protection: Overheat/Short-circuit

Remote Control: IR remote control with (replaceable) CR2025 3V lithium battery

Dimensions: 1.73" (44 mm) x 19.05" (484 mm) x 11.61" (295 mm)

Weight: 9.92 lbs (4.5 kg)


(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 RMA120BT 120W Commercial Bluetooth Mixer Amplifier
         (1) IR Remote Control
         (1) Power Cord
(50') 16/2 Gauge Speaker Wire


SD5 Ceiling Speaker:


Cut Sheet

Technical Document

RMA120BT Mixer Amplifier:


Cut Sheet