This classroom sound system combines 360° of crystal-clear audio coverage from the SD4 in-ceiling speaker array with the versatility of the MA60BT 60W Bluetooth mixer amplifier. 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-enabled device. You can also connect additional audio sources like an MP3 player, 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 SD4 SuperDispersion® omnidirectional drop tile ceiling speaker array takes speaker performance to a new level by providing 360° of powerful hemispheric audio coverage. A single SD4 speaker provides 30' x 30' of audio coverage depending on the application. Its high-performance sound and operational versatility make it an ideal solution for music, announcements, and paging in classrooms, churches, retail stores, restaurants, schools, universities, government buildings, and military facilities. Each SD4 array can replace multiple conventional ceiling mounted speakers, simplifying and reducing installation time and cost while optimizing performance. The SD4 is extremely quick and easy to install - simply remove one ceiling tile, drop the speaker into any standard 2x2 or 2x4 drop-ceiling grid, attach your wire and safety cables, and you’re done in just minutes.

The Pure Resonance Audio MA60BT mixer amplifier with built-in Bluetooth and 70V/100V transformer technology provides a simple to operate and reliable 6-input solution with a built-in Bluetooth media player for installation in commercial applications. Balanced and unbalanced inputs 70V, 100V, 8 ohm, or 4 ohm outputs, and a compact size and interface are all combined to make this mixer-amp an easy choice for any application.

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: 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: 4, 8, 16, 32, 64W; 8 ohm Bypass

Dispersion: 180 x 360 degrees (hemispherical)

Dimensions: 23.75" (603 mm) x 23.75" (603 mm) x 5.75" (146 mm)

Net Weight: 25 lbs (11.34 kg)                                                                                                                                                              

Rated Power Output: 60W

Speaker Outputs: 70V, 100V and 4 Ohms, 8 Ohms or 16 Ohms

Connectors:
Mic 1 input by balanced XLR with phantom power
Input 2-3 Mic/Line switchable unbalanced 1/4" (6.3 mm) phone jack
Line 1-2 inputs by RCA; Line output by RCA

Frequency Response: 60Hz - 15kHz (±3dB)

Protection: Short-circuit, clip, overload and high temp protection

Dimensions: 3.5" (88 mm) x 11.8" (300 mm) x 10.8" (275 mm)

Weight: 9.04 lbs (4.1 kg)