Lecture Hall Sound System Featuring 4 SD5 SuperDispersion Ceiling Tile Speaker Arrays & RMA240BT 240W Rack Mount Bluetooth Mixer Amplifier
- $ 3,419.99
- $ 2,881.99
LECTURE HALL SOUND SYSTEM
360° SuperDispersion® Ceiling Speaker Arrays & 240W Rack Mount Bluetooth Mixer Amplifier
This lecture hall sound system provides 360° of incredible audio coverage with a high-performance 240 watt mixer amplifier. Wirelessly stream audio with your Bluetooth-enabled device or connect your existing audio and/or video equipment such as a projector, USB thumb drive, TF card, CD/DVD player, laptop or computer via the mixer amplifier. This sound system is perfect for lecture halls, lecture theaters, guest lecture events, presentations, or any other application where powerful, high-quality audio is needed.
POWERFUL SOUND FOR LARGE LECTURE HALLS
A High Power, High Quality Lecture Room Sound System
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.
IMPECCABLE SPEECH REPRODUCTION
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-ENABLED
The RMA240BT 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.
CONNECT YOUR EQUIPMENT
The RMA240BT 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.
LECTURE HALL SPEAKER SYSTEM WITH BLUETOOTH
This lecture hall sound system combines 360° of crystal-clear audio coverage from the SD5 speaker with the power and versatility of the RMA240BT mixer amplifier. The amplifier also provides quick and easy Bluetooth connectivity and 240W of high-performance power in a lightweight, space-saving design. With the RMAs forced air-cooling fan, this sound system is ready to work overtime in your lecture hall or and teaching and learning spaces.
SD5 SUPERDISPERSION CEILING SPEAKER ARRAY
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.
RMA240BT 240W RACK MOUNT MIXER AMPLIFIER
The Pure Resonance Audio RMA240BT is a 5-channel Bluetooth commercial rack mount mixer amplifier that delivers 240 watts of high-performance Class D power in a slim, lightweight design, occupying just one rack unit. It features a built-in multimedia player that supports Bluetooth streaming from smartphones, tablets, laptops, or Bluetooth-enabled PCs, as well as playback via TF cards, USB thumb drives, and an FM tuner. Pairing is simple—press the Mode button on the unit or remote until "BT" appears on the display, then connect via your device’s settings by selecting "PRA-BT." The amplifier includes a remote control for convenient volume, playback, and track navigation, along with a forced air-cooling fan for reliable operation in demanding applications like hotels. With a 4-16Ω/70V distributed audio speaker output, two AUX inputs, four MIC inputs, and an emergency channel input, the RMA240BT is a versatile and efficient audio solution.
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.
Includes
(4) Pure Resonance Audio SD5 SuperDispersion® Drop Tile Ceiling Speaker Arrays
(4) Safety Cable Kits
(16) Steel Safety Cables
(16) Carabiners
(16) Fastlinks
(1) Pure Resonance Audio RMA240BT 240W Commercial Bluetooth Mixer Amplifier
(1) IR Remote Control
(1) Power Cord
(500') 16/2 Gauge Speaker Wire
Specifications
SD5 CEILING SPEAKER | |
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Power Handling | 63 Watts RMS |
Frequency Response | 46 Hz - 20 kHz |
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) |
RMA240BT MIXER AMPLIFIER | |
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Rated Power Output | 240W |
Speaker Outputs | 4 - 16Ω/70V |
Frequency Response | 80Hz - 16kHz +/- 3 dB |
THD | 0.05% |
Cooling Mode | Forced fan with variable speed cooling with side entry airflow |
Protection Mode | Overheat/Short-circuit |
Power Consumption | 300W |
Remote Control | IR remote control with replaceable CR2025 3V lithium battery |
Dimensions (H x W x D) |
1.73" (44 mm) x 19.05" (484 mm) x 11.61" (295 mm) |
Weight | 11.50 lbs (5.22 kg) |