Pure Resonance Audio SD5
SuperDispersion Omnidirectional Drop Tile Ceiling Speaker Array with Built-in 8-Ohm/70-Volt Transformer
Providing unrivaled speech reproduction and voice intelligibility, the Pure Resonance Audio SD5 SuperDispersion® Omnidirectional Drop Tile Ceiling Speaker Array offers a smooth even 180-degree coverage pattern with crisp vocal articulation and low distortion. Its cutting edge technology and clear sound make it ideal for classrooms, conference rooms, lecture halls, auditoriums, control rooms, churches, and office sound systems.
This product is excellent and is operating above what they said it would do. Outstanding.
The Next Generation
of Seamless Smooth Audio Coverage
Drop-tile ceiling speaker
Fits perfectly into any standard 2'x2' or 2'x4' ceiling tile grids, providing an amazing 360 degrees of hemispheric sound.
+/- 6dB of Omnidirectional coverage
The omnidirectional 180° coverage pattern provides unparalleled balanced and consistent off-axis audio coverage.
Versatile
Selectable 8 Ohm nominal and 70 Volt inputs are compatible with any commercial or stereo amplifier.

Crystal clear sound
Powerful proprietary tweeter design works in perfect harmony with an array of custom drivers to produce amazing vocal intelligibility and uniform room coverage made possible by a dramatically lower crossover point.
Multi-function
Perfect for classrooms, conference rooms, meeting rooms, training rooms, auditoriums, control rooms, and many more.
Fast and easy to install
Safety carabiner kit includes braided steel cables and infinitely adjustable SpeedClamp™ fasteners for secure and fast easy-install.
The SD5 SuperDispersion Ceiling Speaker Array
Providing unrivaled speech reproduction and voice intelligibility, the Pure Resonance Audio SD5 Super Dispersion® omnidirectional 70V drop tile ceiling speaker array is perfect for classrooms, conference rooms, lecture halls, auditoriums, control rooms, churches, offices, and other commercial sound systems.
The new SD5 is built with a proprietary high-frequency tweeter that creates better audio coverage and response than most loudspeaker systems. The powerful tweeter design works in perfect harmony with an array of custom-engineered drivers to reduce frequency cancellation and provide crystal clear sound. This cutting edge design offers 180 degrees of smooth, crisp audio coverage. The Pure Resonance Audio SD5 SuperDispersion omnidirectional ceiling speaker array is impressively sleek, thin and lightweight, making it quick and easy to install securely with the included 3-point mounting eye bolts and braided steel wire.
SPECIFICATIONS
Power Handling: 120W RMS
Frequency Response: 46Hz - 20kHz
Sensitivity: 90dB @ 2.83V/1M
Impedance: 8 Ohms
70 Volt Transformer Taps: 7.5W, 15W, 30W, 60W @ 70V; 8 Ohm Bypass
Dispersion: 360° by 180°
Drivers: (3) 5.25" drivers; (1) 3" tweeter
Dimensions (H x W x D): 23.75" (603.25 mm) x 23.75" (603.25 mm) x 5" (128.5 mm)
Shipping Dimensions: 27.8" (706 mm) x 27.8" (706 mm) x 8.82" (224 mm)