Secret Sound® is a museum-quality parabolic speaker which projects a focused beam of sound onto any exhibit without distracting audio spillover. It was designed by museum professionals to be easily installed, ceiling mounted at any height, and maintenance free, and has been in use by major institutions around the world since 1986.

The speaker housing combines reduced size and elegant design with high-tech materials and performance. Only slightly larger than a baseball, the molded-composite housing provides a strong, clean sound ideally suited for all audio presentations. The composite construction combines strength and durability with improved damping. Secret Sound® is available with a choice of three parabolas: clear, black or white. All units are in stock and can be shipped within 24 hours of our receipt of your order.

Specifications: SS30Mounting hardware included
System Type

3" Full range

Nominal Impedance4 ohm
Impedance (minimum)4.0 ohm
Sensitivity dB @ 2.83V/1M77.0dB
Sensitivity dB @ 1W/1M (2)74.0dB
Frequency Response (± 3 dB)200 Hz - 22 kHz
Frequency Response (±10 dB)200 Hz – 22 kHz
Max. Continuous Power RMS15w
Max. Power SPL @ 1 M92 dB
Tap SelectorWire leads
70.7 Volt Transformer Taps64w / N/A
100 Volt Transformer Taps (dB)64w / N/A
25 Volt Transformer Taps (dB)8w / N/A
Transformer Options25 / 70.7 / 100 Volt Options
Transducer - Full-Range Driver2" High-Directivity
ColorsBlack, White, Clear
InputsWire lead
Height (SM = Height)305 mm / 12.00 in
Diameter (SM = Width)762 mm / 30.00 in
SM Depth (Including Bracket)292.1 mm / 11.5 in
Weight4.5 kg / 9.92 lb
Shipping Weight4.5 kg / 9.92 lb
Accessories OptionalWall-Mount Bracket (AC-WB4), SoundSleeve (AC-SFP20-BK/WH), Rigid Mount Adapter (AC-FP6-RMA)
Owner's Manual - colorDownload Owners Manual
Regulatory - ULN/A
Regulatory - CEN/A
Regulatory - IPN/A
Regulatory - CCCapproved