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SoundTube - SS30 - Focus Point Speaker (Single) is available to buy in increments of 1

SoundTube - SS30 - Focus Point Speaker (Single)

SoundTube - SS30 - Focus Point Speaker (Single)

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.

The Secret Sound installation is similar to that of a ceiling-mounted electrical map. The black steel coupling has ½” inside threads which can be attached to standard rigid electrical conduit with ½” outside threads. This conduit is generally mounted directly to the ceiling using a standard electrical junction box.

Once you have mounted your rigid conduit from the ceiling, bring the speaker wired from the sound source through the conduit so approximately two inches of wire are protruding from the threaded bottom end. Before connecting the speaker, position it on a steady ladder or scaffold near the end of the ceiling mounted conduit. Now connect the wire ends from the coupling to the ends of your wire coming from the sound source. Once the wires are connected, “pre-rotate” the speaker 6 or 8 times counter-clockwise. This will prevent the speaker wire connection from becoming too twisted when threaded onto the coupling.

Thread the coupling onto the end of the conduit and hand tightened firmly. The speaker is now ready to operate. The speaker can be mounted at any height off the floor with minimal affect on the diameter or quality of the bean of focused sound. The parabolic reflection can be painted without affecting the speaker performance, although it is recommended that the underside be painted with a gloss finish to insure optimum sound reflection.


  • Optional Accessories
    • 4-Watt Amp
    • 10-Watt Amp
    • Smart App Volume Control
    • Activator Buttons
    • Microwave Sensor
    • AC-JB20-XFMR 20-Watt Transformer (Power Supply)
  • Color Options: Black, White, Clear


Nominal Impedance
4 ohm

Impedance (min)
4.0 ohm

Sensitivity dB @ 2.83V/1M

Sensitivity dB @ 1W/1M (2)

Frequency Response (± 3 dB)
200 Hz - 22 kHz

Frequency Response (±10 dB)
200 Hz – 22 kHz

Max. Program Power

Max. Continuous Power RMS

Max. Power SPL @ 1 M

Directivity Factor (Q) (Averaged 100Hz - 10kHz, @ 2kHz)
2" High-Directivity


Coverage Angle (-6 dB @ 2 kHz)

4.6m (15') hardwire lead

Height (SM = Height)
305 mm / 12.0 in

Diameter (SM = Width)
762 mm / 30.0 in

4.5 kg / 9.9 lb

Shipping Weight
4.5 kg / 9.9 lb

1 per box

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