FAQ Sheet

What materials can be used to finish Sonance Invisible Speakers?
The materials must be pliable, elastic materials. Cement types of plasters or stuccos are too rigid and will not yield good
audio quality. Paper backed wood veneer, acrylic and lime based Venetian plasters, thin wall papers and any semi-elastic
wall topping compound will yield satisfactory finish results and good audio quality.
What keeps the surrounding drywall from cracking after extended play?
All Sonance Invisible Series Speakers are constructed on an extremely ridged extruded aluminum frame. This frame
prevents any of the speaker diaphragms movement from extending beyond the edge of the speaker. Additionally, the
moving part of the diaphragm is set back 1” or 25mm from the edge of the speaker. Invisible Speakers have been used
for decades in residential and commercial applications without ever experiencing any problems occurring in the wall
surfaces.
How do I prevent the sound from the rear of the speaker from radiating into adjacent rooms?
Metal acoustic enclosures are available as an accessory for all Sonance Invisible Speakers. The acoustic enclosure
reduced the output from the back of the speaker by approximately 20dB.
Note: the IS4 C 70/100V commercial speaker and the IS4 W woofer come with the metal enclosure already attached.
Dispersion
Do Invisible Speakers offer the same coverage as conventional speakers?
Due to their design Sonance Invisible Speakers have 170 degrees of hemispherical dispersion up to 10kHz, giving them
much broader dispersion than conventional speakers. This means in distributed audio systems fewer Invisible speakers
are needed to provide even coverage to a given area.
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