i.Sotto 1

isotto mounting bracket for wall and ceiling mounting

3.5″ Installation Loudspeaker

A term from music theory was the inspiration for this small loudspeaker. The term “sotto voce” comes from the Italian and means something like half-loud, with a muffled voice. The world-famous composer Johannes Brahms always used sotto voce in his compositions in order to achieve a subdued expression, subtle restraint but not a mechanical reduction in tone strength.

We believe that this term fits well with the smallest of our installation speakers. Restrained decent but with self-confident tone strength. The i.Sotto 1 is an ultra-compact full range speaker for high quality applications and fixed installations. In addition to the 60 watt program power handling and elegant design, this speaker offers an excellent reproduction of speech and music. The i.Sotto 1 is therefore ideal for use under balconies, conference rooms and for small presentations.


• Shops and offices
• Bars , museums, restaurants
• permanent installation


• Standard color: black, similar to RAL 9005 (Warnex)
• Standard color: white, similar to RAL 9010 (Warnex)
• Optional color: according to RAL or NCS
• Connections: clamp connections

Call us for more informations

More speakers from our Installationseries

Get an overview of other AD-Systems loudspeaker. If you have any questions, please do not hesitate to contact us. Current prices and the product catalog are available on request.

Product overview of our installation speakers

Presealed wood case with scratch resistant Warnex coating
Basic layout
Protective Grille
Powder coated metal grill with honeycomb structure
1x 3,5" Fullrange and 1" voice coil
Frequency Response
92 Hz - 19 kHz
Power handling
100W Peak
60W Program

Nominal Impedance
8 Ω
Dispersion pattern
Horizontal coverage (-6 dB) = 90°
Vertical coverage (-6 dB) = 90°
Suspensions points
2 x M8 thread
clamp connections
Dimensions (w x h x d)
102 x 102 x 130 mm
Net Weight
750 grams (without bracket)

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