Large Surface Transducer with Wires - 4 Ohm 5 Watt

Turn any surface, wall, or table into a speaker with this Large Surface Transducer. Unlike conventional speakers with moving cones, this transducer uses a metal rod wrapped with a voice coil that expands and contracts to create sound when current is applied, turning the attached surface into a resonant speaker.

This 45mm diameter transducer has a 4Ω impedance and is rated for 5 watts. It's heavier and larger than the medium surface transducer, allowing it to lay top-down on a table or be placed at the end of a plastic cup to direct sound. It works excellently with various Adafruit audio amplifiers such as the TS2012 breakout, MAX98306, or a 20W amplifier (use low gain to avoid overdriving).

• Diameter: 45mm (1.8")
• Height: 27mm (1")
• Wire Length: 120mm (4.7")
• Impedance: 4Ω
• Power Rating: 5W
• Weight: 174g
• Wires pre-soldered for easy connection

Note: As of July 10, 2018, the transducer no longer has a rubber pad on the transducing element and the arm length has increased.

Perfect for creative audio projects where you want to convert ordinary surfaces into speakers.

Download Datasheet (PDF)