50mm Surface-Exciter Speaker, 4/8-Ohm Options

Build a surface-vibration audio project with a small exciter driver. It transfers vibration to a suitable attached surface rather than working as a complete enclosed Bluetooth speaker.

• ✅ Use a panel as the radiating surface - the exciter drives vibration into a compatible material.
• ✅ Choose an amplifier match - separate impedance options are available.
• ✅ Fit a compact driver - the approximately 50 mm body suits a small project layout.

The Mounting Surface Becomes Part of the Sound

Panel material, size and attachment strongly influence the result. Test the chosen surface and mounting method before building the final arrangement rather than expecting a fixed bass response from the driver alone.

Use an amplifier suited to the selected impedance and rating. This is a passive component without a confirmed wireless receiver, battery or volume control. Panel, amplifier and power supply are excluded.

Technical details

• Size: approximately 50 × 50 × 30 mm.
• Options labelled: 4 ohms/25W or 8 ohms/20W.
• Type: moving-coil vibration exciter.
• Package: one driver.

Match the driver and surface for your audio experiment.