KNA VV-Wi Detachable Piezo Pickup for Violin and Viola

Extend the clamps by holding the pickup and the bottom feet of the clamp while loosening the center barrels. After choosing the desired position, tighten the barrels with the provided metal key.

Some bridge slot openings will need to be widened slightly. We recommend 400 grit sandpaper, folding the paper appropriately to make it sturdy. If possible, use a thin piece of plastic or metal plate between the sandpaper. This will help while sanding and keep the sanded surface flat, which is important. Before you start sanding, use appropriately cut cardboard placed around the bridge to protect the varnish of the instrument. Widen the slot slowly, stopping frequently to try attaching the pickup sensor. This will avoid making the slot too wide.

Install the sensor into the horizontal eye slot of the bridge on the 1st (E) string side, so that the cable is on the outer side of the bridge. Hold the bridge with your free hand so it does not move while installing the sensor. The sensor should fit tightly but install without force. It should not move while playing or even shaking the viola, but not too tight where the sensor or bridge can be damaged or broken.

With the volume off, plug the receiver into your favorite high-impedance acoustic amplifier. The output of the receiver is 1/8″ (3.5mm). The included adapter can connect most amplifiers and audio equipment, which have a 1/4″ (6.35mm) input. The pickup also supports a wired connection to equipment via an instrument cable with a 1/8″ (3.5mm) male jack that plug into the transmitter’s input. Hold the transmitter with one hand while attaching and detaching the cable.

Turn on the transmitter, long press “+” for 5 seconds, and when the blue light flashes quickly, that indicates that the pairing status has been entered. Turn on the receiver, and the blue light will flash as it’s pairing. When the blue light is solid, you’re ready to enjoy your new pickup.