The Schatten RB-1 passive upright bass pickup includes Schatten's popular RB bass bridge sensor wired to a jack assembly that easily clamps between the strings just above the tailpiece.
The Schatten RB sensor element is designed to fit in the wing slot of a standard bass bridge. Normal placement of the sensor is in the bass- side slot. The sensor has a nominal thickness of 0.25" (6.35mm) and requires a slot opening of approximately 0.225" (5.7mm). The fit of the sensor in the slot is meant to be snug as this is a pressure-sensitive sensor. The sensor will compress slightly as it is pushed into the wing slot. Bridge not included.
The RB-1 includes a high quality jack assembly that simply snaps onto the D and A strings just above the tailpiece. The output jack accepts a standard 1/4" instrument cable (not included).
This passive RB pickup works perfectly well and sounds good when plugged straight into any decent quality bass amp, or you can use a preamp for more sound-shaping capabilities if desired.