They provide bottomless lows and low-mids for your Rickenbacker 4001. 6RC and 6RT have long been the industry standard pro-level upgrades for Ricks. The neck pickup is a split coil design much like a P-Bass in a single pickup.
NOS 1976 Rickenbacker 4001 Bass Potentiometers Pots
Rickenbacker 4001/4003 Harness w/Vintage Tone - ROS w/SoZo Tone Caps
Rickenbacker 4001/3 Wiring harness - Stereo/Mono Outputs
RICKENBACKER 4001 1979 BASS
Rickenbacker 4001 4003 Bass Pickup, bridge position
Rickenbacker 4001 –1980 - Fireglo –Made in USA