The rickenbacker is two single coil pickup two knobs correlate to each pickup.
One knob is tone, the other vol.
3 way switch, Neck pickup, Both, Bridge pickup
Neck is double truss rod so very durable.
Action is very nice when adjusted with the right tension according to the string gauge you choose.
Two output jacks, one is a normal jack, the second jack is for you to output to another speaker hence stereo.
I own a 4003, very solid bass, its in my collection for good.