The traditional Rickenbacker bass style, characterized by dot inlays and absence of binding, was highly valued by Paul McCartney and Chris Squire when they acquired their first 4001S models in 1964. This design, with its classic appearance and smooth, rounded edges — often considered more comfortable than the 4003 — is beloved by players.

The modern 4003S variant includes an enhanced dual truss rod system. Renowned for its solid bass tones, sustained resonance, and sharp treble punch, it's understandable why there's been a consistent demand for its return. Originally exclusive to the British distributor Rose Morris in the 1960s, this model features the iconic maple body curves and a traditional fingerboard, with its distinctive dot inlays and lack of binding setting it apart from the standard 4003.