Introduced in the early 1970s the Aria SB4720 was Aria's standard 5-string banjo model. The neck and resonator were finished in red mahogany. It had an adjustable truss rod, rosewood fingerboard, open style vertical machine-heads with white plastic buttons. The shell was aluminum with chrome plated brackets and tailpiece. The diameter of the plastic head was 11 inches and with a 13 inch resonator. This model had a mahogany armrest.