The JBL C60 (S7R) “Sovereign” home speaker system was available between 1962 and 1967. The “Sovereign” moniker was attributed to the detailed mid-century low-slung cabinet design with solid oak trim work. C60 indicated the driver orientation, and the suffix, in this case (S7R), indicted the exact driver compliment.
LE15A AlNiCo 15″ Paper Pulp Cone Woofer
PR15 15″ Paper Pulp Passive Radiator
LE85 AlNiCo 1.75″ High Frequency Compression Driver
HL91 Acoustic Lens
LX5 2-way adjustable crossover
Stunning examples of the time, cloth-covered grilles, extended overhang, and low body make these the quintessential mid century design.