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An incredible centerpiece for high-end vintage audio collectors, studio purists, and broadcast historians. Up for sale is an exceptional, fully operational Shure Brothers Model 556S Unidyne Dynamic Microphone, preserved in its original factory packaging.
Unlike the standard consumer 55S, the 556S was Shure’s premium broadcast-grade offering. It features an integrated broadcast shock-mount base designed to isolate handling noise, making it one of the most iconic studio microphones of the mid-20th century.
Key Features & Collector Highlights:
Original Factory Box: Includes the rare, original two-tone Shure Brothers Evanston packaging.
Preservation: Features vibrant, intact deep-blue silk interior lining and the classic blue Evanston, ILL metal badge (Serial No. 3978).
Acoustic Versatility: Built-in rear impedance selector switch allowing seamless toggle between Low (30-50 ohms), Medium (150-250 ohms), and High impedance modes.
Build Quality: Heavy-duty satin chrome housing with the original 3-pin base connection.
Functional & Cosmetic Condition:
Operational Status: Fully tested and 100% functional. Output signal is clean, strong, and clear across all impedance selections (L/M/H).
Cosmetics: In outstanding vintage condition. The satin chrome shell exhibits stunning luster with minimal light patina expected from an authentic vintage studio piece. Grille silk is vibrant and untorn.
Includes: Shure 556S Unidyne Microphone, integrated isolation mount base, and original vintage Shure box.
This piece will be carefully double-boxed and fully insured for safe transit.
