This King 3B Silversonic Trombone, serial #433535, was produced between 1965 and 1970 during the early Eastlake, OH manufacturing period. A standout jazz classic, this model features a solid sterling silver bell with a gold-plated inner flare. The bell was stripped and hand-polished in-house to remove worn lacquer and reveal its rich natural patina. The neckpipe was relacquered, the tuning slide retains original lacquer, and the handslide remains in original condition.
The instrument received complete professional service, including chemical cleaning, full mechanical inspection, play testing, and handslide setup. There were no dents or structural concerns at the time of sale. The slide was smooth and responsive, with only minor cosmetic wear to the outer lacquer.
The 3B Silversonic is revered for its warmth, clarity, and tonal presence—particularly in jazz and commercial settings. Sterling silver bells like this absorb energy and return a beautifully resonant tone with enhanced projection. Many players liken the sound to the signature warmth of J.J. Johnson, making it a top choice for lead, section, and solo playing alike.
Ideal for use in big band, combo, or studio environments, this horn offered a professional-level playing experience for advanced musicians and collectors alike. It came with the original coffin-style King case in solid condition.
What makes the King 3B Silversonic unique among vintage jazz trombones?
The Silversonic version of the 3B stands out for its sterling silver bell, which enhances tonal warmth and projection. The gold-plated inner flare adds visual appeal and contributes to the bell’s resonance.
Is the King 3B still used by modern jazz players?
Absolutely. Vintage and modern versions of the 3B remain a favorite among jazz musicians worldwide. The classic .508 bore and 8" bell deliver an agile, colorful tone ideal for lead and section work.
Did J.J. Johnson play a King 3B Silversonic?
While J.J. Johnson did not consistently play the Silversonic model, many players associate his iconic sound with the King 3B design. The Silversonic captures the same tonal qualities that defined his smooth and lyrical style.
This King 3B Silversonic has been sold and is now archived as a reference for musicians and collectors.
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