This King 3BF Silversonic is a standout example of one of the most revered commercial jazz trombones ever built. Featuring a sterling silver 8" bell with gold brass trim, this bell section was produced in the 1980s (serial 666XXX), paired with a .508 bore lightweight nickel silver handslide made around 1970. The result is a horn with both historic character and dynamic performance capabilities.
What makes the Silversonic series special is the bell. Sterling silver bells deliver extraordinary tonal clarity and brightness, with a distinct sonic energy that feels alive under the player’s hands. This model also includes an F-attachment, giving players added range and flexibility for more demanding passages.
Professionals who rely on the 3B Silversonic often describe it as a horn that lights up the room—perfect for lead, jazz combo, funk, R&B, and commercial gigging. Whether you're pushing the limits in a high-volume horn section or playing a soulful solo ballad, this horn responds with punch and color. The handslide is exceptionally straight and has not seen prior damage or repairs. Includes the original case that came with the bell.
☑️ What makes the King 3BF Silversonic such a powerful choice for modern jazz and commercial players?
The sterling silver bell offers more brilliance, tonal presence, and immediate projection than traditional brass. When paired with the compact .508 bore slide and responsive F-attachment, the result is a flexible horn with unmatched energy and cutting power—ideal for players who need to be heard.
This trombone has been archived and is now shown as a reference for players, collectors, and those researching Silversonic models from King’s golden era.
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