Conn 48H Vintage 1958 Small Bore Trombone
This Conn 48H from 1958 is shown here as part of The Brass Exchange Archive of Sold Instruments, preserved as a historical reference for players, collectors, and researchers studying classic small-bore American jazz trombones.
The Conn 48H occupies a distinct position in Conn’s mid-century lineup. Sharing the familiar .500" bore dimensions found across Conn’s small-bore models, it reflects an era when subtle construction choices—rather than radical design changes—were used to offer players meaningful tonal and perceptual alternatives within the same platform.
✦ Model Overview & Design Context
The Conn 48H shares core dimensional DNA with the better-known Conn 6H:
Bore: .500"
Bell Diameter: 8"
Intended Use: Jazz, commercial, lead, and section playing
Where the 48H diverges is not in size or response, but in bell construction. Rather than a lacquered yellow-brass bell, the 48H used a nickel-plated bell, a choice that placed it alongside other Conn experiments in material and finish during the 1950s.
Early examples are believed to feature nickel plating over higher-copper brass, while later production appears to transition to nickel plating over yellow brass. Although the exact timeline is not fully documented, these variations reflect Conn’s ongoing refinement of tone, durability, and player experience rather than an attempt to redefine the small-bore category.
✦ Instrument Condition & Service | Historical Snapshot
At the time it passed through The Brass Exchange, this 1958 Conn 48H presented in very good overall condition for its age.
Bell section remained structurally sound with strong cosmetic integrity
Handslide was straight and mechanically sound
Moderate chrome wear was present on the inner slide tubes near the stocking area, consistent with long-term professional use
As with all instruments handled by The Brass Exchange, it received a complete professional shop service, including chemical cleaning, slide alignment, and full mechanical inspection. The instrument was housed in its original Conn case.
These condition details are preserved here as documented at the time of sale for historical accuracy.
✦ Player Perspective: Bell Construction, Plating, and Perceived Tone
Although the Conn 48H is often described simply as having a “nickel” bell, it is important to distinguish between solid nickel silver construction and nickel plating over brass. The 48H falls into the latter category, with early examples believed to use higher-copper brass beneath the plating and later examples transitioning to yellow brass. The exact transition point remains uncertain.
From a player’s perspective, these construction differences tend to influence overtone balance rather than response speed or efficiency. Nickel-plated bells—particularly those over higher copper content—often return fewer high-frequency overtones to the player’s ear compared to lacquered yellow brass. This can create a sound that feels more contained or blended, not because the instrument responds differently, but because of how the harmonic content is perceived.
When compared directly with a Conn 6H of similar vintage and bore size, differences are typically subtle and perceptual rather than mechanical. Both models articulate and respond in fundamentally similar ways. Preference often comes down to how the player hears and feels the sound rather than any objective advantage. Neither approach is inherently better—only different.
✦ Photography From Our Early Archive
📸 Older Photography Note – SEO & Historical Context
The photographs shown on this page originate from the early years of The Brass Exchange. During that period, our photography workflow, lighting, and background systems were still evolving.
These images are preserved intentionally as part of our historical record, documenting both the instrument itself and the progression of our archival and documentation standards over time. While The Brass Exchange now employs a refined fine-art photography process designed specifically for brass instruments, earlier imagery remains valuable for authenticity, transparency, and long-term reference.
🔧 Availability & Archive Status
This Conn 48H (1958) has been sold and is no longer available for purchase.
It is displayed here strictly as a historical reference within our Archive of Sold Instruments.
📌 Interested in similar trombones?
👉 Browse our current trombone listings 🔎
✍️ Or contact us for guidance if you’re researching, selling, or evaluating a comparable instrument.
