Weessex Bb Duplex euphonium EP105P lacquered

The Lacquered Wessex Duplex EP105P euphonium is one of the most unique instruments ever developed by Wessex. Its main feature is the exclusive dual bell system, which allows for an instant change in the instrument's sound character through a fifth piston.

By activating the fifth piston, the airflow is redirected between two completely different bells: a large euphonium bell, with a wide, round, traditional sound, and a smaller bell with a more direct, focused timbre closer to a baritone or trombone.

Dual Sound Personality in One Instrument

The 12” (300 mm) main bell offers the classic sound of a compensated euphonium : warm, deep, and with great harmonic richness. When activating the auxiliary 8½” (216 mm) bell, the instrument takes on a brighter and more defined character, ideal for solo lines, rhythmic passages, or contexts where greater clarity and frontal projection are desired.

Wessex Duplex EP105P euphonium Features

• • Tuning: Bb
• • System: Compensated
• • Pistons: 4 main pistons + 5th diverter piston
• • Euphonium Bell: 12” (300 mm)
• • Auxiliary Bell: 8½” (216 mm)
• • Bore Size: 15 mm (1st–3rd pistons)
• • Fourth Piston: 16.8 mm
• • Leadpipe: Wide bore
• • Weight: 5.5 kg
• • Finish: Lacquered

A Creative and Extremely Versatile Instrument

The Wessex Duplex is designed for musicians seeking maximum sound versatility in one instrument. It is particularly interesting for music bands, stage ensembles, modern repertoire, and situations where rapid timbre changes are needed without switching instruments.

Thanks to its compensated system, it maintains solid and consistent tuning throughout the range, while the fifth piston radically expands the expressive possibilities for the performer.

Buy the Wessex Duplex EP105P Euphonium at A Un Tono

At A Un Tono, we offer the Wessex Duplex EP105P reviewed and adjusted by specialists. A truly unique euphonium in the market, ideal for musicians looking for differentiation, creativity, and real functionality in one instrument.