Item #1441417 Model #10 X4B

Schilke X4 Traditional Custom Series Bb Trumpet Silver plated Beryllium Bell


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The largest, free blowing Schilke Bb trumpet available.

The X4 Traditional Custom Series trumpet is the largest, free blowing Schilke Bb trumpet available. The extra-large bore and large throat bell makes this trumpet extremely open, with a large sound and excellent projection.

The X4 trumpet is available in three variations—a fixed yellow brass bell, a fixed beryllium copper bell, and a tunable yellow brass bell—each designed to customize the instrument performance to the player.
  • Key: Bb
  • Bore: .468-inch (11.88mm)
  • Leadpipe: Reverse taper
  • Leadpipe Material: Yellow brass
  • Bell: 5-inch (127mm) large throat with #1 taper in fixed or tunable design
  • Bell Material: Yellow brass or Beryllium copper
  • Valves: Monel
  • 1st Valve Slide Adjustment: Thumb saddle
  • 3rd Valve Slide Adjustment: Fixed ring
  • Case: Custom double hard case
  • Mouthpiece: Schilke Standard Series
  • Finish: Silver plate


  • Available versions: X4, X4B, X4L
  • X4 – Yellow brass fixed bell. A large throat #1 bell with a taper graduated for even and full-bodied tone.
  • X4B – Beryllium copper fixed bell. Large throat #1 bell made from an extremely lightweight copper, this bell offers a more direct, compact projection.
  • X4L – Tunable yellow brass bell. The detachable bell design allows tuning from the bell, to offer a more open, free feeling in the upper register. With less bracing, the response feels quicker by allowing the bell to resonate more to improve projection.
  • Extra-large bore
  • Large throat bell

WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer, and to cause birth defects or other reproductive harm. For more information go to