Detail 01
Four Monel valves
The added fourth valve extends the trumpet’s range lower by a fourth.

Independent shopping perspective
Schilke’s G1L-4 is a four-valve G trumpet with a .450-inch bore and tuning-bell construction. The fourth valve extends the instrument downward by a fourth, while the bell-tuning layout is described as giving a more open upper register, quicker response, and improved intonation. Its 4-3/8-inch yellow brass bell uses a #5 taper. The broader, dark and full-bodied sound is positioned for solo work as well as brass quintet and orchestral parts. A mouthpiece and case are included.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The added fourth valve extends the trumpet’s range lower by a fourth.
Detail 02
Tuning is done from the bell; this design is described as improving intonation and response.
Detail 03
The bell uses yellow brass with the listed diameter and taper.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
It adds a lower fourth to the trumpet’s range.
Yes. The trumpet includes a case and mouthpiece.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.