Often prefered by lead trumpeters in a big band. If 9E is too small, this model should be chosen. -the manufacturer
Specs:
• Cup Diameter: 16.25mm
• Cup: shallow
• Throat: #25 (3.78mm)
• Backbore: M
• Rim Width: 5.823mm
• Rim Contour: flat
• Rim Top Balance: 43%
• Rim Bite: fairly sharp
• Similar to: Schilke 13A4a