– Gold brass bell – 9 1/2″ diameter results in a warm sound with superior focus
– Thumb and forefinger trigger is durable and identical on high-priced models
– Chrome plated inner slide is durable and quick in response
– One piece nickel silver outer slide guarantees air tightness, smooth action and excellent resonance
– Pressure formed tubing
– Special Yamaha slide lock design
– Hand-lapped valves and tuning slides
– The YBL-620G has two hand-lapped large rotary valves to ensure less resistance and quicker response in the “F” section.