B4L S1 - Classic Resonance LT & Prana Resonance LT
 
Size Comparison: Conventional 1-1/2 or 2 rim size with E cup depth
 
For many years the B4L S1 (along with the slightly deeper version called B4LD S1) has been the go-to lead mouthpiece size for players who prefer a B4 (1-1/2C equivalent) rim size or larger. With its improved 'Slap' cup contour, the B4L S1 replaced the original B4L in the mid 2000s. This combination of fairly large rim size with a shallow lead cup makes for a wide but bright lead trumpet sound.
 
Weight:
The B4L S1 is made in the lightweight Resonance LT body.
 
Plating & Finish:
Classic Resonance mouthpieces have a shiny, buffed 24k gold finish
Prana Resonance mouthpieces have a brushed 24k gold finish