Rim width 7.0 mm, narrow, round inner and outer rim
Bore: 8.1 mm
Large double bass tuba mouthpiece for orchestral use
Slightly wider than model PT-50
Full, powerful tone
For strong, well-trained players
The upper rim of the L model is narrower, the outer cup is longer, which results in a slightly darker tone, but not as heavy as the + (heavy shell) models.