Vandoren Boehm Alto Eb- clarinet mouthpiece, Classic B 40, tip opening 138 (1/100 mm), Medium long facing length. Designed to use soft reeds without sacrificing the sound quality of a stronger reed (centered and compact).
The B40 mouthpiece works very well with the Buffet Basset Horn and allows you to use slightly softer reeds for more flexibility of tone and an open sound. Intonation and articulation are also excellent. The service and price from Thomann made this a must buy!