Yamaha YBB-321 Intermediate Tuba 4/4 Opto Compressors The connectors are high quality

The connectors are high quality Neutrik Speakon and Switchcraft 1/4" types

The Low & High Harmony independently produces two harmony notes: 3rd and 5th

even at extremely high sound pressure levels (SPL)

Shaft length: 42"

Often imitated

Yamaha YBB-321 Intermediate Tuba 4/4 Opto Compressors The connectors are high qualityYamaha's YBB 321 is an incredible choice for those who desire a full sized, four valve BBb tuba, yet must consider their budget. It features a commanding bottom end, and is very easy to play, with impeccable intonation. Key of BBb Size 4 4 Bore 0. 728" Bell Diameter 17 1 2" upright bell Leadpipe Material Gold Brass Body Bell Material: Yellow Brass Finish Clear epoxy lacquer; Silver (YBB 321S) Mouthpiece 67 Pistons Valves Pistons Valves Case BBC 32