Yamaha YBB-321 Intermediate Tuba 4/4 Opto Compressors Shaft length: 42"

Shaft length: 42"

Lighting Square Push SW : 3pcs

Four class-A triode amplifier sections (in two tubes) in each channel comprise the entire active circuit

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

Yamaha YBB-321 Intermediate Tuba 4/4 Opto Compressors Shaft length: 42"Yamaha'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