Features
Monel pistons
Monel pistons are resistant to corrosion and are an ideal choice for professional baritone pistons which must retain precise fit and smooth action over many years.
Features
Monel pistons
Monel pistons are resistant to corrosion and are an ideal choice for professional baritone pistons which must retain precise fit and smooth action over many years.
Hand-lapped pistons
Hand-lapping is a time-consuming finishing process which results in superior valve fit for noiseless, responsive action and easy tone changes.
Hand-lapped slides
Hand-lapping achieves the perfect balance between airtightness and smooth action.
Available feature
The YBB-621 tuba is available with a silver-plated finish
Accessories
| Included Accessories | |
|---|---|
| Model | Material/Description |
| YAC BB67C4 | Tuba mouthpiece; all-around model for beginners and experts on Bb tuba |
| YAC BBC-69 | Plastic tuba case; fits YBB-621/YCB-621 |
| YAC RVO | Superior valve oil |
| YAC 1061 | Silver Polish |
| YAC 1096P | Treated silver polishing cloth; medium |
| YAC 1097P | Treated silver polishing cloth; large | Optional Accessories |
| YAC BB64 | Tuba mouthpiece; designed for the beginning student, it is easy to play and very flexible |
| YAC BB65 | Tuba mouthpiece; supports dark, full sound for orchestral playing |
| YAC BB66 | Tuba mouthpiece; especially large cup for dark and vibrant sound in orchestral playing |
| YAC BB66B | Tuba mouthpiece; good for Eb and F tubas, with shallower cup than 66 for responsiveness and flexibility in all registers |
| YAC BB66D4 | Tuba mouthpiece; deep cup and large throat for dark sound in orchestral playing |
| YAC BB67 | Tuba mouthpiece; medium-sized cup for responsive, versatile playing in all registers |
| YAC BB67B4 | Tuba mouthpiece; shallow cup to ease articulation and higher register playing, as on F tuba |
| YAC BB68B | Tuba mouthpiece; small cup volume to large rim diameter augments clarity with large tubas (Bb and C) and tonal fullness with small tubas (F tuba) |
| YAC BOBOSOLO | Tuba mouthpiece; gold-plated rim through backbore; quick response and bright sound, designed for solo playing |
| YAC BOBOSYM | Tuba mouthpiece; gold-plated rim through backbore; solid design with heavier sound, good for symphonic playing |
| YAC 1351 | Vinyl mouthpiece pouch with zipper closure; fits all low brass mouthpieces |
| BGA51 | BG Products hard mouthpiece case; tuba |
| YAC 1000P | Valve oil |
| YAC 1011P | Slide grease |
| YAC 1530 | Tuba harness |
| YAC 1510G | Tuba/baritone lyre; gold lacquer |
| YAC 1510N | Tuba/baritone lyre; nickel-plated |
| YAC 1060 | Lacquer polish |
| YAC 1078P | Vinyl coated flexible cleaning rod; large |
| YAC 1083P | Nylon valve casing brush |
| YAC 1084P | Brass mouthpiece brush |
| YAC 1099P | Untreated polishing cloth; large |
| YAC 1100 | Chamois-like polishing cloth |
| YAC 1666P | Valve casing cleaning rod |
| YAC 1039 | Maintenance kit; piston valve instruments |
| SB19C | Tuba Silent Brass system |
| PM-1 | Silent Brass mute only with cable |
Technology
Audio & Video
History
| Model | YBB-621 |
|---|---|
| Years | 1989- |
| Key | B/Bb |
| Bore | .689" |
| Bell Size | 14-3/8" |
| Current Model | Current |
Specs
Specifications
| Level | Professional Tuba | |
|---|---|---|
| Key | BBb | |
| Size | 3/4 | |
| Bore | 0.689" | |
| Bell Diameter | 14-3/8" upright bell | |
| Leadpipe Material | Gold brass | |
| Body/ Bell Material | Yellow brass | |
| Finish | Clear epoxy lacquer;Silver ( YBB-621S) | |
| Mouthpiece | 67 | |
| Pistons/ Valves | (4) Monel, front action | |
| Case | BBC-67 | |
| Features/Options | N/A | |


