U Series
| U1 | U3 | ||
|---|---|---|---|
| Speaking Length of #1 bass string | 46.8" | 47.5" | |
| Hammer Weight | 22 lbs. | 22 lbs. | |
| Soundboard | Dimension | 2137 square inches | 2369 square inches |
| Material | Spruce | Spruce | |
| Back Post Material | Spruce | Spruce | |
| V-Pro Plate | Yes | Yes | |
| Bridge Material | Hard Maple | Hard Maple | |
| Pinblock Material | Hard Maple | Hard Maple | |
| Tuning Pins | Cut thread | Cut thread | |
| Center Pedal | Mute | Mute | |
| Metal Action Rail | Yes | Yes | |
| Seasoned for Destination | Yes | Yes | |
| Soft-Close Fallboard | Yes | Yes | |
| Keyboard | Number of Keys | 88 keys | - |
| - | 88 keys | ||
| Pedals | Soft Pedal, Mute Pedal, Damper Pedal | Soft Pedal, Mute Pedal, Damper Pedal | |
| Finishes | Polished Ebony, Satin Ebony, Satin American Walnut, Polished American Walnut, Polished White, Polished Mahogany | Polished Ebony, Polished Mahogany | |
| Height | 48" | 52" | |
| Width | 60" | 60" | |
| Length | 24" | 26" | |
| Weight | 502 lbs. | 517 lbs. | |
