Comparison Chart
Yamaha Japanese Upright Comparison Chart: U1, U3, YUS1, YUS3 and YUS5
The five Yamaha uprights built in Japan, side by side. Start here, then see the U1 vs U3 and YUS charts for the details.
Yamaha makes five upright models in Japan: the U1 and U3 of the U series, and the YUS1, YUS3 and YUS5 of the premium YUS series. This chart puts all five side by side at a glance. For the details within each series, see the U1 vs U3 chart and the YUS1 vs YUS3 vs YUS5 chart.
The Differences in Brief
- Two heights: the U1 and YUS1 are 47-3/4″ tall; the U3, YUS3 and YUS5 are 51-1/2″.
- Two series: the YUS models add CFX-grade hammer felt and strings and a tone escapement to the U series design.
- The YUS5 has Ivorite key tops and a sostenuto middle pedal; the others have a muffler pedal for quiet practice.
- Hybrids: every model comes as a Silent Piano and a TransAcoustic; all but the U3 also come as a Disklavier.
Yamaha Japanese Upright Specifications
| Specification | Yamaha U1 |
Yamaha U3 |
 |
 |
|
|---|---|---|---|---|---|
| Size and Weight | |||||
| Height | 121 cm (47-3/4″) | 131 cm (51-1/2″) | 121 cm (47-3/4″) | 131 cm (51-1/2″) | 131 cm (51-1/2″) |
| Width | 153 cm (60-1/4″) | 153 cm (60-1/4″) | 152 cm (59-3/4″) | 152 cm (59-3/4″) | 152 cm (59-3/4″) |
| Depth | 62 cm (24-1/2″) | 65 cm (25-1/2″) | 62 cm (24-1/2″) | 65 cm (25-1/2″) | 65 cm (25-1/2″) |
| Weight | 228 kg (503 lb) | 246 kg (542 lb) | 229 kg (504 lb) | 247 kg (545 lb) | 253 kg (558 lb) |
| Sound | |||||
| Series | U series | U series | YUS series | YUS series | YUS series |
| Hammer felt and strings | Chosen for each U model | Chosen for each U model | CFX concert grand materials | CFX concert grand materials | CFX concert grand materials |
| Tone escapement | — | — | Yes | Yes | Yes |
| Soundboard | 2,137 sq in | 2,369 sq in | — | — | — |
| Keyboard and Pedals | |||||
| Key surfaces | Acrylic / phenolic | Acrylic / phenolic | Acrylic / phenolic | Acrylic / phenolic | Ivorite / wood process composite |
| Middle pedal | Muffler | Muffler | Muffler | Muffler | Sostenuto |
| Hybrid Versions | |||||
| Silent Piano (SH3) | Yes | Yes | Yes | Yes | Yes |
| TransAcoustic (TA3) | Yes | Yes | Yes | Yes | Yes |
| Disklavier ENSPIRE | Yes | — | Yes | Yes | Yes |
| Made in | |||||
| Country | Japan | Japan | Japan | Japan | Japan |
Specifications from Yamaha (Yamaha’s U series, YUS series, Silent Piano, TransAcoustic and Disklavier ENSPIRE pages).
Head-to-Head Comparisons
Yamaha U1 vs YUS1
Both are 47-3/4″ tall. The YUS1 adds hammer felt and strings made from the same materials as Yamaha’s CFX concert grand, and a tone escapement that lets more of the sound out of the cabinet. Play them back to back and listen to the treble and the sustain.
Yamaha U3 vs YUS3
Both are 51-1/2″ tall, with the same differences: CFX-grade hammers and strings and a tone escapement on the YUS3. The U3 weighs 542 lb, the YUS3 545 lb.
Yamaha U1 vs U3
The same U series design in two heights; the U3’s extra 4 inches buy a larger soundboard and longer bass strings. Our U1 vs U3 comparison chart has the details.
Where to Start
Pick the height first: 48″ for a lower wall or a smaller room, 52″ for the bigger sound. Then decide between the U series and the YUS: play a U3 and a YUS3 one after the other and listen to the treble and the sustain.
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More Comparison Charts
- Yamaha U1 vs U3 Comparison ChartThe two U series uprights side by side: height, soundboard, bass strings, construction and the hybrid versions of each.
Yamaha CX Series Comparison Chart: C1X to C7XThe six CX series grands side by side, from the 5'3" C1X to the 7'6" C7X: size, weight, construction and hybrid versions.
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