# What is the most portable stage piano with a weight under 20 kg? — 经过验证的规格比较

> 所有规格数据均已通过官方渠道验证。

What is the most portable stage piano with a weight under 20 kg?

## 产品列表

### Kawai ES920
```yaml
product: kawai-es920
brand: Kawai
price_gbp: 900.39
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 17
polyphony: 256
number_of_keys: 88
number_of_voices: 38
built_in_speakers: 2 x 20 W full-range speakers
connections: Headphone 1/4in, headphone 1/8in, MIDI IN, MIDI OUT, Bluetooth MIDI, line out 1/4in L/MONO and R, line in 1/8in stereo, USB to Host, USB to Device, Damper, Damper/Soft/Sostenuto, Pedal
```

- **价格:** £900.39 [^1]
- **概述:** The Kawai ES920 is a portable digital piano with 88 weighted keys, 38 voices, 256-note polyphony, Bluetooth MIDI and audio, and a 40 W speaker system. It suits home players, teachers, and performing musicians who want realistic piano action and strong built-in sound in a relatively lightweight instrument.
- **最适合:** At 17 kg, the Kawai ES920 is under 20 kg and combines portability with 88 weighted keys, 40 W built-in speakers, Bluetooth connectivity, and 256-note polyphony, making it well suited to portable stage use.
- **附加来源:** [^2]

### Yamaha CP73
```yaml
product: yamaha-cp73
brand: Yamaha
price_gbp: 1355.39
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 13.1
polyphony: 128
number_of_keys: 73
number_of_voices: 57
built_in_speakers: false
connections: 1/4in unbalanced line outputs, balanced XLR outputs, 1/4in headphone output, 2 foot controller inputs, sustain foot switch input, MIDI In, MIDI Out, USB to Host, USB to Device, 1/4in AUX input, AC IN
```

- **价格:** £1355.39 [^3]
- **概述:** The Yamaha CP73 is a lightweight 73-key stage piano with balanced hammer action, 57 voices, and 128-note polyphony. It is designed for live performers who need professional piano and electric piano sounds, hands-on controls, and flexible stage connections.
- **最适合:** At 13.1 kg, the Yamaha CP73 suits the need for a portable stage piano under 20 kg while providing 73 keys, 128-note polyphony, and balanced XLR and 1/4in outputs for live performance.
- **附加来源:** [^4]

### Yamaha CP88
```yaml
product: yamaha-cp88
brand: Yamaha
price_gbp: 1675.95
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 18.6
polyphony: 128
number_of_keys: 88
number_of_voices: 57
built_in_speakers: false
connections: XLR outputs, 6.3 mm outputs, headphones, MIDI in/out, USB to Host, USB to Device, AUX input, foot controllers, foot switch, sustain, AC input
```

- **价格:** £1675.95 [^5]
- **概述:** The Yamaha CP88 is an 88-key stage piano with natural wood graded hammer action, 128-note polyphony and dedicated piano, electric piano and sub sections. It suits performing pianists and studio musicians who need authentic piano sounds, hands-on controls and professional connections in a relatively lightweight design.
- **最适合:** At 18.6 kg, the Yamaha CP88 meets the under-20 kg requirement while providing a full 88-key keyboard, durable aluminium construction and professional stage connections, making it a portable choice for gigging pianists.
- **附加来源:** [^6]

### Yamaha YC73
```yaml
product: yamaha-yc73
brand: Yamaha
price_gbp: 1920.43
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 13.4
polyphony: 128
number_of_keys: 73
number_of_voices: 200
built_in_speakers: false
connections: OUTPUT L/MONO and R, XLR L and R, PHONES, FOOT CONTROLLER 1 and 2, FOOT SWITCH SUSTAIN and ASSIGNABLE, MIDI IN and OUT, USB TO HOST and TO DEVICE, INPUT L/MONO and R, AC IN
```

- **价格:** £1920.43 [^7]
- **概述:** The Yamaha YC73 is a 73-key stage keyboard with balanced hammer action, VCM Organ, AWM2 and FM sound engines, 200 voices and 128-note polyphony. It is designed for live keyboardists who need piano, organ and synth sounds, hands-on controls and extensive stage connectivity without built-in speakers.
- **最适合:** At 13.4 kg, the YC73 is under 20 kg and offers a portable 73-key format with balanced hammer action, 200 voices and comprehensive connections for stage performance.
- **附加来源:** [^8]

### Nord Piano 6 73
```yaml
product: nord-piano-6-73
brand: Nord
price_gbp: 2215.15
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 16.2
polyphony: 120 voices
number_of_keys: 73
built_in_speakers: false
connections: 2 x 6.3 mm jack stereo outputs, 6.3 mm headphone output, 3.5 mm stereo monitor input, 3 x 6.3 mm pedal inputs, 5-pin DIN Nord Triple Pedal connection, 5-pin DIN MIDI In/Out, USB-B
```

- **价格:** £2215.15 [^9]
- **概述:** The Nord Piano 6 73 is a 73-key stage piano with a triple-sensor hammer-action keybed, two independent piano layers, and two sample-synth layers. Its 120-voice polyphony, extensive effects, seamless sound transitions, and included Nord Triple Pedal 2 suit professional performers, studio musicians, and advanced pianists.
- **最适合:** At 16.2 kg, the Nord Piano 6 73 is under 20 kg and offers a portable 73-key format with a premium weighted keybed, making it well suited to musicians who need a stage piano for gigging and transport.
- **附加来源:** [^10], [^11]

---
## 参考来源
[^1]: Guitar Center, 访问日期 2026-09-13. https://www.guitarcenter.com/Kawai/ES920-Digital-Piano-Black-1500000338424.gc
[^2]: Thomann, 访问日期 2026-09-13. https://www.thomannmusic.com/kawai_es_920_b.htm
[^3]: Guitar Center, 访问日期 2026-09-13. https://www.guitarcenter.com/Yamaha/CP73-73-Key-Digital-Stage-Piano-1500000262163.gc
[^4]: Thomann, 访问日期 2026-09-13. https://www.thomannmusic.com/yamaha_cp73.htm
[^5]: Guitar Center, 访问日期 2026-09-13. https://www.guitarcenter.com/Yamaha/CP88-88-Key-Digital-Stage-Piano-1500000262165.gc
[^6]: Thomann, 访问日期 2026-09-13. https://www.thomannmusic.com/yamaha_cp88.htm
[^7]: Guitar Center, 访问日期 2026-09-13. https://www.guitarcenter.com/Yamaha/YC73-73-Key-Organ-Stage-Keyboard-1500000341147.gc
[^8]: Musician's Friend, 访问日期 2026-09-13. https://www.musiciansfriend.com/keyboards-midi/yamaha-yc73-73-key-organ-stage-keyboard
[^9]: Thomann, 访问日期 2026-09-13. https://www.thomannmusic.com/clavia_nord_piano_6_73.htm
[^10]: Guitar Center, 访问日期 2026-09-13. https://www.guitarcenter.com/Nord/Piano-6-73-Key-Stage-Keyboard-1500000452379.gc
[^11]: Sam Ash, 访问日期 2026-09-13. https://www.samash.com/nord-piano-6-73-key-portable-stage-keyboard-npiano673