# ... — 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 are the best portable keyboards for professional musicians?

## 产品列表

### Korg Grandstage X
```yaml
product: korg-grandstage-x
brand: Korg
price_gbp: 1478.89
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 55.12
polyphony: 128
connectivity: MIDI IN/OUT, USB Type B, SD card slot, XLR outputs, 6.3 mm audio outputs, audio input, headphone output, damper, switch and pedal inputs
power_supply: Internal AC power supply
number_of_keys: 88
built_in_speakers: false
```

- **价格:** £1478.89 [^1]
- **概述:** The Korg Grandstage X is an 88-key stage piano with RH3 weighted hammer action, seven sound engines and 700 sounds. It is designed for professional stage and studio use, with extensive audio, MIDI and pedal connectivity, but requires headphones, an amplifier or a PA because it has no built-in speakers.
- **最适合:** 适合寻求便携式舞台键盘的专业音乐家，因为它结合了 88 个加重琴键、128 复音、七种音源引擎、平衡 XLR 输出，以及仅 55.12 lb 的易携重量。
- **附加来源:** [^2], [^3]

### Nord Nord Grand 2
```yaml
product: nord-nord-grand-2
brand: Nord
price_gbp: 3326.78
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 46.9
polyphony: 120 voices for piano section, 46 voices for sample synth section
connectivity: MIDI In and Out, USB Type B, audio inputs, audio outputs, headphone output, sustain pedal input, volume pedal input
power_supply: Internal
number_of_keys: 88
built_in_speakers: false
```

- **价格:** £3326.78 [^4]
- **概述:** The Nord Grand 2 is an 88-key stage piano with a premium Kawai hammer-action keybed, triple sensors, dual piano layers, and dual sample-synth layers. It is designed for professional performers who need realistic piano sounds, flexible layering, hands-on controls, and extensive effects without built-in speakers.
- **最适合:** 它适合寻求便携式键盘的专业音乐家，因为其重量为 46.9 lbs，配备 88 个灵敏的击弦机键、钢琴部分 120 声复音、双钢琴层和双合成器层，以及适合现场演出的 MIDI、USB、音频和踏板连接。
- **附加来源:** [^5], [^6]

---
## 参考来源
[^1]: Guitar Center, 访问日期 2026-09-14. https://www.guitarcenter.com/KORG/Grandstage-X-Stage-Piano-1500000421966.gc
[^2]: B&H Photo Video, 访问日期 2026-09-14. https://www.bhphotovideo.com/c/product/1806531-REG/korg_grandstagex_88_key_stage_piano.html
[^3]: Music Store Professional, 访问日期 2026-09-14. https://www.musicstore.com/en_US/USD/Korg-Grandstage-X-inkl-Wooden-stand/art-KEY0005938-000
[^4]: Kraft Music, 访问日期 2026-09-14. https://kraftmusic.com/products/nord-grand-2-stage-piano
[^5]: Guitar Center, 访问日期 2026-09-14. https://www.guitarcenter.com/Nord/GRAND-2-1500000421759.gc
[^6]: Musician's Friend, 访问日期 2026-09-14. https://www.musiciansfriend.com/keyboards-midi/nord-grand-2/m09537000000000