Yamaha DGX-670 vs Yamaha PSR-SX920
A $999 arranger-flavoured portable against a $2,699 semi-professional arranger. The DGX-670 offers 88 weighted keys, 601 voices and 294 styles through 12 W; the SX920 offers 1,587 voices and 525 styles with Revo drums, 50 W of speakers and Bluetooth audio on 61 unweighted keys.
| Yamaha DGX-670 | Yamaha PSR-SX920 | |
|---|---|---|
| Key action | GHS (Graded Hammer Standard) keyboard with matte black keytops | Organ (FSB) |
| Polyphony | 256 | 128 |
| Sounds / presets | 601 | 1587 |
| Accompaniment styles | 294 | 525 |
| Sequencer | 16 tracks (SMF Format 0) | 16 tracks / Unlimited songs / Quick-Multi-Step Recording |
| Sound engine | — | AWM2 + Revo drums |
| Effects | — | VCM |
| Speakers | 12 W | 50 W |
| Bluetooth | Yes | Yes |
| USB audio | Yes | Yes |
| Weight | 21.4 kg | 11.6 kg |
| Released | 2020 | 2024 |
| Status | current | current |
| Keys | 88 | 61 |
Which one should you buy?
- Choose the Yamaha DGX-670 if budget is the priority — it is about $1700 cheaper (approx.).
- Choose the Yamaha PSR-SX920 if lighter to carry to gigs and lessons (21.4 kg vs 11.6 kg).
- Choose the Yamaha DGX-670 if you layer sounds or use the sustain pedal heavily (256 vs 128).
- Choose the Yamaha PSR-SX920 if you want more variety of built-in voices (601 vs 1587).
- Choose the Yamaha PSR-SX920 if you practise out loud without an amp (12 W vs 50 W).
- Note: these are different instrument types (digital-piano vs arranger) — compare within your use case first.
Yamaha DGX-670
The DGX-670 is the one for a pianist who wants styles: 88 weighted keys, 256-note polyphony, 601 voices and a 16-track recorder for a third of the price.
Yamaha PSR-SX920
The SX920 is a genuine gigging arranger: 1,587 voices, 525 styles, Revo drums inherited from the Genos2, 50 W of speakers and Bluetooth audio - with 61 organ-style keys.
Full spec sheets: Yamaha DGX-670 · Yamaha PSR-SX920. Rows with a highlighted background differ.