Casio PX-S1100 vs Yamaha P-45
A $799 current Casio against a $449 discontinued Yamaha - a wide enough gap that they compete mainly in the used market. The P-45 manages 64-note polyphony and 10 voices; the PX-S1100 doubles both and adds Bluetooth and USB audio.
| Casio PX-S1100 | Yamaha P-45 | |
|---|---|---|
| Key action | Smart Scaled Hammer Action | Graded hammer standard (GHS) keyboard |
| Polyphony | 192 | 64 |
| Sounds / presets | 18 | 10 |
| Speakers | 16 W | 12 W |
| Bluetooth | Yes | No |
| USB audio | Yes | No |
| Weight | 11.2 kg | 11.5 kg |
| Released | 2021 | 2015 |
| Status | current | legacy |
| Keys | 88 | 88 |
| Category | digital-piano | — |
| Dimensions | 132.2 × 23.2 × 10.2 см | — |
| Power Consumption | 12V=10W | — |
Which one should you buy?
- Choose the Yamaha P-45 if budget is the priority — it is about $350 cheaper (approx.).
- Choose the Casio PX-S1100 if lighter to carry to gigs and lessons (11.2 kg vs 11.5 kg).
- Choose the Casio PX-S1100 if you layer sounds or use the sustain pedal heavily (192 vs 64).
- Choose the Casio PX-S1100 if you want more variety of built-in voices (18 vs 10).
- Choose the Casio PX-S1100 if you practise out loud without an amp (16 W vs 12 W).
- Choose the Casio PX-S1100 if you want wireless MIDI/audio from a phone or tablet.
Casio PX-S1100
The PX-S1100 is the modern instrument: 192-note polyphony, 18 sounds, Bluetooth and USB audio in a 232 mm-deep, 11.2 kg chassis.
Yamaha P-45
The P-45 is only worth it at a heavy discount: 64-note polyphony, 10 voices and no Bluetooth or USB audio.
Full spec sheets: Casio PX-S1100 · Yamaha P-45. Rows with a highlighted background differ.