The P-45 features a graded hammer standard (GHS) keyboard. The feel of the keyboard gradually changes according to the register, so that it feels heavier when playing bass parts and lighter when playing treble parts. The piano also features a keyboard with a natural feel, with black keys that feature a matte finish for authentic piano playing close to that of an acoustic piano.
| P-45 | ||
|---|---|---|
| Dimensions | Width | 1326mm |
| Height | 154mm | |
| Depth | 295mm | |
| Weight | Weight | 11.5kg |
| Keyboard | Number of Keys | 88 |
| Type | Graded hammer standard (GHS) keyboard | |
| Touch Sensitivity | Hard/medium/soft/fixed | |
| Panel | Language | English |
| Tone Generation | Piano Sound | AMW Stereo Sampling |
| Polyphony | Number of Polyphony (Max.) | 64 |
| Preset | Number of Voices | 10 |
| Types | Reverb | Yes (four types) |
| Functions | Dual/Layers | Yes |
| Duo | Yes | |
| Overall Controls | Metronome | Yes |
| Tempo Range | 32 - 280 | |
| Transpose | -6 to 0,0 to +6 | |
| Tuning | 414.8 - 440.0 - 446.8 Hz | |
| Connectivity | DC IN | DC IN 12 V |
| Headphones | Standard | |
| Sustain Pedal | Yes (Half pedal available with optional FC3A) | |
| Pedal Unit | No | |
| MIDI | No | |
| AUX OUT | No | |
| USB TO HOST | Yes | |
| Amplifiers | 6 W x 2 | |
| Speakers | 12 cm x 2 | |
| Power Supply | PA-150B or other Yamaha-preferred parts | |
| Power Consumption | 6 W (using PA-150 power adapter) | |
| Auto Power Off Function | Yes | |
| Included Accessories | Music Rest | Yes |
| Pedal/Footswitch | Yes | |
| AC Adaptor | PA-150B or other Yamaha-preferred parts | |