Featuring a comprehensive collection of onboard Indian instruments (Voices) and an auto accompaniment function (Styles) that draws from a broad spectrum of Indian music genres, the PSR-I400 is the ultimate portable keyboard for learning Indian music. It also comes equipped with a number of lesson functions including a built-in Tabla / Mridangam & Tanpura function called Riyaz, that makes learning to play songs or traditional Indian Raga scales a fast and enjoyable process. 
| PSR-I400 | ||
|---|---|---|
| Body | Color | Metallic Dark Gray |
| Dimensions | Width | 946 mm (37-1/4") |
| Height | 140 mm (5-1/2") | |
| Depth | 405 mm (15-15/16") | |
| Weight | Weight | 6.8 kg (15 lbs., 0 oz.) not including batteries |
| Keyboard | Number of Keys | 61 |
| Type | Organ Style | |
| Touch Response | Yes (Soft, Medium, Hard, Fixed) | |
| Other Controllers | Pitch Bend | Yes |
| Control Knobs | Yes (x 2) | |
| Display | Type | LCD |
| Size | 92 mm x 42 mm | |
| Backlight | Yes | |
| Language | English | |
| Panel | Language | English |
| Tone Generation | Tone Generating Technology | AWM Stereo Sampling |
| Polyphony | Number of Polyphony (Max.) | 32 |
| Preset | Number of Voices | 764 (225 Panel Voices + 27 Drum/SFX Kits + 46 Arpeggio Voices + 466 XGlite Voices) |
| Featured Voices | Indian Voice x 30, Sweet! Voice x 5, Cool! Voice x 3 | |
| Compatibility | GM | Yes |
| XGlite | Yes | |
| Types | Reverb | 9 types |
| Chorus | 4 types | |
| Master EQ | 6 types | |
| Harmony | 26 types | |
| Ultra-Wide Stereo | 3 types | |
| Functions | Dual/Layers | Yes |
| Split | Yes | |
| Arpeggio | 162 types | |
| Preset | Number of Preset Styles | 218 (Incl. Indian 35 Styles) |
| Fingering | Multi finger | |
| Style Control | ACMP ON/OFF, SYNC START, SYNC STOP, START/STOP, INTRO/ENDING/rit., MAIN/AUTO FILL, TRACK ON/OFF | |
| File Format | Style File Format (SFF) | |
| Other Features | One Touch Setting (OTS) | Yes |
| Music Database | 355 (Incl. Indian 50 music) | |
| External Styles | 5 Styles | |
| Preset | Number of Preset Songs | 115 (Incl. 15 Raga Scale Song) |
| Recording | Number of Songs | 10 |
| Number of Tracks | 6 (5 Melody + 1 Style) | |
| Data Capacity | Approx. 19,000 notes (when only melody tracks are recorded) | |
| Compatible Data Format | Playback | SMF (Formats 0 & 1) |
| Recording | Original File Format (SMF 0 conversion function) | |
| Registration | Number of Buttons | 4 (x 8 banks) with Freeze function |
| Lesson/Guide | Yamaha Education Suite (Y.E.S.) | Yamaha Education Suite (Y.E.S.6)/ Listening, Timing, Waiting |
| Lesson/Guide | Lesson 13 (Listening, Timing, Waiting), Repeat & Learn, Chord Dictionary | |
| Overall Controls | Metronome | Yes |
| Tempo Range | 11 - 280 | |
| Transpose | -12 to 0, 0 to +12 | |
| Tuning | 427.0 440.0 453.0 Hz (approx. 0.2 Hz increments) | |
| Riyaz (Tabla/Tanpura Pattern) | Preset | 20 |
| Sections | 5 | |
| Miscellaneous | PIANO Button | HARMONIUM/PIANO Button |
| Storage | Internal Memory | Approx. 1.54 MB |
| External Drives | USB flash drive | |
| Connectivity | DC IN | 12 V |
| Headphones | Headphones/Output | |
| Sustain Pedal | Yes | |
| USB TO DEVICE | Yes | |
| USB TO HOST | Yes | |
| Amplifiers | 2.5 W + 2.5 W | |
| Speakers | 12 cm x 2 | |
| Power Supply | PA-150B or an equivalent recommended by Yamaha, Six AA size alkaline (LR6), manganese (R6) or Ni-MH rechargeable (HR6) batteries | |
| Power Consumption | 16 W (When using PA-150 AC adaptor) | |
| Auto Power Off Function | Yes | |
| Included Accessories | Music Rest | Yes |
| Song Book | Download from Yamaha web site | |
| Power Adaptor | Yes | |
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