The Yamaha PSR-I455 PortaTone has been specially optimized for recreating the unique sound of Indian instruments in your keyboard performances and sequences.The PSR-I455 also features a number of enhancements to core functions. It has its own 10- song, 6-track sequencer, as well as a USB TO DEVICE terminal for rapid, convenient storage of songs, styles, and Registration Memory data. Meanwhile, a pair of knob-type controllers provides for more-expressive live performances for example, they can be used for real-time control of assigned effects such as filters or to modify Arpeggio function patterns, of which 162 different types are included. Not only keyboard playing, but also DJ performances can be made much more dynamic and exciting using these controllers.The PSR-I455 can replicate a diverse range of instruments and musical genres from countries and regions all over the world, not just India. As such, it is suitable for a great many different types of music.Specification:Color/FinishSize/Weight

Dimensions	Width	946mm (37-1/4")
	Height	140mm(5-1/2")
	Depth	405mm(15-15/16")
Weight	Weight	6.8kg(15lbs 0oz.)not including batteries

Control Interface

Keyboard	Number of Keys	61
	Type	Organ Style
	Touch Response	Yes
Other Controllers	Pitch Bend	Yes
	Control Knobs	Yes (x 2)
Display	Type	Custom LCD
	Size	92mm x 42mm
	Backlight	Yes
	Language	English
Panel	Language	English

Voices

Tone Generation	Tone Generating Technology	AWM Stereo Sampling
Polyphony	Number of Polyphony (Max.)	32
Preset	Number of Voices	753 (incl. Indian 19 Voices)
	Featured Voices	Indian Voice x 19, Sweet! Voice x 5, Cool! Voice x 3
Compatibility	GM	Yes
	XGlite	Yes

Effects

Types	Reverb	9 types
	Chorus	4 types
	Master EQ	5 types
	Harmony	26 types
	Ultra-Wide Stereo	3 types
Functions	Dual/Layers	Yes
	Split	Yes
	Arpeggio	162 types

Accompaniment Styles

Preset	Number of Preset Styles	206 (incl.Indian 23 styles)
	Fingering	Multi
	Style Control	ACMP ON/OFF, SYNC START, SYNC STOP, START/STOP, INTRO/ENDING/rit., MAIN/AUTO FILL, TRACK ON/OFF
Custom	User Styles	Yes (5 Style)
Other Features	Easy Song Arranger	No
	Music Database	305
	One Touch Setting (OTS)	Yes

Songs

Preset	Number of Preset Songs	110(Onboard, Incl.10 Raga Scale Song)
Recording	Number of Songs	10
	Number of Tracks	6 (5 Melody + 1 Style/Pattern)
	Data Capacity	Approx. 19,000 notes/10 songs (when only "melody" tracks are recorded)Approx. 5,500 chords/10 songs (when only "chord" tracks are recorded)
	Recording Function	Yes
Compatible Data Format	Playback	SMF
	Recording	Original File Format(SMF conversion function)

Functions

Registration	Number of Buttons	4 ( x 8 banks )
Lesson/Guide	Yamaha Education Suite (Y.E.S.)	Yamaha Education Suite (Y.E.S.6)/ Listening, Timing, Waiting
Overall Controls	Metronome	Yes
	Tempo Range	11 - 280
	Transpose	-12 to 0, 0 to +12
	Tuning	427.0 - 440.0 - 453.0 Hz
Miscellaneous	PIANO Button	Portable Grand Button
	Sleep Mode	Yes
Tabla/Tanpura Pattern	Preset	16
	Sections	5

Storage and Connectivity

Storage	Internal Memory	1.54MB
	External Drives	Optional USB Flash Memory
Connectivity	DC IN	12V
	Headphones	x1(/Output) , 1/4(6.3mm) TRS-Stereo Phone Jack
	Sustain Pedal	Yes
	USB TO DEVICE	Yes
	USB TO HOST	Yes

Amplifiers and Speakers

Amplifiers		2.5W + 2.5W
Speakers		12cm x 2 + 3cm x 2

Power Supply

Power Supply		Adaptor (PA-150A), or batteries (Six "AA" size alkaline (LR&), manganes (R6) or Ni-MH rechargable batteries)
Power Consumption		16W
Auto Power Off Function		Yes

Accessories

Included Accessories	Music Rest	Yes
	Song Book	Download from PC