oh an by teh way.the SP-500 is an arranger....
88 key (A0-C8),
Real Weighted Hammer Action II keyboard

Touch Control:
6 velocity curve types


Tone Generator System:
Stereo sampling system


Polyphony:
64 voices maximum


Programs:
ROM 204 +128(GM), RAM64/Drum

Programs: ROM 13+1(GM), RAM 2/Sound Programs, Piano (19), E. Piano/Organ (33), Flute/Sax (47), Brass/Choir (45), Strings (45), Guitar (37), Bass (26), Synth/SE (59), Percussion (46), Includes 8 Melody Voices.


Accompaniment:
Rhythm Styles = ROM 128,
Pianist Rhythm Styles = ROM 26,
User 64


Effects:
Reverb (13),
Others (24)


Recorder:
1 song, 40,000 notes, 8-track (Control, Chord, KBD+5-track),
Maximum 100 songs memory can be stored.
Song Control (Song, Pause, Rew, FF, Play/Stop, Record),
Total max. 128,000 notes when 12 songs are recorded.
Total max.72,000 notes when 100 songs are recorded)


Help Support:
Help supports 2 languages-English/Japanese


Demo Songs:
24 songs for piano programs (right-handed and left-handed is possible to separate),
9 songs for other sound programs,
1 song for Pianist Rhythm Style,
8 songs for other Rhythm Styles,
6 Song demos


Metronome:
On/Off, Tempo, Beat, Volume

Tap Tempo Control


Display:
TouchView Graphical User Interface,
240 x 64 full-dot display


Temperament (Scale):
10 types + 4 user scales


Additional Features:
Key Transpose
Pitch Control
Layer Function
Split Function



Pedals:
Damper, Soft or Assignable


Connectors:
Audio outputs (L/MONO, R),
Audio inputs (stereo mini jacks),
Headphones,
Damper,
Assignable switch


MIDI:
In, Out


Power Consumption:
14 Watt, Local voltage




Dimensions:
50.59" Wide x 12.60" Deep x 4.88" High
1,285(W) x 320(D) x 122(H) mm


Weight:
42.77 lbs./19.4kg


Accessories (Included):
Headphones,
AC/AC Power Supply,
Music Stand


Accessories (Optional):
DS-1H Damper Pedal
This can be connected to the Damper jack to obtain half-damper effects, or connected to the Assignable Switch jack and used as a Soft pedal.

PS-1 Pedal Switch
This can be connected to the Assignable Switch jack, and used to control the Sostenuto Pedal effect, to start/stop the automatic accompaniment function, to produce a fill-in, or to switch the effect on/off.