Casio Explore the Features of CTK 401 and its Incredible Keyboard Capabilities

			SPECIFICATIONS
GENERAL
Keyboard:	49 standard-size keys, 4 octaves
Tones:	100
Polyphony:	12 notes maximum (6 for certain tones)
Auto accompaniment
Rhythm patterns:	100
Tempo:	Variable (236 steps, = 20 to 255)
Chords:	2 fingering methods (CASIO CHORD, FINGERED)
Rhythm controller:	START/STOP, SYNCHRO/FILL-IN
Accomp volume:	0 to 9 (10 steps)
Song bank
Tunes:	100
Controllers:	PLAY/PAUSE, STOP, REW, FF, LEFT ON/OFF, RIGHT ON/OFF
Musical dictionary
Name display:	TONE, RHYTHM, SONG BANK name/number
Tempo:	Tempo value, metronome, synchro standby, beat indicator
Chord:	Chord name, Chord form
Fingering:	Fingering indcators, parts
Song bank status:	PLAY, PAUSE, REW, FF, playing
Staff:	Four octaves with sharp and flat indications
Keyboard:	Four octaves
Other functions
Transpose:	12 steps (–6 semitones to +5 semitones)
Tuning:	Variable (A4 = approximately 440 Hz ± 50 cents)
Volume:	0 to 9 (10 steps)
Terminals
Phones/Output terminal:	Stereo standard jack
	Output Impedance: 100 Ω
	Output Voltage: 3.0 V (RMS) MAX
Power supply terminal:	9 V DC
Power supply	Dual power supply system
Batteries:	Six AA-size batteries
Battery life:	Approximately 2 hours (SUM-3/R6P)/6 hours (AM3/LR6)
AC adaptor:	AD-5
Auto power off:	Turns power off approximately six minutes after last key operation. Enabled
	under battery power only, can be disabled manually.
Speaker output:	2.0 W + 2.0 W
Power consumption:	9 V	---	7.0 W
Dimensions (HWD):	988 × 332 × 124 mm (38-15/16 × 13-1/16 × 4-7/8 inches)
Weight:	Approximately 3.5 kg (7.7 lbs) (without batteries)

ELECTRICAL

Current drain with 9 V DC:	100 mA ± 20 %
No sound output
Maximum volume	625 mA ± 20 %
with 12 keys C4 to B4 pressed in Synth-Lead 1
Volume: 9 (Max.)
Phone output level (Vrms with 8 Ω load each channel):	67 mV ± 20 %
with key A4 pressed in Synth-Lead 1
Speaker output level (Vrms with 4 Ω load each channel):	900 mV ± 20 %
with key A4 pressed in Synth-Lead 1
Minimum operating voltage:	5.7 V

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