Casio CTK-4200
The Casio CTK-4200 is a 61-key portable electronic keyboard which has a large backlit display with notation and fingering display, boxed keys, an integrated Casio Step-Up Lesson System, uses an AHL sound source, Rhythm Editor, Sampling, and DSP Effects.
The CTK-4200 has 600 preset tones (455 Stereo AHL tones, 128 GM tones, 17 drum sets), as well as 8 user sampled tones (5 custom instruments, 3 custom drum kits), 180 rhythms, 162 songs (100 songs, 49 exercise songs, 2 Casio demo tunes, and 9 user songs), 305 Music Presets, 2 digital effects (reverb, chorus), 48-note polyphony, a layer/split function, 3 levels of touch-sensitivity (which can be switched off), and a 6 track sequencer function.
The Casio CTK-4200 has a Rhythm Editor that can edit existing rhythms, thus allowing the user to create their own rhythms. The keyboard is compatible with General MIDI, as it includes an SMF player which can store and play MIDI files from a Mac or a PC. A recording function with a maximum of 6 tracks lets the user record their own pieces using real-time recording or step recording. A Piano/Organ button is also included which, when pressed, the tone automatically sets to "000 Stereo Grand Piano" or "079 Drawbar Organ 1".
The keyboard itself weighs 10.14 lbs and is 37.36 x 13.78 x 4.02 mm. The jacks on the rear of the keyboard consist of a 12V DC adapter jack, a phones/output jack, 1/8” audio line input jack, sustain/assignable jack, and a Class Compliant USB MIDI port. In addition to the DC adapter, 6 AA batteries can also be used to power the keyboard. A sampling feature is available, which utilizes the audio in jack. It changes pitch and tempo, instead of just changing pitch, so it produces a similar effect to tape recorder.
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