Casio has a KX-101 model of stereo boombox. This stereo boombox with built- in mini- keyboard one of the rarest and most mythical Casio instruments, about that tremendous nonsense has been told on the internet.

Thus first let me set clear that this thing has absolutely nothing to do with a Casio CZ-101, but is rather a 4 note polyphonic Casio PT-30 variant with arpeggio and a complex sequencer that can be played to and that saves its music files on compact cassettes.

It also has nice rhythms with the same soft analogue percussion like the PT-30.

Casio Kx-101:




Main features:

37 mini keys

12 key buttons + 11 select buttons for direct selectable single finger chords

2 detachable 2-way loudspeaker boxes (with some bass, tweeter is slightly hissy)

Main voice polyphony 4 notes (only 1 in unison mode)

9 preset sounds {piano 1..3, harpsichord, organ, clarinet, flute, horn, mellow}

12 preset rhythms {waltz, ballad, swing, enka, 16beat, rock-1..3, disco-1..2, bossa nova, samba}

Preset sounds, rhythms & sequencer note lengths selected through keyboard keys

Cipher buttons {'0'..'9', 'set', 'c'} (only used by tape deck?)

Main volume slider
Treble & stereo balance sliders
Separate volume sliders for poly (keyboard main voice), mono, chord, arpeggio, Rhythm, mixing microphone
Stereo/ mono switch
Tempo +/- buttons (57 steps, most are slow)
Transpose +/- buttons (13 semitone steps)
Arpeggio
Detuned chorus mode (called "unison", monophonic)
3 rhythm fill-in buttons
Complex sequencer (473 steps, polyphonic with edit features, saves music files on Audio cassette)
2 "one key play" buttons (to play or edit sequencer contents note by note)

Chip hardware:
CPU1= "NEC D1868G 006, 8348XK, Japan" (80 pin SMD)
CPU2= "NEC D1879G 002, 8343XK, Japan" (80 pin SMD)
2x SRAM= "HD C, 61914, 4F, 23" (44 pin SMD)
Tape drive CPU?= "Toshiba TC4514BP, 8418H, Japan" (24 pin DIL)
IC "LB1405, 4A3" (16 pin DIL)
Tuner IC "441, A04" (16(?) pin DIL)
Big hybrid "K4F25S, 46311"