For Sale: Tested and working classic Casio electronic musical instrument with two original external Casio speakers and original Casio AC adapter/power supply.
Works 100%, shows very little wear, nice and clean. Great sounds especially some of the stereo effects. All keys, buttons, controls, etc. working correctly. Casio AC adapter is the correct model AD-5U,
Info from the web on the MT-410v and 400v:
This is definitely one of the most interesting Casio keyboards, because it features a genuine analogue synthesizer filter with filter envelope and cut- off/ resonance control sliders, lots of accompaniment variations and separate volume sliders. Additionally it has a wonderful "stereo chorus" rotary speaker/ leslie simulator that produces a great sort of "hemi- sync" mind machine effect with stepless adjustable speed, which makes the thing perfect for brain wave synchronization features in psychedelic meditation or tekkno trance music. A smaller version of this instrument with midsize keys and no built-in speakers was released as Casio MT-400V.
All sliders of this instrument are real analogue potentiometers and thus stepless. The stereo chorus LFO can also modulate the filter in "wah wah" mode, which makes the typical "wokachika" sound known from certain 1970th funk (?) musics. The great accompaniment unit has 4 bass and 4 chord variations and the same unique, dark and sonorously droning squarewave bass tones like the "organ" sound of the Hing-Hon EK-001. In fingered chord mode the accompaniment plays the more notes the more keys are pressed, and this works even perfectly with all non- chord key combinations, which permits very versatile accompaniment sound patterns. (This flexible behaviour is absolute no matter of course, see Yamaha PSS-390 for an annoyingly stubborn example.) And despite this instrument has already many built-in features, there are even still lots of additional keyboard matrix eastereggs to discover, which makes it perfect for circuit bending.
main features:
- 49 fullsize keys
- 2 built-in speakers (stereo, reasonable big but sound a bit dull)
- 8 note polyphony (only 4 notes with accompaniment)
- 4 note polyphony in chord section
- separate analogue sliders for main, rhythm, accompaniment and bass volume
- 12 semi- OBS preset rhythms {rock, pops, disco, 16beat, swing, latin swing | bossa nova, samba, beguine, tango, waltz, slow rock} selected by locking buttons + select button.
- 20 semi- OBS preset sounds {organ, piano, harpsichord, flute, oboe, trumpet, violin, celesta, mandolin, funny | pipe organ, elec. piano, vibraphone, clarinet, accordion, horn, cello, harp, elec. guitar, cosmic tone} selected by locking buttons + select button.
- chord switch {off, fingered, casio chord}
- 4 bass variations switch
- 4 chord variations switch
- tempo slider
- rhythm fill-in and synchro button
- vibrato switch {off, vibrato, delayed vibrato}
- sustain switch {off, sustain, reverb.}
- analogue resonance filter (12dB?) with analogue sliders for {attack, decay, sustain level, cut off, resonance}
- filter input source switch {off, tone, rhythm, bass/ chord, noise} ("noise" = white noise hiss triggered by rhythm)
- "stereo chorus" rotary speaker/ leslie simulator (based on a combination of panning and pitch shifting)
- analogue slider for "stereo chorus/ wah speed"
- main voice sound IC= "NEC D931C 011, 8431KY" (42 pin DIL) with timbres based on 2 mixed multipulse squarewave tones with different digital envelopes, those are differently low pass filtered through capacitors.
- accompaniment CPU= "NEC D930G 011, 8434XK" (80 pins SMD) which produces different multipulse squarewave tones (partly with capacitor envelope) and trigger pulses for external analogue drums.
- analogue percussion {base, snare, open cymbal, close cymbal, low tom, high tom, woodblock} which apparently uses no transistor noise. The cymbal timbre sounds half- way metallic and resembles the one of Yamaha PS-2, thus it may be mixed from 2 shift register feedback noises.
- tuning knob
- filter envelope control jack
- jacks for sustain and "foot volume" (main voice volume) pedals
- jacks for AC adapter, line out and headphone
eastereggs:
There are tons of great keyboard matrix eastereggs; for details see below.
- arpeggio with 4 variants
- 3 additional main voice envelopes (for each preset sound!)
- manual bass
- octave switch (1 octave down during accompaniment)
- key hold (simulates held down keys, likely for a pedal)
- transpose
- chord memory on/ off
- sustain + reverb simultaneously
Email for additional/higher resolution photos.
Send your zip code for a ship quote- should be between $9.99 and $19.99 if you are in continental United States. (Sept. 2016).
