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Casio HT-700

 

 

 

casio ht 700 synthesizer

audio demo Country: Japan
Weight: 4 Kg
Dimensions: 690 (w) X 241 (h) X 90 (d) mm
audio demo trend price : 150€
manual demo video comments

Casio HT-700 (1988)

 

Part of the HT Casio series based on digital SD - spectrum Dynamic Synthesis- with parpaphonic analog filter.

Also rebranded as Hohner Ks49 with wihite case and alternative sound set.

casio ht700 edit lfo fco
casio ht700 edit lfo fco

info KEYBOARD 49 minikeys. Main panel features an LCD display, 42 buttons, 4 sliders and a data wheel. On the left side a simple pitch bender wheel - 5 semitones range.

Back panel terminal connectors:
- RCA signal out
- headphones
- Midi Interface
- sustain pedal input
- card slot.

ac Power supply external PSU 9V DC negative center polarity or batteries.

 

 

editTECH main CPU D78C10 manages 8 voices polyphony based on SD spectrum Dynamic Synthesis + a drum section based on PCM samples.


casio ht700 edit lfo fco
The 8 DCO voices are shared into 2 parts:
- 4 for main part, out of 31 waves
- 4 for accompaniment part (wave choice reduced to 16 waveforms).





edit
WAVES according to TableHooters, the waves are generated by a combination of 2 multipulses PCM waves. These combinated waves generate a total of 31 cycled waves with altered harmonic contents and new overtones.

casio ht700 edit lfo fco DRUM WAVETABLE the ROM also contains more commons PCM samples waveforms (x15) at low resolution: kick, snare, rimshot, hihat (x2), handclap, tom (x2), timbale (x2), bongo (x2) and agogo (x2).





not
INTERFACE the HT700 interface is quite simple, but lacks many real-time tweaks:

casio-ht700

TIP: assign the jogwheel to filter cutoff for real-time action.





filter FILTER
paraphonic analog lowpass filter with resonance (no self-oscillation) based on NJM2069 same found on synthesizer Korg Poly 800 and sampler DSS1.

cutoff

LEFT: low pass IC NJM2069

demo Hear filter VCF

- CLICK to Magnify -





lfo LFO
a single delayed modulator (shapes: saw up, saw down, triangle, square and random ) with fixed DCO pitch destination but at least variable depth amount.

LFo
lfo NOTE: maximum frequency is pretty slow, not to mention a lack of LFO to VCF.





adsr ENVELOPE
2 EGs:

eg - EG1 amplitude: 4-stages ADSR
- EG2 filter: 4-stages ADSR.





lfo SEQUENCER
internal arranger with various functions like chords definition, pitch transposition, auto-accompaniment and tempo change. Each parts is assigned to a single Midi channel and transmits the relative sequence



rast
ht arranger

The internal ROM contains 20 cheesy style presets: rock (x2), beat (x4), disco (x2), pops (x2), swing, slow rock, samba, bossanova, waltz, march, beguine, salsa, reggae, and kraftwerk-style electro pop.

 

fx SYNC Sequences, rhythms and accompaniment can be slaved to external Midi clock.



fx EFFECT
chorus with 3 fixed presets values.
Some boards reported BBD Panasonic+ MN3207.




memroy MEMORY:

- 20 ROM sound
- 20 styles.
- 100 RAM patches.
Expansion CASIO RA-100 card doubles the memory (we're now out of stock!)


casio ra-100 ram card

 

 

midi MIDI basic implementation features only pitch bender control and sustain CC#.
Absolutely NO Exclusive system for edit.

midi TIP: Send and receive Midi channel can be set to 1-13 (Chord = send and receive +1, Bass = send and receive +2, Rhythm = send and receive +3)

 

 

memory Ht-700 related models:

casio hz600

HZ-600 61 keys, 8 voices.first SD spectrum syntesizer released 2 years after the CZ series The non-programmable version is the home keyboard MT-600.
video

casio hz-600

HT-600 -61 keys, 8 voices
video
casio ht3000

HT-3000 61 keys, 8 voices, also a different version labeled HT3500 Full-sized version of ht700
video
casio ht-6000 HT-6000 61 keys, 8 voices - top model of the series with ring modulator, 4 oscillators per voice.
True VCF for each voice
video


 

effet VST PLUGIN / SAMPLED VERSION

  name price
EFM Oddse Plastique De la Mancha

Free VST
no more Updated

video


 

demoAUDIO DEMO

demo strings
demo strings with VCF
demo square with VCF
demo TB303 wannabe
demo PCM drum kit demo
demo demo sent by Nico (thanks!)
demo If you have some interesting demos, or free samples UPLOAD



video VIDEO SELECTION

Casio HT-700 Versatile casio ht700 Casio HT-700: My Patches Demo
demo1 demo2 Patches Demo

Company: Casio
Model: HT-700
Class: synthesizer
Keyboard: 49 minikeys
Dates: 1988
Synthesis: SD spectral
Polyphony: 8 voices
Waves: 31 PCM
Filter: analog lowpass
LFO: 1 modulator
Envelope: 2 EGs
Sequencer: 20 slots

Sync: Midi
Memory: 100 patches
Effect: chorus
CPU: D78C10
VCF IC: NJM2069
PSU: 9 VDC
Demo: 6

 

manual
MANUAL



manual
-HT SERVICE MANUAL/ SCHEMATICS
- MORE DEMO
- FREE SAMPLE SET

 

casio ht700 waveforms spectral cycled
adsr SD spectrum


original scan
adsr original brochure

 

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Casio HT-700 for sale

Casio HT-700 for sale
CHECK OUT EBAY OFFERS

 

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ht 700 patch demo wheel data program ht mixer
awardSPECIAL AWARDS:
solid solid
HYBRID Freak CUTE TOY

comment


REVIEW " A lo-fi toy with strange features :) EG and VCF are not so common - give it a try it is esoteric orconsider bigger and more professioal brothers like HT6000"

manual manual
- filter - LFO
- portable
- limited edit
  -rare

 

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Casio HT-700 Casio HT-700 Synthesizer
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