HT-700

Casio HT-700

Released: 1987

MSRP: ?

Synopsis:

(a.k.a. Hohner KS-49) Adds typical consumer level keyboard accompanyment and speakers Architecture Class: Conventional (subtractive).

Ebay Description:

The Casio HT-700 is a 49 (mini) key, 8 voice digital synthesizer with separate poly, chord and bass sections, featuring a digital oscillator (32 waveforms) and dedicated ADSR filter and amplifier envelopes per voice, along with a shared analog resonant, low pass (24dB) filter, LFO, stereo chorus, 40 presets (20 editable), chord memory sequencer, pattern based bass/drum sequencer, and MIDI. The HT700 can be powered by batteries (6 D) or 9V adapter.

Physical

Form Factor	Dimensions	Weight	Audio Input	Audio Output	Communication Port	Control Input	Control Output	Switch Input	Power
49 mini keys	W:690mm D:241mm H:90mm W:27.2in D:9.5in H:3.56in	3.96kg 8.5lbs	no	stereo	MIDI: IN OUT	no	no	sustain	7W 6 D batteries AD-5 CA-5 9VDC 850mA (- tip)

Interface

Compatibility	Multitimbral Memory	Program Memory	External Storage	External Programming	UI Input	UI Output
-	none	Preset:20 User:20 Cartridge:20	card: RA-100 (RAM)	no	semi-dedicated buttons	LCD display

Architecture

Multitimbral	Polyphony	Unison	Architecture
3 (poly, chord, bass splits)	8	no	DCO->VCF->DCA

Output

Effects	Pan Modulator	Volume Modulator	Headphone
chorus	no	DCA-EG	yes

Control

Arpeggiator	Arpeggiator External	Sequencer	Sequencer Memory	Sequencer External	Continuous	Program Change
no	no	chord memory sequencer pattern based bass/drum sequencer	Songs: 2 (640 chords, 198 operations) Preset patterns:20 User patterns:10 (2-bar patterns, 1-bar fills) Cartridge patterns:10	MIDI	Pitch-Wheel MIDI-PitchBend	MIDI

Keyboard

Key Pressure	Chord Memory	External Control	External Sustain	Key Scaling	Velocity Curves
no	auto	MIDI	pedal	no	no

Source

Name	Signal Class	Waveform	Octave Range	Amplitude Modulator	Harmonics Modulator	Pitch Modulator	Wave Assign Modulator
DCO	digital	chord:15 complex:32 Samples	-	no	no	LFO Pitch-Wheel	no
Percussion	digital	?	-	no	no	no	no

Filter

Name	Signal Class	IC	Resonant	Shape	Frequency Modulator	Resonance Modulator	Shape Modulator
VCF	analog	NJM2090	yes triangleC1 sawC1 squareC1 pulse20C1 pulse10C1 sawtriangleC1 noise	24dB low pass triangleC1 sawC1 squareC1 pulse20C1 pulse10C1 sawtriangleC1 noise	VCF-EG	no	no

Envelope

Name	Level	Rate	Loop	Polarity	Trigger	Level Modulator	Rate Modulator
VCF-EG	sustain	attack decay release	no	no	no	no	no
VCA-EG	sustain	attack decay release	no	no	no	no	no

LFO

Name	Waveform	Delay	Polarity	Sync	Delay Modulator	Level Modulator	Rate Modulator
LFO	random saw:up saw:down square triangle	yes	no	no	no	Mod-Wheel	no

Conventional Models

Synth Museum

"Synthesizer preservation via research and education."