Advertised as
"The economical system synthesizer for serious musicians", the System 100 from
Roland consists of five relatively
self-sufficient components:
Synthesizer 101
A semi-
modular synthesizer with a 37-
note keyboard.
It features one
VCO with
pulse width modulation, an
ADSR envelope generator,
white &
pink noise generator and an
audio mixer for the VCO, noise and
external input. There's also an
LFO with
output to the
VCA, high- and low-pass
filters and controls for auto- and manual
glide.
Expander 102
A Synthesizer 101 without the
keyboard. The glide controls are replaced with a
sample-and-hold module, and instead of a
noise generator there is a
ring modulator.
Mixer 103
A simple
mixer/
amplifier with a
built-in reverb effect.
Sequencer 104
a 12*2
step sequencer with variable
gate time,
switchable range and
buttons for
start,
continue,
stop and
step.
Speaker 109
Just a
pair of
small 3.5W
speakers.
Production period:
1975-
1979
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