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ASM-3
Analogue Synthesiser

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COMING SOON

The ASM-3 expands even further upon the popular ASM-1 and ASM-2 with a number of
new features and enhancements as detailed below.

FEATURES

Items in red are enhancements over the ASM-2

Power requirements
voltage/current

-15 Volts @ ?mA
+15 Volts @ ?mA

VCO (x2)
inputs 1x 1V/Octave
4 x Exponential FM
2 x linear FM
1 x pulse
1 x sync
1 x sawtooth animator
6x mixer inputs to dedicted VCA
outputs 1 x sawtooth
1 x square
1 x triangle
1 x sine
1 x animated sawtooth
1x VCA
controls 1x COARSE TUNE & 1x FINE TUNE
4 x LOG FM level controls
2 x LIN FM level controls
1 x INITIAL PULSE WIDTH
1 x PWM level control
1x VCA CV
1 x HARD-SOFT Sync switch (VCO 2 only)

VCF 1
state-variable

inputs 3 x CV+
2 x CV-
4 x signal in
outputs 1 x low-pass
1 x band-pass
1 x high-pass
1 x notch
controls 1 x RESONANCE
1 x FREQUENCY
5 x CV level control
4 x Signal level control

VCF 2
transistor ladder

inputs 4 x signal in
3 x CV
outputs 1 x output
controls 1 x EMPHASIS
1 x FREQUENCY
3 x CV level control
4 x Signal levele control
VCA (x4)
inputs 1 x DC signal
1 x AC signal
1 x Linear CV
1 x Logarithmic CV
controls 1 x DC level
1 x AC level
1 x Linear level
1 x Logarithmic level
1 x Offset
outputs 1 x output
ADSR (x2)
inputs

1 x GATE
1 x Re-Trigger
1 x Manual GATE

outputs

1 x ADSR
1 x DSR Phase

controls

1 x ATTACK
1 x DECAY
1 x SUSTAIN
1 x RELEASE

extras

GATE LED
ADSR LED
DSR Phase LED

VCLFO2
inputs 1 x reset /sync
1 x frequency cv
outputs 1 x triangle
1 x square
1 x ramp
1 x slope
controls 1 x Frequency
1 x Hi-LO Range switch
extras

1 x BEAT LED

Noise
inputs 1 x CLOCK overrides internal digitial noise generator clock
outputs 1 x digital white noise out
1 x pink noise out

1 x coloured noise out
1 x random voltage out
controls 1 x Red filter control
1 x Blue filter control
1 x RANDOM rate control
extras Includes red and blue controls of coloured noise
RATE control for RANDOM output
1 x RANDOM LED
LAG Processor
inputs 1 x CV in
outputs 1 x CV out
controls 1 x SHAPE control adjusts between Linear and Logarithmic response
Sample & Hold
inputs

1 x MODULATION
1 x TIMING SIGNAL

1 x SIGNAL IN

outputs

1 x SAMPLE
1 x GATE
1 x TRIGGER

controls 1 x Modulation level
1 x Modulation threshold
1 x Signal level
extras SAMPLE LED
Mixer (x2)
inputs 4 x DC
outputs 1 x OUT-
1 x OUT+
controls 4 x IN level
1 x OUT level
extras 1 x Overload LED
Ring Modulator
inputs

1 x X input
1 x Y input

controls

1 x X input level
1 x Y input level

outputs Sum and Difference of X and Y
Velocitizer
inputs 1 x MIDI Velocity
1 x ADSR
outputs 1 x OUT
External Input (x2)
inputs 1 x External
outputs 1 x Envelope
1 x GATE
1 x TRIGGER
controls 1 x HI-LO Gain switch - selects Microphone input or Line input
1 x External Input level
1 x GATE threshold
1 x TRIGGER THRESHOLD
1 TRIGGER/GATE switch - allows TRIGGER to act as a second GATE
extras 1 x GATE LED
1 x TRIGGER LED
AR/AD/LFO
inputs 1 x Trigger/GATE
outputs 1 x AD/AR
controls 1 x ATTACK
1 x RELEASE
1 x CYCLE switch - turns AD/AR in to a squarewave LFO
1 x AR/AD switch - selects Trigger/Gate mode of module
extras 1 x AR LED
Headphone Amplifier
inputs 2 x IN (Left & Right)
outputs 2 x OUT (Left & Right)
controls 2 x Input level
extras Crossfeed
Sub-Harmonic Generator (x2)
inputs 1 x SUB In
outputs 4 x OUT (/2, /4, /8, /16)
1 x SUB-Mixer OUT
controls 4 x OUT Mixer input levels
VCLFO1
inputs 1 x LOG FM
1 x LIN FM
1 x SYNC
1 x PWM
1x VCA CV
outputs

1 x square
1 x triangle
1 x pulse
1 x sine
1x VCA

controls

1 x LOG FM level
1 x LIN FM level
1 x PWM level
1 x INITIAL PWM
1 x FREQUENCY

1x Waveform Selector in to dedicated VCA

extras 1 x BEAT LED
Fixed Filter Bank
inputs 1 x MAIN IN
3 x BANDPASS IN (each Bandpass Filter input can be patched out of the Resonance Filter Main input)
outputs 1 x MAIN OUT
3 x BANDPASS OUT (each Bandpass Filter output can be patched out of the Resonance Filter MAIN output)
controls 3 x GAIN
3 x Q
3 x Frequency
A440 Reference
outputs 1 x A440 ( 439.45Hz sinusoid)
controls 1 x Power On/Off
2x8 Sequencer
inputs 1 x GATE (Sequencer Enable)
1 x Clock IN
1 x Transpose
outputs 1 x Clock OUT
2 x CV/WAVE Outputs (CHA & CHB)
2 x GATE Outputs (CHA & CHB)
controls 1 x Manual GATE (Sequencer Enable)
1 x Run/Stop
1 x Step
1 x Gate Restart
1 x GATED - Free-Run selector
2 x Loop-Hold selectors (CHA & CHB)
2 x Step Length selectors
1 x Gate-Clock selector
1 x Clock Rate
1 x Hi-Lo CLock Rate
1x CV/WAVE selector
Pan-Crossfader
inputs 2 x CV(1x CV LEFT & 1x CV RIGHT)
1 x X-Fade
outputs Internally connected to VCA3 & VCA4
controls 2 x CV Levels
1 x X-Fade Level
1x X-Fade Enable
Spring Reverb
inputs 2 x Signal IN
outputs 1x Reverb Out
controls 2 x IN Levels
1 x Wet-Dry selector
1 x Wet-Dry mix
1 x Feedback
extras 10-digit LED monitor

These circuits are spread across 2 boards:-

  1. VOICE Board (3D Model)
  2. UTILITY Board (3D Model)

VOICE Board

The Voice board hosts:-

  1. VCO1 - SubHarmonic1 - VCO-VCA1
  2. VCO2 - SubHarmonic2 - VCO-VCA2
  3. VCF1
  4. VCF2
  5. VCA1 - Lin/Log
  6. VCA2 - Lin/Log
  7. ADSR
  8. AD/AR/LFO
  9. VCLFO1 - VCLFO-VCA
  10. VCLFO2
  11. MIXER1
  12. MIXER2
  13. RING Modulator
  14. LAG
  15. Velocitizer

UTILITY Board

The Utility board hosts:-

  1. 1x A440 Reference
  2. 1x Envelope Follower
  3. 2x External Input
  4. 1x Headphone Amplifier (stereo)
  5. 1x Filter Bank
  6. 1x Noise Generator (White, Pink, Violet and Random)
  7. 1x Sample & Hold
  8. VCA3 - Lin/Log
  9. VCA4 - Lin/Log
  10. 1x Pan/X-Fader linked to VCA3 & VCA4
  11. 1x Spring Reverb
  12. 1x 2x8 Sequencer

 


 


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Copyright 2000. All rights reserved.     Revised: April 25, 2013