AtomoSynth Koe M6 User manual

AtomoSynth Koe M6.
Analog semi modular synthesizer.
Thank you for purchasing the AtomoSynth, KOE M6 desktop edition. Analog semi modular
synthesizer. n order to enjoy long and trouble free use, please read this manual carefully and use the
instrument correctly. After reading this manual, please keep it for later reference.
Precautions
•Using the unit in the following locations can result in a malfunction.
•n direct sunlight.
•Locations of extreme temperature or humidity.
•Excessively dusty or dirty locations.
•Locations of excessive vibration.
•Close to magnetic fields.

•Please use the included power supply, if you are forced to replace it, use a 15V DC. 2A 5.5mm
barrel plug center positive power supply.
•To avoid breakage, do not apply excessive force to the switches or controls.
•f the exterior becomes dirty, wipe it with a clean, dry cloth.
•Do not use liquid cleaners such as benzene or thinner or cleaning compounds or flammable
polishes.
•Keep foreign matter out of your equipment
•Never set any container with liquid in it near this equipment. f liquid gets into the equipment, it
could cause a breakdown, fire, or electrical shock.
•Be careful not to let metal objects get into the equipment.
Basic operation:
•Connect the included power supply to mains and the power supply output to the Koe power
input.
•Turn on the unit by sliding the power switch to the right.
•Please avoid connecting the power supply to mains while the power switch is in the “on”
position (to the right).
•Connect the “AUD O” output to your mixer or amplifier. Note that the audio output is not
intended to be used with headphones.
•Connect a voltage source (e.g. sequencer, keyboard)to the 1V/Oct input and a gate source to
the Gate input.
•f the Delay module does not start when the unit is turned on, disconnect any cable connected
to the Delay_CV input connector, turn off and then turn the unit on again.
M D channel configuration.
•Connect a midi controller (keyboard, sequencer, computer with a usb to midi adaptor) to the
“M D ” input using the included breakout cable adaptor.

•Push the “Midi Learn” button once, the LED will light.
•Send a midi note from your controller, the red LED will go dark and the Koe will set at the same
midi channel to the controller.
M D CC configuration.
•Connect a midi controller (keyboard, sequencer, computer with a usb to midi adaptor) to the
“M D ” input using the included breakout cable adaptor.
•Push the “Midi Learn” button once, the LED will light.
•Move the desired knob or control in your midi controller, the red LED will go dark and the CC
output will be configured to that midi cc control.
M D synchronization of the random generator module.
•Push the “Midi Learn” button for one second until the mode LED flashes 3 times with white
light. The random generator will be synchronized with the incoming midi clock, and the Rate
knob becomes a clock rate multiplier.
•To reverse it and return to the internal clock, push the “Midi Learn” button for one second until
the mode LED lights in white continuously for one second.
nternal Module Controls and connectors:
Oscillator:
•Tune knob: t adjusts about one octave above or below the central pitch.
•Wave switcher: it sets the output of the oscillator to Saw or Pulse waveform.
•FM knob: t adjusts the level of frequency modulation applied to the oscillator, it is internally
connected to the LFO.
•PW knob: it adjusts the width of the pulse waveform.
•PWM_CV input connector: it adjusts the pulse width by voltage.

•FM_CV input connector: it adjusts the frequency modulation of the oscillator by voltage and is
attenuated by the FM knob, when a cable is plugged to this input, the internal connection to the
LFO is broken.
•1V/Oct input connector: it controls the pitch of the oscillator by voltage, it is calibrated to 1 volt
per octave. t is internally connected to the midi CV output, when a cable is plugged, this
connection is broken.
Mixer:
•OSC knob: This sets the level of the output of the oscillator.
•SUB knob: This sets the level of the output of the square wave sub oscillator.
•-2 / -1 sub octave Switcher: it sets the sub oscillator to 2 octaves or 1octave below the main
oscillator pitch.
•Ext/Fdb. This sets the level of the third channel and out of the factory it is connected to the
output of the DCO.
•EXT input connector: it is the input of the mixer’s thirth channel, when there is nothing plugged
to it is normalized (normally connected) to the DCO. n the circuits side there is a EXT jumper,
if it is set to Fdb, then this connector will be normalized to the audio output for a feedback
effect.
•M X output connector: it outputs the main mix of the mixer.
LFO (Low frequency oscillator)
•LFO knob, it sets the frequency of the low frequency oscillator.
•LFO_CV input connector: it controls the frequency of the oscillator by voltage.
•LFO output connector: it is the output of the low frequency oscillator.
Random Voltage Generator.
•Rate knob: it sets the frequency of the random generator (all modes except midi CC mode).
When in midi sync mode it sets the clock rate multiplier, to 1/4bpm, 1/2bpm, 1/3bpm, 1bpm (at
the center), 3/2bpm, 2bpm, 3bpm, 4bpm, 8bpm as it is turned clockwise.

•Mode knob: it sets the mode and is indicated by a different color of the mode LED as it is
turned clockwise:
•Red; Sample and Hold mode: t generated a stepped random voltage. As the mode
knob is turn clockwise it increases in level up to a range of 0 to 10 volts.
•Blue; Random voltage mode: t generates a random voltage, As the mode knob is
turned clockwise it increases in level up to a range of 0 to 10 volts.
•Green; Dust mode: it generates short pulses of random voltages at a constant rate.
•Magenta; Random gate mode: it generates a gate signal of 10 volts randomly.
•Cyan; Pulse mode: t generates a pulse or square wave at a rate determined by the rate
knob.
•Yellow; midi CC mode: it outputs a voltage determined by the pre configured midi CC
controller.
•RND output connector: it outputs the voltage from the random voltage generator.
VCF (Voltage Controlled Filter)
•Cut Off knob: Set the cut off frequency.
•HP / LP switcher: it sets the filter to High pass or Low pass.
•Peak knob: Set the amount of resonance feedback.
•Mod knob: sets the amount of modulation applied to the cut off frequency, it is internally
connected to the Envelope Generator.
•VCF input connector: it is the audio input to the voltage controlled filter, it is internally
connected to the output of the mixer, when a cable is plugged, it gets disconnected from the
mixer.
•VCF output connector: it is the audio output of the voltage controlled filter.
•CutOff_CV input connector: it controls the cut off frequency by voltage.
•Mod_CV input connector: it controls the cut off frequency by voltage, it is internally connected
to the output of the Envelope Generator, when a cable is plugged, it gets disconnected from
the EG and is attenuated by the Mod knob.

Slope Generator
•Rise knob: it sets the rise time of the slope.
•Loop / Gate switcher: it sets the mode to looping or gate activated.
•Fall knob: it sets the fall time of the slope.
•Rise_CV input connector: it controls the rise time of the slope generator by voltage.
•Fall_CV input connector: it controls the fall time of the slope generator by voltage.
•SlpGate input connector: it is the individual gate input for the slope generator, when a cable is
plugged, it gets disconnected from the Gate input.
•Slope output connector: it outputs the voltage generated by the slope generator.
•-Slope output connector: it outputs the inverted voltage generated by the slope generator.
•SlpPulse output connector: it outputs an internal control pulse generated by the slope
generator.
EG (Envelope Generator)
•A knob: it controls the Attack time of the envelope generator.
•D knob: it controls the Decay time of the envelope generator.
•S knob: it controls the Sustain level of the envelope generator.
•R knob: it controls the Release time of the envelope generator.
•Gate input connector: it is the common gate input for the envelope generator and the slope
generator. t is internally connected to the midi Gate output.
•EG output: it outputs the voltage generated by the envelope generator.
Delay
•Delay knob: it controls the delay time.
•Feedback knob: it sets the feedback level of the delay line, it effectively control the number of
repetitions of the delayed signal.
•Level knob: it sets the level of the delayed (wet) signal to be mixed with the dry signal.
•Delay_CV input connector: it controls the delay time by voltage.
•Delay output connector: it outputs the wet audio signal from the delay module.

Voltage Mixer.
•V_Mix1 knob: it sets the level of the channel 1 of the voltage mixer.
•+12V / -12V Switcher: it sets the offset voltage to the channel 1 to +12 volts or -12 volts (it
internally divides the voltage so the effective output voltage is +6 or -6 volts).
•V_Mix2 knob: it sets the level of the channel 2 of the voltage mixer.
•V_Mix1 input connector: it is the input of the channel 1 on the voltage mixer.
•V_Mix2 input connector: it is the input of the channel 2 on the voltage mixer.
•V_Mix output connector: it outputs the mixed voltage of the mixer.
•-V_Mix output connector: it outputs the inverted mixed voltage of the mixer.
VCA (voltage controlled amplifier)
•VCA_CV input connector: it controls the output level of the VCA by voltage.
•Volume knob, it sets the volume of the main audio output.
•Audio output connector: it outputs the main audio signal.
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