Metal Synth Assembly Guide Page 4
time for TESTING!!
After powering it up turn the sensitivity and decay controls to max, ensure the source is set to int (internal).
The envelope/trig LED should respond to taps on the front panel, if it doesn’t disconnect the power and check:
- The LED polarity
- The connection to the piezo
Connect the output to an amplifier/powered speaker.
Adjust the VOLUME trimmer to taste, clockwise for less, anti-clockwise for more.
CUTOFF CV ADJUSTMENT: Using your preferred method of tuning, adjust the CV LEVEL trimmer until your preferred tuning is achieved. V/OCT is achievable and tracks nicely for a percussion synth.
Alternatively use your favourite sequencer to feed the Metal synth with a variety of inputs and tune to taste.
Power In – The power socket accepts centre positive, 5.5mm outside 2.1mm to 2.5mm centre and voltages between 9 to 12V DC.
Power Switch – Switches the unit on and off. The power indicator LED is just below the switch.
SOURCE Switch – Selects between the internal sound sources and the 3.5mm AUX IN socket.
FIlter Mode – Select between low pass and band pass modes.
SENS (Sensitivity) – Sets the sensitivity of the trigger/piezo input.
DECAY1 – Sets the decay time of the initial (louder) hit.
DECAY2 – Sets the decay time of the tail.
CUTOFF– Controls the cutoff frequency of the filter, and sets the bias to be summed with the cutoff CV
SWEEP– Controls the amount of sweep applied to the VCF.
SWEEP DIRECTION – Selects the direction of the sweep.
RES (Resonance) – Sets the level of filter resonance, turn to max for self oscillation.
TRIGGER [Input] – Apply external rising edge between 300mV to 9V to trigger. Experiment with the sensitivity knob to find the right trigger level.
CUTOFF CV [Input] – Apply between 0V to 9V to control the VCF cutoff. Use the cutoff knob to find the sweet spot for your external equipment.
OUTPUT – A line level output designed to be fed into a powered amplifier/speaker. Should not be used to drive headphones or low impedance equipment.
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