AJH Synth Precision Voltages
AJH Synth Precision Voltages
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Description / Specs
Description / Specs
Sometimes close enough just isn't good enough – we need precision. Eurorack modular synthesizers use the Volts per Octave standard for pitch control, where a change of exactly one Volt in pitch CV results in an exact one octave change in pitch from the oscillators. Even small inaccuracies in voltage can lead to significant changes in pitch, so for transposition and control voltage addition, it is important to have a very accurate voltage source and adder to keep everything in tune.
The Precision Voltages can be used as a super accurate voltage source, voltage adder, or both at the same time. It has two channels to which voltages representing Octaves and Notes can be added or subtracted. If there is no input to a channel, then it behaves as a voltage source, or if an input is added to that channel, it becomes a very accurate voltage summer that can add a precise voltage to the incoming voltage.
Channel A also allows an external Gate signal to be used to turn voltage addition on and off while still passing the input signal to the output unchanged. We also have a useful Combination Mode, where channel B can be added to or subtracted from Channel A.
A calibration output is also included, which has an accuracy of +/-0.5mV so that it can be used instead of expensive test equipment to calibrate VCOs and similar modules.
More information can be found here: Precision Voltages
