The AJH Synth Precision Voltages (Black) is a high precision Voltage Adder Module for Eurorack Synthesizers, and is suitable for balancing up to 2x Oscillators in a range of 20x Octaves. This Module is not only a very accurate Voltage Source, but also a precise Voltage Adder. It has 2x Channels (A & B) and both full Voltages (Octaves) or 1/12 Volt Steps (Notes) can either be added to or subtracted from the Input Signal, perfect for adding a Voltage Off-Set to the Output of a Sequencer. On the other hand, it can be used to add Switchable Octaves to a VCO that only has coarse and fine-tuning Controls. There is also a Mix Output which allows you to either use Channel A separately, or add or subtract to Channel B.