Bias 2

A precision scaler and offsetter in 2 HP, to interface signals whose ranges do not match. Together its two independent sections convert between the common Eurorack ranges, −5 to +5 V, 0 to +5 V and 0 to +10 V.

Key features

• Two independent sections, each with two inputs and two outputs
• The second input of each is normalled to a reference voltage, +5 V at the top and −5 V at the bottom
• Outputs at unity gain, plus halving at the top and doubling at the bottom
• Transparent for control voltages, audio and gates alike
• Also two dual-input unity gain mixers, −6 dB and +6 dB gain stages, or a fixed voltage source with several outputs