2hp — Unity

Unity Manual PDF
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2hp Unity Mixer – Cheat Sheet

A dual unity-gain mixer for Eurorack, allowing for flexible mixing of both audio and CV signals in three different summing modes.

#	Label	Type	Function
1	MODE	Toggle	3-position switch to select between Averaging, Unity, or Split mode

Averaging Mode (UP): All inputs = gain of 1/3. Best for mixing audio, preserves relative loudness.
Unity Mode (MIDDLE): All inputs = gain of 1. Best for mixing control voltages (CV).
Split Mode (DOWN): Top mixer = gain 1; Bottom mixer = gain 1/3. Mix CV on top, audio on bottom.

#	Label	Type	Description & Normalization	Voltage Range
2	Top 3 jacks	IN	Inputs to Mixer 1. Summed and sent to OUT 1. Each jack accepts audio or CV.	±10V CV / Audio typical
3	OUT (top)	OUT	Output of Mixer 1 (top 3 inputs). If patched, Mixer 1 only goes here; if unpatched, also sums to OUT 2.	Up to input sum max
4	Bottom 3 jacks	IN	Inputs to Mixer 2. Summed and sent to OUT 2. Each jack accepts audio or CV.	±10V CV / Audio typical
5	OUT (bottom)	OUT	Output of Mixer 2 (bottom 3 inputs). If OUT 1 unpatched, includes sum of both sections.	Up to input sum max

6-to-1 Mixer: Leave OUT 1 unpatched; OUT 2 will output sum of all 6 inputs (based on mode).
2x3-to-1 Mixer: Patch both OUT 1 and OUT 2. Each OUT is the sum of their respective 3 inputs.
Split Mode: Mix CV with unity gain (top 3 jacks → OUT 1), audio with averaging gain (bottom 3 jacks → OUT 2).

Install with red stripe (cable) down for -12V as per standard Eurorack orientation.