Eurorack Reference / modules /alm-busy-circuits/stereo-sum audit site v0.1 — milestone 3
alm-busy-circuits/stereo-sum

Stereo Sum

ALM Busy Circuits

Unity gain stereo summing mixer with four stereo input pairs summed as pairs to two independent mix outs or all as a single combined mix. DC coupled for audio or CV. Top mixer outputs normalize to bottom mixer section.181

Capabilities 2

DC Coupleddc-coupled
All inputs are DC coupled, allowing mixing of both audio and CV signals.181
Unity Gain Mixerunity-gain-mixer
Four stereo input pairs summed at unity gain to two independent mix outputs or one combined mix output.181

Jacks 8 — 4 in / 4 out

NameSignalVoltageDescription
Inputs (4)
MIXER1_IN_L1mixedLeft input of stereo pair for Mixer 1. Left input is normalized to Right for mono signals.181
MIXER1_IN_R1mixedRight input of stereo pair for Mixer 1. Left input is normalized to Right for mono signals.181
MIXER2_IN_L1mixed181
MIXER2_IN_R1mixed181
Outputs (4)
STEREO MIX OUTPUT 1 LeftmixedLeft stereo mix output for Mixer 1. Normalized to bottom mixer section if left unpatched.181
STEREO MIX OUTPUT 1 RightmixedRight stereo mix output for Mixer 1. Normalized to bottom mixer section if left unpatched.181
STEREO MIX OUTPUT 2 LeftmixedLeft channel of final stereo mix output from Mixer 2.181
STEREO MIX OUTPUT 2 RightmixedRight channel of final stereo mix output from Mixer 2.181

Parameters 0

No parameters recorded.

Firmware history 0 versions

No firmware history recorded.

References 2

  1. [181]
    ALM-038 Stereo Sum Manualmanual
    verified 2026-05-06
  2. [182]
    ALM Stereo Sum product pageproduct_page
    verified 2026-05-06