zSUM-4

Stereo summing line mixer

Analog stereo summing mixer in euro modular format with dual servo dc removal technology.

Main features:

  • Two mixing stages both channels.
  • The shortest signal path.
  • No coupling capacitors in the signal path.
  • Efficiently removing of DC component through servo amplifiers in each mixing stage.
  • Expandable, linkable.

Specifications

  • Main inputs:               10 (5 stereo pairs)
  • Auxiliary inputs (inverted) for FX return and linking:   (2 stereo pairs)
  • Auxiliary outputs (inverted) for FX send and linking:    2 (1 stereo pair)
  • Main outputs:           (1 stereo pair)\
  • Monitoring outputs: 4 (2  stereo pairs) switchable between main and AUX out.
  • Input impedance: 47kOhm
  • Output Impedance: LOW (Near zero) in normal operations, 220 Ohm in short circuit.
  • Mutable front panel inputs.
  • PAD -12dB buttons in each mixing stage.
  • Unity gain  when not pressed PAD buttons.
  • Form factor: Eurorack
  • Сonsumption current: 20mA without load.
  • Width:  10hp (50.5mm)
  • Depth– 45мм (30mm without rear connectors)

zSUM-4 DIY resources on GitHub