Mehr Music Machines Deuxd

Name: Deuxd
Brand: Mehr Music Machines

Stereo Crossmod VCF

12 HP Eurorack module

Deuxd is a 12HP dual/stereo OTA-style Eurorack VCF with independently selectable lowpass or highpass responses, a shared cutoff system, internal audio-rate modulation, and bidirectional cross-modulation.

Features

Two fully featured filters support dual or stereo processing in 12HP.
Dual OTA-style filter cores with independently selectable lowpass and highpass responses.
Global Cutoff controls both filters while the channel cutoff controls provide offsets.
Sync moves both cutoffs in parallel; Oppose moves Channel 2 inversely to Channel 1.
SUM Output combines both filters in mono and offers two diode-clipping saturation paths.
Channel 1 Audio Input is normalized to Channel 2 Audio Input for dual processing of one signal.
Each channel FM input normally receives the opposite channel's audio input for pre-filter audio-rate modulation; patching an FM input breaks that normalization.
X-MOD applies simultaneous bidirectional post-filter cutoff modulation, with greater depth at higher resonance settings.

Controls & Jacks (23)

Channel 1 Cutoff— Sets Filter 1's cutoff as an offset from the Global Cutoff control; with Global Cutoff at noon, it provides the full cutoff sweep.
Channel 2 Cutoff— Sets Filter 2's cutoff as an offset from the Global Cutoff control; with Global Cutoff at noon, it provides the full cutoff sweep.
Global Cutoff— Sets the shared cutoff position for both filters; the Sync/Oppose switch determines whether their cutoffs move together or in opposite direc
Channel 1 Audio Input— Audio input to Filter 1; the incoming signal is also normalized to Filter 2 Audio Input and Filter 2 FM Input when those destinations are un
Channel 2 Audio Input— Audio input to Filter 2; its signal is also normalized to Filter 1 FM Input when that input is unpatched.
Channel 2 FM Input— Frequency-modulation input for Filter 2; its level is set by the Filter 2 FM Attenuator.
Channel 2 VCF Output— Individual audio output from Filter 2.
Channel 1 Cutoff CV Input— Unattenuated control-voltage input that modulates Filter 1 cutoff independently of the global cutoff input.
X-MOD— Simultaneously feeds Filter 1's output to Filter 2's cutoff and Filter 2's output to Filter 1's cutoff, increasing both cross-modulation pat
Channel 2 Cutoff CV Input— Unattenuated control-voltage input that modulates Filter 2 cutoff independently of the global cutoff input.
Channel 1 Resonance— Controls Filter 1 resonance; self-oscillation begins at approximately the 10 o'clock position and higher settings deepen cross-modulation ef
Global Cutoff CV Input— Control-voltage input for the shared cutoff control, affecting both filters according to the Sync/Oppose switch.
Channel 1 VCF Output— Individual audio output from Filter 1.
SUM Output— Mono audio output containing the summed outputs of both filters, processed by the selected distortion circuit.
Channel 1 FM Input— Frequency-modulation input for Filter 1; its level is set by the Filter 1 FM Attenuator.
Channel 2 Resonance— Controls Filter 2 resonance; self-oscillation begins at approximately the 10 o'clock position and higher settings deepen cross-modulation ef
Sync/Oppose— In Sync, Global Cutoff and its CV move both filters in parallel; in Oppose, Filter 2 moves inversely to Filter 1.
Channel 2 LP/HP— Selects lowpass or highpass response for Filter 2.
Channel 2 FM Amount— Attenuates the signal applied through Filter 2 FM Input.
Channel 1 LP/HP— Selects lowpass or highpass response for Filter 1.
SUM Distortion— Selects between two diode-clipping paths that give the SUM output different flavors of harmonic saturation.
Channel 1 FM Amount— Attenuates the signal applied through Filter 1 FM Input.
Global Cutoff CV Amount— Attenuates control voltage patched into Global Cutoff CV Input.

How-To Guides

Create a variable-width bandpass
Set up mono-to-stereo filtering

Explore the interactive Deuxd panel on BleepDex — tap any control to learn what it does.