u2X

Transient Modules 12HP
UTILITY MULT BUFFER

Verified sheet

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1U Intellijel dual buffered multiple. Each section copies one input to three active outputs. IN 1 is normalled to section 2, giving up to 6 copies of a single signal. Bicolor LED per section shows polarity.

Patch Ideas · 3

Precision V/Oct fan-out to three oscillators
Keyboard V/Oct → IN 1 · outputs 1x1, 1x2, 1x3 → three VCO V/Oct inputs.
Walkthrough
  1. Patch your pitch source (keyboard, sequencer, quantizer) into u2X IN 1.
  2. Patch 1x1 → VCO A V/Oct.
  3. Patch 1x2 → VCO B V/Oct.
  4. Patch 1x3 → VCO C V/Oct.
  5. Tune each VCO by ear or use its own fine-tune knob — the buffered outputs will track cleanly across octaves without the pitch droop a passive mult can cause.
Signal out 1x1, 1x2, 1x3 — three identical buffered copies of the V/Oct pitch CV, each stable enough to drive a VCO without tuning sag.
Listen for All three oscillators hold tuning together even when you play several octaves. If you swap this for a passive stackcable, the oscillators will drift flat by tens of cents as more loads are added — that's exactly what the buffer is preventing.
▸ Show diagram
Patch diagramPatch diagram with 5 modules and 4 connections. Modules: u2X, Keyboard, VCO A, VCO B, VCO C. Signals: 4 pitch.u2XKeyboardVCO AVCO BVCO CIN 11v/oct1x11v/oct1x21v/oct1x31v/octPitch1v/octV/Oct1v/octV/Oct1v/octV/Oct1v/octpitch
One clock, six destinations
Clock → IN 1 · leave IN 2 unpatched so all six outputs carry the same clock.
Walkthrough
  1. Patch master clock (or a square LFO) into u2X IN 1.
  2. Leave IN 2 unpatched — IN 1 is normalled down to section 2, so 2x1/2x2/2x3 also carry the clock.
  3. Fan out: 1x1 → sequencer clock, 1x2 → drum trig, 1x3 → sample-and-hold trig, 2x1 → envelope gate, 2x2 → clocked delay, 2x3 → visual trigger / tap.
  4. Confirm the LED on section 1 is blinking green in time — section 2's LED will blink in sync because it's receiving the same normalled signal.
Signal out 1x1, 1x2, 1x3, 2x1, 2x2, 2x3 — six buffered copies of the same clock/trig, ready to drive anything that needs a tick.
Listen for Everything downstream stays locked to the same master tick. Because each output is actively buffered, fast triggers stay sharp even when feeding many modules — no slew rounding or missed gates from loading.
▸ Show diagram
Patch diagramPatch diagram with 8 modules and 7 connections. Signals: 7 trigger.u2XClockSequencerDrumS&HEnvelopeDelayScopeIN 1trig1x1trig1x2trig1x3trig2x1trig2x2trig2x3trigOuttrigClocktrigTrigtrigTrigtrigGatetrigClocktrigTrigtrigtrigger
Two mod buses in parallel
LFO → IN 1 for slow bus · envelope → IN 2 for fast bus · route copies to different destinations.
Walkthrough
  1. Patch a slow LFO into IN 1 — this becomes your slow modulation bus.
  2. Patch an envelope into IN 2 — this breaks the normal and becomes your fast modulation bus.
  3. From section 1: 1x1 → filter cutoff, 1x2 → VCA bias, 1x3 → panner — all wobble with the LFO.
  4. From section 2: 2x1 → filter resonance, 2x2 → FM index VCA, 2x3 → wavefolder — all punch with the envelope.
  5. Watch the LEDs: section 1 should slowly fade green/red with the LFO; section 2 flashes green on each note.
Signal out Section 1 outputs carry the LFO (bipolar, slow). Section 2 outputs carry the envelope (unipolar, fast). Two independent modulation buses, three taps each.
Listen for A patch where slow, wide motion (LFO on filter/VCA/pan) coexists with sharp per-note accents (envelope on resonance/FM/fold). The two buses never cross-talk because the sections are fully independent once IN 2 is patched.
▸ Show diagram
Patch diagramPatch diagram with 8 modules and 8 connections. Signals: 8 cv.u2XLFOEnvelopeVCFVCAPannerFM VCAWavefolderIN 1cvIN 2cv1x1cv1x2cv1x3cv2x1cv2x2cv2x3cvOutcvOutcvCutoffcvResonancecvBiascvCVcvCVcvCVcvcv

Behaviors

Buffered Copy signal → IN 1 or IN 2

Active op-amp buffer drives three identical outputs per section. Unlike a passive mult, the buffer prevents V/Oct sag and impedance loading when copies feed multiple oscillators or high-impedance destinations.

1-to-6 Mult signal → IN 1, IN 2 unpatched

IN 1 is normalled to IN 2, so one input produces six identical buffered copies across all outputs (1x1, 1x2, 1x3, 2x1, 2x2, 2x3).

Two Independent Mults signals → IN 1 and IN 2

Patching IN 2 breaks the normal. You then have two independent 1-to-3 buffered mults in 12HP / 1U.

Polarity Monitor any signal present

Bicolor LED lights green on positive voltage, red on negative. Useful for confirming CV is arriving and for distinguishing unipolar envelopes from bipolar LFOs at a glance.

Controls

Section 1 IN 1 LED Bicolor LED showing polarity and level of the signal at IN 1.
green = positive · red = negative · brightness tracks amplitude
Section 2 IN 2 LED Bicolor LED showing polarity and level of the signal at IN 2 (or IN 1 when IN 2 is unpatched).
green = positive · red = negative · brightness tracks amplitude

I/O

IN · 2

  • IN 1 ±10V (audio or CV) CV
    Input to section 1. Buffered and copied to outputs 1x1, 1x2, 1x3. Also normalled down to section 2's input when IN 2 is unpatched.
  • IN 2 ±10V (audio or CV) CV
    Input to section 2. Buffered and copied to outputs 2x1, 2x2, 2x3. Normalled to IN 1 when unpatched.
    NORM → IN 1

OUT · 6

  • 1x1 matches input
    Buffered copy of IN 1.
  • 1x2 matches input
    Buffered copy of IN 1.
  • 1x3 matches input
    Buffered copy of IN 1.
  • 2x1 matches input
    Buffered copy of IN 2 (or IN 1 when IN 2 is unpatched).
  • 2x2 matches input
    Buffered copy of IN 2 (or IN 1 when IN 2 is unpatched).
  • 2x3 matches input
    Buffered copy of IN 2 (or IN 1 when IN 2 is unpatched).