A-180-2

Doepfer 2HP
MULT UTILITY

Verified sheet

The facts on this sheet have been cross-checked against the sources below.

Sources
Suggest a correction

Passive multiple. Eight interconnected jacks shipped from factory as two independent 4-way multiples (jacks 1–4 and 5–8). Closing an internal solder bridge joins all eight into a single 8-way mult. No active buffering.

Patch Ideas · 4

Clock distribution
Master clock → Jack 1 · Jack 2/3/4 → sequencer, drum, LFO sync
▸ Show diagram
Patch diagramPatch diagram with 5 modules and 4 connections. Modules: A-180-2, Master Clock, Sequencer, Drum, LFO. Signals: 4 clock.A-180-2Master ClockSequencerDrumLFOJack 1clkJack 2clkJack 3clkJack 4clkClkclkClkclkTrigclkSyncclkclock
Gate to many envelopes
Keyboard gate → Jack 1 · drives four ADSRs in parallel for stacked modulation
▸ Show diagram
Patch diagramPatch diagram with 5 modules and 4 connections. Modules: A-180-2, Keyboard, ADSR 1, ADSR 2, ADSR 3. Signals: 4 gate.A-180-2KeyboardADSR 1ADSR 2ADSR 3Jack 1gateJack 2gateJack 3gateJack 4gateGategateGategateGategateGategategate
Two independent splits
Gate in group 1 · audio in group 2 · two unrelated distributions in 2 HP
▸ Show diagram
Patch diagramPatch diagram with 7 modules and 6 connections. Signals: 3 audio, 3 gate.A-180-2Gate SourceADSRVCAAudioDelayReverbJack 1gateJack 5audioJack 2gateJack 3gateJack 6audioJack 7audioGategateGategateCVgateAudioaudioInaudioInaudioaudiogate
8-way mult (bridge closed)
One LFO fans out to seven destinations after user closes the solder bridge
▸ Show diagram
Patch diagramPatch diagram with 7 modules and 6 connections. Signals: 6 cv.A-180-2LFOVCFVCAVCOFXReverbsolder bridge: closed (1-to-7 mode)Jack 1cvJack 2cvJack 3cvJack 4cvJack 5cvJack 6cvOutcvCVcvCVcvPWMcvCVcvCVcvcv

Behaviors

Dual 1-to-3 (factory default) factory shipping state

Solder bridge open: two isolated groups of four inter-connected jacks. Patch one source into any jack of a group, take three copies from the remaining three jacks of that group.

Single 1-to-7 internal solder bridge closed

Closing the PCB bridge joins both groups into a single bus of eight interconnected jacks — one source, up to seven copies.

Passive = no buffer distributing pitch CV to multiple VCOs

Each additional VCO added to a passive mult loads the source and can drop pitch CV slightly. Doepfer explicitly recommends the buffered A-185-2 for 1V/oct distribution to avoid tuning drift. Safe for audio, gates, clocks, and non-critical CV.

Bidirectional summing caveat cables from multiple sources plugged into one group

All jacks in a group are hard-wired together, so plugging two sources simultaneously ties those outputs together — not a mixer. The group then presents a short or contention depending on output impedances.

Controls

I/O

IN · 2

  • Jack 1 audio or any CV CV
    Any of jacks 1–4 can act as input; the other three in the group carry the same signal.
  • Jack 5 audio or any CV CV
    Any of jacks 5–8 can act as input for the second group (factory default) or is joined to jacks 1–4 if the solder bridge is closed.

OUT · 6

  • Jack 2 follows source
    Passive copy of whichever jack in group 1 carries the source signal.
  • Jack 3 follows source
    Passive copy within group 1.
  • Jack 4 follows source
    Passive copy within group 1.
  • Jack 6 follows source
    Passive copy within group 2 (or extended group 1 if bridge closed).
  • Jack 7 follows source
    Passive copy within group 2 (or extended group 1 if bridge closed).
  • Jack 8 follows source
    Passive copy within group 2 (or extended group 1 if bridge closed).