Quad voltage controlled Clock multiplier/divider

Four independent or sync'ed clocks
Tap tempo button and five clock outputs make the QCD perfect for head-of-the-chain "Master" clock module
Create complex rhythmic patterns by using channels to modulate other channels' clock Division/Multiplication amount
Tap clock output runs at the tapped tempo (even if other channels are being clocked externally)
Each of the four channels has an independent clock IN, OUT, Reset and Div/Mult
Divide or Multiply incoming clock from /64 to x64 on each channel:
Detented knob to snap to integer division/multiples
CV jack to modulate Div/Mult amount
Reset jack per channel restarts the clock when a trigger is received (alters phase of clock)
Clock input jacks are normalized downwards: Tap->Red->Black->Blue->Green
Clock outputs stop automatically when incoming clock stops
LEDs blink to output clocks' tempos
10V clock output pulses, fully buffered. Default is square-wave, but PW is controllable with expander
Daisy chain multiple QCDs or other clock modules using Tap Out jack
Header on the PCB to connect to QPLFO to provide four CV Skew-able, CV Div/Mult-able envelopes

Interfaces with QCD Expander for more features (Pulse Width, Inverted Gate, attenuverters for CV inputs)

A jumper selects using +5V from the power supply, or generating +5V on-board from the +12V rail.

+12V rail:
48mA with jumper selecting external 5V
88mA with jumper selecting internal 5V.
+5V rail:
41mA with jumper selecting external 5V
not used (0mA) with jumper selecting internal 5V.
-12V rail:


  • 48 mA +12V
  • 40 mA -12V
  • 41 mA 5V
  • 26 mm deep
  • Ø 4.48 (48 Votes) Average Rating

This Module is currently available.

$239 submitted Jan 22nd 2013, 12:46 by DonKartofflo | last Change May 18th, 22:29 by FG-Modular

Date Region Description Price Seller
USA## 4ms - Quad Clock Distributor The overall condition of this *4ms Company...$190.00phaelam View
USASelling a 4ms QCD module in wonderful condition. Photos are available, and wi...$195.00pabetancourt View
EUSelling a brand new, never used 4ms Company QCD: Quad Clock Distributor Sh...€230,00rob-meyer View

35 Users are observing this

Buy Online

These merchants probably sell this module. Huh?


ControlFoxtone MusicPerfect Circuit AudioDetroit ModularControl VoltageMeMe AntennaSynthCityI/ONerdAudioThree Wave MusicMissoula ModularSweetwater


Moog Audio