2hp Clk
Compact master clock with pause and CV control
2 HP Eurorack module
Clk is a compact 2HP voltage controlled clock generator designed to serve as a master clock in a Eurorack system. It offers an extremely wide tempo range from one pulse every 10 seconds up to audio rate, with a pause function accessible via button or gate input for expressive start/stop control. Its simplicity and dedicated clock-focused design make it a reliable rhythmic backbone for any modular setup.
Features
- Voltage controlled clock generator
- Wide tempo range from 10 seconds per pulse to audio rate
- Two selectable rate ranges via toggle switch
- Slow Range: 10 seconds to 34ms per pulse
- Fast Range: 2.44 seconds to 8.5ms per pulse
- Pause control via front panel button
- Gate/trigger input for pause with 2.5V threshold
- CLK LED indicates current clock rate
- PAUSE LED indicates play/pause state
- Clock output range 0V to 5V
- Rate CV input range 0V to 5V
- 2HP Eurorack format
Controls & Jacks (8)
- PAUSE — Button that stops or starts the clock based on its currently selected play/pause state.
- RATE CV — Control voltage input for rate modulation (0V–5V).
- OUT — Clock output (0V–5V).
- PAUSE — Gate/trigger input for pause control. Clock stops or starts on rising edge (threshold 2.5V).
- RATE — Controls the rate of the clock. Far left is slowest, far right is fastest based on selected range.
- RANGE — Toggle that switches between two rate ranges. Left selects slow range (10s–34ms), right selects fast range (2.44s–8.5ms).
- CLK LED — LED that flashes to indicate the current clock rate
- PAUSE LED — LED that indicates play/pause state — lit means paused, unlit means running
How-To Guides
- Basic Master Clock Setup
- External CV Tempo Modulation
- Gate-Triggered Clock Pause for Live Performance
- Audio Rate Clock as Oscillator
- Glacial Slow Clock for Ambient Generative Patches
- Manual Start-Stop Performance Control
- Master Clock for Polyrhythmic Patches
- Tempo Ramp with Envelope CV
Explore the interactive Clk panel on BleepDex — tap any control to learn what it does.
