Laine Catena
Four-channel CV shaping and chaining utility
28 HP Eurorack module
Catena is a four-channel control voltage utility that chains together signal gain control and DC offsets for balancing and fine-tuning control signals. It feels like a Swiss Army knife for CV manipulation, offering everything from gentle modulation shaping to aggressive waveshaping and rectification, with a particularly satisfying normalled mixing architecture that encourages experimentation.
Features
- Four normalled channels with individual outputs
- Switchable ±5V/±10V voltage references
- External offset CV input affecting channels 2-4
- Zener soft clipping at ±10V
- Dual LED polarity indicators per channel
- Channel grouping jumper on PCB
- Signal doubler on channel 4
Controls & Jacks (25)
- CH 4— 3-way: Attenuate (L), Attenuvert (M), Full-Wave Rectification (R)
- CH 2— 3-way: Attenuate (L), Attenuvert (M), Lazy Slew (R)
- CH 1— Toggles voltage reference between ±5V and ±10V (latching)
- CH 4— Attenuator/attenuverter control for channel 1
- CH 2— Attenuator/attenuverter control for channel 2
- CH 3 In— Channel 3 input
- Slew CV— input cv
- CH 1 In— Channel 1 input
- CH 2 In— Channel 2 input
- CH 4 In— Channel 4 input (doubles gain in alt mode)
- Slew Range— Toggles slew response between tight and loose for CH 1 & 2 alt modes
- CH 4
- CH 2
- CH 1
- CH 1— Attenuator/attenuverter control for channel 3
- CH 3— Attenuator/attenuverter control for channel 4 (doubles input gain in alt mode)
- Offset— Adds VREF offset to CH 2-4, or controls external offset CV level
- CH 2 Out— Channel 2 output, normalled to CH 3
- CH 3 Out— Channel 3 output, normalled to CH 4
- CH 4 Out— Channel 4 output (final in chain)
- Offset CV— input cv
- CH 1 Out— Channel 1 output, normalled to CH 2
- CH 3— 3-way: Attenuate (L), Attenuvert (M), Half-Wave Rectification (R)
- CH 1— 3-way: Attenuate (L), Attenuvert (M), Percussive Slew (R)
- CH 3
How-To Guides
- Basic Attenuverter Patch
- Precision DC Offset Source
- Cascaded Signal Mixer
- External Offset Modulation
- Percussive Envelope Generator
- Waveshaping with Half-Wave Rectification
Explore the interactive Catena panel on BleepDex — tap any control to learn what it does.