Morphor Envelope – Dual ADSR — a two-channel analogue ADSR envelope generator in a 6HP Eurorack format. The module packs two fully independent ADSR circuits onto a single narrow panel, letting one unit drive a VCA and a filter cutoff at the same time instead of taking up two slots in the case. The analogue circuitry reacts instantly to a gate signal, and rear-panel range switches let you stretch envelope duration from single milliseconds to multi-minute swells. Gate and trigger inputs accept voltages from 2.5V to 10V, so the module pairs cleanly with most sequencers and CV/gate keyboards.
Two ADSR channels, no rack-space penalty
Panel space is scarce in compact systems. Dual ADSR fits two complete envelope circuits into 6HP, so a single module covers amplitude shaping through a VCA and cutoff modulation on a filter at once. Each channel keeps its own attack, decay, sustain and release knobs plus a full set of inputs and outputs, so neither circuit is a compromise built to share one envelope across two jobs.
Range switching from percussive hits to drones
Rear switches set each channel independently to one of three ranges: Short (5 ms to 30 s), Med (25 ms to 60 s) or Long (60 ms to 200 s). That spread covers tight percussive envelopes for hit-based synthesis as well as the slow builds typical of drones and ambient work. An inverted output (-5V to 0V) adds inverse-phase control without patching in a separate inverter.
KEY FEATURES
- Two fully independent ADSR channels in a single 6HP module
- 100% analogue signal path
- Separate attack, decay, sustain and release knobs per channel
- Gate and re-trigger inputs on each channel
- Standard 0-5V output plus an inverted -5-0V output
- Rear-panel switchable envelope length ranges: Short, Med, Long
- Anodized aluminium front panel
TECHNICAL SPECIFICATIONS
- Width: 6 HP
- Height: 3U
- Module depth: 40 mm
- Panel dimensions: 128.5 x 30.3 x 40 mm
- Current draw: +12V 32 mA, -12V 32 mA, +5V 0 mA
- Short range: 5 ms to 30 s
- Med range: 25 ms to 60 s
- Long range: 60 ms to 200 s (3.3 min)
- Gate/trigger control voltage: 2.5 to 10V
- Envelope output: 0-5V, inverted output: -5-0V


