Check the listing for details. ADSR Envelope Generator in Dark Mode for Eurorack Modular by Stoel Music Systems. Condition: New. Listed at 97.00 USD. The Stoel Music Systems ADSR in Dark Mode provides a classic synthesizer envelope. Attack, decay, sustain, and release are all controlled with knobs. The ADSR envelope output is provided in both normal and inverted forms. The manual trigger button fires off the ADSR without a gate signal present, which is excellent for playing sounds live or sorting out complicated patches. All Stoel Music Systems modules feature aluminum front panels with a durable high-gloss white finish. For a crisp appearance and exceptional durability, the front panel markings are digitally printed at high resolution with UV-cured ink. Mounting holes are plated to significantly reduce screw rash. The power connection features polarity protection to prevent accidental damage to the module if it is connected backward. Each module includes a 12” long 10-pin to 16-pin ribbon cable compatible with the Eurorack standard, M3 mounting screws, and a complimentary sticker.