Doepfer A-171-4 – Quad VC Slew Limiter

The Doepfer A-171-4 is a versatile quad VC‑slew limiter offering four independent channels for smoothing and shaping CV transitions in Eurorack systems. Each channel features:

• Manual Rise/Fall controls

• CV inputs for external modulation (LFOs, envelopes, etc.)

• Gate output that fires when the output crosses threshold

This allows simultaneous portamento across multiple VCOs, smooth envelope-like contours, and layered modulation patterns—all in real time. Ideal for performers and sound designers who want multidimensional, organic movement in their modular patches.