Doepfer A-101-1v Vactrol Steiner Filter – Vintage Edition

The A-101-1v is the vintage-styled version of Doepfer’s character-rich Steiner filter, featuring vactrol-based modulation for smooth, expressive sound shaping. It offers simultaneous low pass, high pass, band pass, and notch outputs, each contributing to its gritty, analog voice. The vactrols impart a soft, natural response to modulation sources, making this filter ideal for musical movement and dynamic patches. With its retro aluminum faceplate, the A-101-1v adds a classic visual touch to any Eurorack system.

Key Features:

• Steiner-Parker-inspired multimode filter

• Vactrol-controlled modulation for fluid dynamics

• Simultaneous LP, HP, BP, and Notch outputs

• Gritty, resonant analog character

• Vintage-style aluminum front panel