Rodec Ministyler - Sherman Filterbank Module

The Rodec Ministyler takes the cult Sherman Filterbank sound and drops it straight into the Rodec 100 series format, giving you a raw, analogue stereo filter that can mangle, saturate and reshape your audio with serious attitude. From subtle movement and warmth to full-on sonic destruction, it is a performance-ready module that reacts to your signal and CV in real time.

Built around the original Sherman filter circuit, the Ministyler lets you sweep seamlessly between low-pass, band-pass and high-pass modes, flip between 12 dB and 24 dB slopes, and push the resonance into screaming self-oscillation. Add in powerful drive with up to +30 dB of gain, a dry/wet blend and audio-reactive modulation, and you have a compact stereo powerhouse that can transform drums, synths, bass, vocals and more.

Designed for use in the Rodec 500 to 100 series adapter or the Rodec ONE, the Ministyler is equally at home in the studio or on stage. Use it as a characterful mix-bus filter, a wild live performance tool or a creative sound design weapon that constantly evolves with your music.

Classic Sherman Filter Tone

At the core of the Ministyler is the original Sherman filter design, delivering the same unruly character that made the Filterbank a legend. You can continuously morph between low-pass, band-pass and high-pass responses, choose between 12 dB or 24 dB slopes, and drive the resonance into self-oscillation for piercing peaks or even playable tones. It is ideal for everything from smooth sweeps to brutal, tearing filter effects.

Audio-Reactive Modulation

The Ministyler turns your incoming audio into a modulation source, with two internal audio modulators that can target filter frequency and type with positive or negative depth. This lets your signal effectively modulate itself, creating evolving, rhythmic movements that lock to the dynamics of your track. From pulsing sidechain-style sweeps to chaotic, glitchy shifts, the filter becomes a living, breathing part of your mix.

CV Control for Modular Integration

With dedicated CV inputs for filter frequency and type, the Ministyler drops straight into a modular workflow. Sequence filter modes, automate sweeps, or patch complex modulation from LFOs, envelopes and step sequencers. Combined with its internal audio modulation and FM capabilities, it becomes a deeply expressive tool for experimental sound design and tightly synced rhythmic effects.

Drive, Blend and Gain on Tap

A powerful drive stage with up to +30 dB of gain and a dry/wet blend control lets you dial in exactly how hard you want to hit the filter. Add a touch of analogue warmth, push into gritty saturation, or go all the way into aggressive distortion, then balance it perfectly against your clean signal. This makes the Ministyler just as effective for subtle tone shaping as it is for all-out mayhem.

• Original Sherman Filter Circuit - The Ministyler uses the classic Sherman design, giving you the same wild, musical and sometimes unruly character that made the Filterbank a studio favourite. It is perfect for producers who want a filter that adds personality rather than staying polite.
• Continuously Variable Filter Type - Sweep smoothly from low-pass to band-pass to high-pass with a single control, rather than being locked to fixed modes. This continuous morphing opens up expressive transitions, evolving textures and unique in-between tones you cannot get from standard switched filters.
• Audio-Reactive and CV Modulation - Two internal audio modulators plus CV inputs for frequency and type let you drive the filter from your signal or your modular system. This makes it easy to create dynamic, tempo-aware movement that responds to your playing, your beats and your patch.
• Stereo Drive with Dry/Wet Blend - Up to +30 dB of gain and a dedicated blend control give you precise control over how much processed signal you add. You can keep your transients intact while adding weight, grit and movement, making the Ministyler equally useful on individual tracks and full stereo busses.

Format & Compatibility

• Module Type: Stereo 100-series module
• Designed for use in: Rodec 500 to 100 series adapter
• Designed for use in: Rodec ONE
• Dimensions: 75.85 mm x 80.9 mm (16HP high)

Main Controls & Features

• Gain Makeup: Up to +30 dB
• Dry/Wet Blend: Continuous mix between clean and processed signal

Filter Section

• Circuit: Original Sherman filter design
• Slope: Switchable 12 dB/octave or 24 dB/octave
• Frequency: Manual knob control (CV controllable)
• Resonance: Manual knob control (capable of self-oscillation)
• Filter Type: Manual knob control, continuously variable from Low Pass to Band Pass to High Pass (CV controllable)

Modulation

• CV Control Inputs: Filter Frequency (±5 V)
• CV Control Inputs: Filter Type (±5 V)
• Internal Audio Modulators: 2
• Internal Modulator Function: Modulate filter frequency and type (selectable positive or negative modulation)
• Internal Modulator Source: Incoming audio signal
• FM Modulation Function: Filter frequency modulation
• FM Modulation Source: Incoming audio signal