Best Erica Synths Filter Modules 2026

Okay, so you're diving into the Erica Synths filter world? Smart move. They've carved out a serious niche for themselves, not by chasing trends, but by delivering raw, characterful filtering that's rooted in classic Moog designs, but with a distinctly Baltic twist. Forget polite, textbook filters; Erica's modules are about grit, warmth, and that undeniable 'something' that makes a sound truly memorable.

Last updated: May 13, 2026 • Next update: May 20, 2026

Erica Synths Graphic Resonant FB - Professional Music Instrument Photo
#1

Erica Synths Graphic Resonant FB

Audio Processing Subtractive Synthesis Frequency Control
Key Feature:
This Erica Synths Graphic Resonant FB is a beast for sound designers and experimental musicians who crave complex, evolving textures. It’s a fantastic way to inject a huge amount of character and movement into your modular system, pushing beyond the capabilities of standard filters. If you're into evolving soundscapes and intricate modulation, this is a powerful tool to explore.
PROS
  • • Exceptional resonant character creates uniquely sculpted, evolving sounds.
  • • Digital control offers precise filter shaping beyond analog limitations.
  • • Versatile modes expand sonic possibilities, from subtle warmth to aggressive filtering.
  • • Preset morphing and random functions foster experimental sound design.
CONS
  • • Steep learning curve; mastering the complex controls requires dedication.
  • • Size (standard Eurorack format) can be limiting in smaller modular setups.
  • • Audio input level control feels a bit rudimentary compared to other modules.
4.7/5 Expert Rating
Sound:
8/10
Build:
8/10
Value:
8/10
Erica Synths Black High-Pass Filter - Professional Music Instrument Photo
#2

Erica Synths Black High-Pass Filter

Tonal Character Audio Processing Subtractive Synthesis
Key Feature:
This Erica Synths Black High-Pass Filter is a surprisingly potent little module. It's got a really nice, thick high-pass sound, and the resonance circuit is usable for some wild effects. Perfect for sound designers and experimental electronic musicians wanting a focused, characterful filter in a small package.
PROS
  • • Excellent high-pass character with a pronounced analog warmth
  • • Resonance circuit delivers usable self-oscillation for unique textures
  • • Compact 10HP footprint maximizes modular space efficiency
  • • Overdrive adds grit and harmonic complexity when needed
CONS
  • • Limited filter type – only high-pass functionality available
  • • 25mA current draw can be significant in power-constrained systems
  • • Lack of a dedicated attenuator for input level can be slightly unwieldy
4.3/5 Expert Rating
Sound:
8/10
Build:
8/10
Value:
9/10
Erica Synths Black Multimode VCF - Professional Music Instrument Photo
#3

Erica Synths Black Multimode VCF

Sound Shaping Subtractive Synthesis Classic Synthesis
Key Feature:
The Erica Synths Black is a fantastic, character-rich multimode filter that's a real workhorse. It's a great entry point into more complex filtering, especially if you’re chasing that vintage Moog vibe, and its small size is a huge bonus for Eurorack users. Perfect for sound design, experimental music, and adding warmth to synths.
PROS
  • • Gorgeous, warm filter character with genuine germanium overdrive tone
  • • Excellent resonance sweep provides screaming, musical feedback possibilities
  • • Compact 10HP footprint makes it ideal for dense modular setups
  • • Well-implemented attenuators offer precise CV control and shaping
CONS
  • • The lowpass mode can be a bit muddy with extreme resonance
  • • Limited filter modes compared to some pricier, more complex options
  • • Depth (35mm) might be restrictive in shallow Eurorack cases
4.8/5 Expert Rating
Sound:
7/10
Build:
8/10
Value:
7/10
Erica Synths Pico LPG - Professional Music Instrument Photo
#4

Erica Synths Pico LPG

Frequency Control Audio Processing Sound Shaping
Key Feature:
The Pico LPG is a brilliant little module for adding some classic, organic low-pass gate goodness to your modular system. Its compact size makes it perfect for smaller racks or adding a unique flavor to larger setups, and that Vactrol really delivers a smooth, almost vocal character. It's ideal for experimental sound design and those wanting a classic analog feel in a tiny package.
PROS
  • • Vactrol-based filter offers a uniquely warm, evolving tone.
  • • Extremely compact 3HP footprint maximizes modular space.
  • • Flexible VCA/VCF mode expands creative routing possibilities.
  • • Decay and offset controls provide nuanced envelope shaping.
CONS
  • • 3HP size limits routing and connectivity options.
  • • Low power draw can be a limitation for complex systems.
  • • The Vactrol’s aging can introduce noise or drift over time.
4.5/5 Expert Rating
Sound:
8/10
Build:
7/10
Value:
8/10
Erica Synths Pico VCF1 - Professional Music Instrument Photo
#5

Erica Synths Pico VCF1

Classic Synthesis Sound Shaping Frequency Control
Key Feature:
The Pico VCF1 is a fantastic little module for anyone wanting that classic, gritty Polivoks filter sound without the bulk. It's a real workhorse for experimental sound design and adding some edge to your modular patching, especially if you're into darker, industrial textures.
PROS
  • • Authentic Polivoks filter character, surprisingly powerful for its size
  • • Russian NOS op-amps deliver a unique, vintage-flavored tone
  • • Self-oscillation is clean and usable for wild sound design
  • • Compact 3TE module saves precious space in modular setups
CONS
  • • Limited filter modes compared to full-sized counterparts
  • • Power draw is a bit higher than some other Pico modules
  • • Attenuator could benefit from finer resolution for subtle CV control
4.8/5 Expert Rating
Sound:
8/10
Build:
8/10
Value:
8/10
Erica Synths Black Polivoks VCF V2 - Professional Music Instrument Photo
#6

Erica Synths Black Polivoks VCF V2

Frequency Control Tonal Character Audio Processing
Key Feature:
This Erica Synths Polivoks VCF V2 is a fantastic little module for recreating that gritty, Russian synth vibe. It’s a no-frills design, but it nails the aggressive character of the original Polivoks filter, perfect for industrial, experimental, or anyone craving a raw, analog edge in their modular patch. A great choice for those seeking a specific, iconic sound without a huge commitment.
PROS
  • • Authentic Polivoks character with original K140UD12 chips
  • • BP mode delivers aggressive, resonant sweeps and textures
  • • Compact 10HP footprint ideal for space-constrained modular systems
  • • Simple, direct controls allow for immediate sonic exploration
CONS
  • • Limited filter modes compared to more versatile options
  • • Can be quite aggressive and noisy at higher resonance settings
  • • No attenuators on CV inputs; signal levels require careful management
4.5/5 Expert Rating
Sound:
9/10
Build:
7/10
Value:
9/10
Erica Synths Black 3109 VCF/VCA - Professional Music Instrument Photo
#7

Erica Synths Black 3109 VCF/VCA

Classic Synthesis Frequency Control Sound Shaping
Key Feature:
The Black 3109 is a seriously punchy filter – it nails that classic Moog vibe. It’s a great entry point to Erica Synths' Black series and a fantastic choice for anyone wanting that aggressive, resonant low-pass sound without needing a massive patch bay. Ideal for techno, industrial, or anyone wanting a raw, gritty edge.
PROS
  • • Aggressive, Moog-inspired filter character delivers classic analog warmth.
  • • Level compensation avoids volume drops at high resonance, a genuinely useful feature.
  • • Built-in VCA simplifies patching and offers a convenient all-in-one solution.
  • • Compact 10U width optimizes space in dense modular setups.
CONS
  • • Limited filter modes compared to more complex, higher-priced offerings.
  • • The attenuators could benefit from finer resolution for precise CV control.
  • • While versatile, its single filter type restricts broader sonic exploration.
4.9/5 Expert Rating
Sound:
8/10
Build:
9/10
Value:
9/10
Erica Synths Drum Stereo DJ VCF - Professional Music Instrument Photo
#8

Erica Synths Drum Stereo DJ VCF

Classic Synthesis Subtractive Synthesis Frequency Control
Key Feature:
This Erica Synths module is a real character piece. The crossfading between low and high pass is incredibly musical and useful for creating evolving textures and rhythmic filtering. It’s perfect for experimental sound design, glitchy percussion, and anyone wanting a unique filter voice in their modular setup.
PROS
  • • Unique crossfade creates evolving, dynamic filter sweeps.
  • • Stereo operation expands sonic possibilities for textures.
  • • Solid build quality; Erica Synths consistently reliable.
  • • Resonance control adds character and screaming potential.
CONS
  • • 8HP footprint can be restrictive in smaller modular systems.
  • • Limited filter modes compared to some more complex offerings.
  • • Power draw is moderate; consider PSU capacity.
4.4/5 Expert Rating
Sound:
7/10
Build:
7/10
Value:
7/10
Erica Synths Black DJ VCF - Professional Music Instrument Photo
#9

Erica Synths Black DJ VCF

Tonal Character Subtractive Synthesis Sound Shaping
Key Feature:
The Black DJ VCF is a fantastic, characterful filter module for Eurorack enthusiasts. Its crossfade design allows for incredibly expressive tonal shifts, making it ideal for sound design and experimental music. It’s a great option for those wanting a unique and flexible filter without breaking the bank.
PROS
  • • Smooth crossfade offers unique tonal sculpting possibilities.
  • • Robust build quality; Erica Synths are known for reliability.
  • • Excellent resonance character provides screaming, musical overtones.
  • • Compact 10HP footprint maximizes modular space efficiency.
CONS
  • • Limited input headroom; can easily clip with hot signals.
  • • Steep learning curve for mastering the crossfade nuances.
  • • Somewhat basic attenuators lack fine-grained control.
4.6/5 Expert Rating
Sound:
7/10
Build:
7/10
Value:
8/10
Erica Synths Black LPG - Professional Music Instrument Photo
#10

Erica Synths Black LPG

Audio Processing Subtractive Synthesis Tonal Character
Key Feature:
The Black LPG is a clever little module that gives you a lot of bang for your buck. It’s perfect for sound designers and experimental musicians who want a versatile filter/VCA in a small space—the resonance overdrive is a real highlight and adds a lot of character. It’s a great starting point for modular exploration, too.
PROS
  • • Unique filter/VCA hybrid design offers incredible sonic flexibility
  • • Resonance overdrive adds a satisfying grit and character
  • • Compact 10HP footprint maximizes space in modular setups
  • • Excellent value proposition for the feature set offered
CONS
  • • Limited modulation destinations compared to larger filter modules
  • • Offset control can be a bit finicky to dial in precisely
  • • May not offer the pristine clarity of dedicated, high-end filters
4.3/5 Expert Rating
Sound:
7/10
Build:
8/10
Value:
7/10

How to Choose the Best Filter Modules

1

Heritage & Design Philosophy

Erica's filters are heavily influenced by Moog's classic ladder filters, but they've added their own subtle refinements and often push the saturation and resonance beyond what you'd find in vintage circuits. This gives them a unique character-less a clone, more an inspired evolution.

2

Resonance Behavior

This is where Erica really shines. Their resonance isn't just a volume boost; it's a complex, harmonically rich sweep. It can go from a warm, buttery sustain to a screaming, self-oscillating chaos, and that transition is musical, not just a linear increase in dB. Perfect for evolving pads or aggressive basslines.

3

Drive & Saturation

Most Erica filters offer built-in drive stages. It's not just distortion; it's saturation that adds warmth, harmonics, and a perceived loudness without completely muddying the low end. It's a subtle but critical ingredient for cutting through a mix, especially in a band setting.

4

Build Quality & Component Selection

The modules are generally well-built, with sturdy jacks and robust knobs. They aren't boutique-level pristine, but they feel solid and reliable for gigging. The components are chosen for their sonic characteristics, prioritizing character over absolute precision - a common theme with Erica.

5

Modular Integration

Erica Synths designs with modularity in mind. Their filters play exceptionally well with other Eurorack modules, offering a wide range of modulation possibilities. The input and output impedances are well-considered, minimizing signal loss and unwanted interactions.

Buying Guide

Erica filters aren't the cheapest options out there, but you're paying for that distinct tonal character. If you're after pristine, surgical filtering, look elsewhere. However, if you want a filter that adds warmth, grit, and a whole lot of personality to your sounds, Erica is tough to beat. Watch out for the older models; some have slightly less robust pots than the newer revisions.

Our Methodology

We don't just look at specs here. We've spent months patching these filters into everything from drum machines to modular leads, running them through recording chains, and even taking them to a few noisy band rehearsals. It's about hearing how they actually sound in a real-world context, and how they interact with other gear - not just how they look on paper.

Frequently Asked Questions

No. They're inspired by Moog, absolutely, but Erica's engineers have made significant modifications, particularly to the resonance and drive circuits, to create their own unique sonic signature.
Absolutely. The line-level output means you'll need a line-instrument interface, but the results can be incredible-everything from subtle warmth to full-on fuzz. Just be mindful of headroom.
The SMR4 is a state-variable filter, offering a more flexible, multi-mode sound. The BPM4 is a classic 4-pole Moog-style ladder filter. Choose the SMR4 if you want versatility, the BPM4 if you want that raw, aggressive Moog vibe.
Like most analog filters with aggressive resonance, they can exhibit some self-noise, especially when pushed hard. It's usually part of the charm, but if you're after absolute silence, it's something to consider.
Not necessarily. They sound great static, but modulation - LFOs, envelopes, sequencers - really unlocks their potential, allowing you to create evolving textures and dynamic soundscapes.

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