Best Filter Modules Under $200 2026

Alright, so you're diving into modular and want some filtering action without emptying your bank account? Totally get it. Good filters are the heart of a lot of sounds - that creamy low-pass for pads, a resonant high-pass for percussive stabs, or a gnarly bandpass for screaming leads. We're rounding up the best filter modules you can snag for under $200; let's get into it.

Last updated: April 11, 2026

The best filter modules in 2026 are ADDAC 607 Crossover (top pick), Doepfer A-121d for tighter budgets, and Behringer Multi Filter/Resonator 1047 for pros — selected from 15 options across 7 brands, priced $49–$196, ranked by brand, price and popularity.
ADDAC 607 Crossover - Professional Music Instrument Photo
#1

ADDAC 607 Crossover

Subtractive Synthesis Audio Processing Frequency Control
Key Feature:
The ADDAC 607 Crossover is a surprisingly versatile little module for refining your sound. It's perfect for sound designers and experimental musicians wanting precise band separation and shaping without a huge commitment. The clean filter character and compact size make it a great addition to any Eurorack system.
PROS
  • • Excellent Sallen-Key filter provides a clean, musical tone.
  • • Flexible crossover frequencies allow for precise frequency shaping.
  • • Compact 6HP footprint maximizes valuable rack space.
  • • Individual band volume controls offer nuanced tonal sculpting.
CONS
  • • 6HP is quite cramped; patching can be challenging in tight racks.
  • • Limited crossover frequencies might restrict advanced processing needs.
  • • Analog design means potential for drift, requiring occasional calibration.
3.1/5 AudioFu Score
Specs:
6/10
Detail:
6/10
Value:
9/10
Doepfer A-121d - Professional Music Instrument Photo
#2

Doepfer A-121d

Tonal Character Classic Synthesis Sound Shaping
Key Feature:
The A-121d is a workhorse filter module for Eurorack systems. Its dual filter design and delta control make it ideal for creating evolving textures and complex tones – a great choice for experimental sound designers and those seeking classic, resonant filter character. It's a fantastic value and a solid foundation for any modular setup.
PROS
  • • Dual filters offer incredible flexibility for complex sound design.
  • • Delta control provides unique and evolving timbral shifts.
  • • Solid Doepfer build quality ensures long-term reliability.
  • • Integrated mixer simplifies routing and signal management.
CONS
  • • 8HP footprint can be limiting in smaller Eurorack cases.
  • • Filter resonance can get quite aggressive, requiring careful control.
  • • Limited filter modes compared to some more modern designs.
3.0/5 AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
8/10
Behringer Multi Filter/Resonator 1047 - Professional Music Instrument Photo
#3

Behringer Multi Filter/Resonator 1047

Tonal Character Audio Processing Classic Synthesis
Key Feature:
This Behringer 1047 is a shockingly capable filter module for the money. It delivers a genuinely aggressive resonance and a surprising range of tones, making it perfect for experimental sound design and adding grit to techno or industrial tracks – especially for those just getting into Eurorack.
PROS
  • • Excellent resonance character, truly usable for screaming sounds
  • • Surprisingly robust build quality for the price point
  • • Four distinct filter modes offer tonal versatility
  • • CV inputs allow for dynamic, expressive filter sweeps
CONS
  • • Plastic knobs feel cheap and lack precise control
  • • Limited HP width restricts integration in smaller racks
  • • Not a substitute for a high-end Moog or Buchla filter
3.0/5 AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
9/10
Doepfer A-108 - Professional Music Instrument Photo
#4

Doepfer A-108

Sound Shaping Audio Processing Frequency Control
Key Feature:
The A-108 is a fantastic entry point into classic Moog-style filtering within a modular environment. It's a workhorse module, delivering that warm, creamy character ideal for pads, basses, and evolving textures – perfect for anyone looking to add a serious filter voice to their modular setup without a massive investment.
PROS
  • • Classic Moog ladder filter topology delivers warm, resonant tones
  • • Multiple slope options (6, 12, 24, 48dB) offer tonal flexibility
  • • Robust build quality characteristic of Doepfer's meticulous engineering
  • • Excellent value for a filter module of this quality and character
CONS
  • • Limited output stages restrict routing options slightly
  • • Transistor ladder filters can be sensitive to component aging
  • • Requires Eurorack format modular system for integration
3.0/5 AudioFu Score
Specs:
5/10
Detail:
10/10
Value:
8/10
Doepfer A-121d VE - Professional Music Instrument Photo
#5

Doepfer A-121d VE

Tonal Character Frequency Control Classic Synthesis
Key Feature:
The A-121d VE is a solid, workhorse filter module that nails that classic Moog-esque vibe. It's a great entry point into more complex filtering, especially for those wanting that vintage warmth and character without a ton of bells and whistles. Perfect for sound designers and experimental musicians looking for a reliable, space-saving filter pair.
PROS
  • • Excellent resonance character, classic Moog-inspired sound.
  • • Dual filter design allows for complex, evolving textures.
  • • Compact 8HP footprint maximizes modular space efficiency.
  • • Well-built, sturdy construction characteristic of Doepfer quality.
CONS
  • • Limited filter modes compared to more modern, complex filter designs.
  • • Normalization can be confusing for beginners to modular synthesis.
  • • Input level controls lack fine-grained adjustment for subtle shaping.
3.0/5 AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
8/10
Behringer Swords - Professional Music Instrument Photo
#6

Behringer Swords

Classic Synthesis Frequency Control Sound Shaping
Key Feature:
The Swords is a seriously impressive filter module for the price. It's a fantastic entry point into complex filter design, letting you create everything from subtle warmth to gnarly, distorted textures. Ideal for experimental musicians and those wanting a powerful, versatile filter without a premium-priced investment.
PROS
  • • Dual filters offer immense sonic sculpting possibilities.
  • • Infinitely variable modes provide surprisingly nuanced filter character.
  • • Flexible routing options allow for complex signal chains.
  • • CV inputs offer deep modulation control for expressive sound design.
CONS
  • • Plastic construction feels less robust than higher-end modules.
  • • 18HP footprint can be restrictive in smaller Eurorack cases.
  • • Drive/wavefolder can get harsh quickly without careful attenuation.
2.9/5 AudioFu Score
Specs:
6/10
Detail:
6/10
Value:
9/10
Endorphin.es Squawk Dirty To Me Silver - Professional Music Instrument Photo
#7

Endorphin.es Squawk Dirty To Me Silver

Audio Processing Classic Synthesis Sound Shaping
Key Feature:
The Squawk Dirty To Me is a fantastic character module for Eurorack. It’s a surprisingly versatile stereo filter with a real edge – perfect for sound design, experimental music, or adding grit to more conventional patches. This is a great option for anyone wanting a unique sonic signature without needing to commit to a full modular system.
PROS
  • • Exceptional filter character, uniquely aggressive and musical.
  • • Integrated VCA streamlines patching and sound shaping.
  • • Meta-CV scanning provides evolving, dynamic filter textures.
  • • Compact 6U panel saves valuable rack space.
CONS
  • • Limited filter type control compared to a full Grand Terminal.
  • • 120mA draw can be significant for power-constrained racks.
  • • Serial HP filter might be too aggressive for subtle filtering.
2.9/5 AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
8/10
Doepfer A-120 Vintage Edition - Professional Music Instrument Photo
#8

Doepfer A-120 Vintage Edition

Classic Synthesis Frequency Control Tonal Character
Key Feature:
This A-120 VCF1 is a solid choice for anyone wanting that classic Moog-style filter in their modular setup. It’s a straightforward, workhorse filter that nails the vintage vibe, and it’s a great starting point for exploring filter modulation – ideal for experimental sound design or recreating classic synth tones.
PROS
  • • Classic Moog filter emulation delivers a warm, resonant character.
  • • Robust construction with discrete transistors for reliable performance.
  • • Vintage edition offers a distinct sonic signature compared to later models.
  • • Compact size integrates easily into dense modular systems.
CONS
  • • Limited filter modes compared to more modern designs.
  • • Vintage components may exhibit slight inconsistencies in performance.
  • • The 'vintage' designation can imply slightly higher noise floor.
2.8/5 AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
9/10
Tiptop Audio Forbidden Planet Analog Filter - Professional Music Instrument Photo
#9

Tiptop Audio Forbidden Planet Analog Filter

Sound Shaping Frequency Control Tonal Character
Key Feature:
The Forbidden Planet nails the Synthacon’s character, offering a raw, vintage filter sound perfect for experimental sound design and gritty basses. Its compact size makes it easy to integrate into smaller modular rigs, but be prepared to dive in and really explore its possibilities – it’s not a plug-and-play experience.
PROS
  • • Authentic Steiner Parker Synthacon vibe delivers unique, resonant character
  • • Excellent self-oscillation capabilities for aggressive sound design
  • • Compact 8 TE module fits well in most Eurorack systems
  • • Flexible multi-mode operation opens creative sonic possibilities
CONS
  • • Limited filter modes compared to more complex filter modules
  • • Power draw could be a factor in power-constrained systems
  • • Steeper learning curve for mastering all operational nuances
2.8/5 AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
8/10
Behringer Surges - Professional Music Instrument Photo
#10

Behringer Surges

Subtractive Synthesis Classic Synthesis Audio Processing
Key Feature:
The Behringer Surges is a surprisingly capable filter module for the price, clearly inspired by Mutable Instruments' Ripples. Its sound is warm and musical, perfect for adding character to evolving textures or creating resonant sweeps – a real boon for experimental electronic music producers and those exploring modular synthesis on a budget.
PROS
  • • Excellent filter character, recalling classic Japanese synths
  • • Remarkable value, especially considering Ripples inspiration
  • • Flexible slope switch (12/24dB) offers tonal versatility
  • • FM input and self-oscillation expand sound design possibilities
CONS
  • • 8HP footprint can be limiting in smaller modular systems
  • • Analogue circuit might exhibit slight drift over extended use
  • • Gain control on one input could introduce unwanted noise at high levels
2.7/5 AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
9/10
Endorphin.es Squawk Dirty To Me - Professional Music Instrument Photo
#11

Endorphin.es Squawk Dirty To Me

Classic Synthesis Tonal Character Subtractive Synthesis
Key Feature:
The Squawk Dirty To Me is a seriously fun and creative filter module. It’s perfect for experimental sound design and adding unique movement to your patches, especially if you’re already familiar with the Grand Terminal’s sonic character. It's a great way to add some unique character without a massive commitment.
PROS
  • • Exceptional filter variety; Grand Terminal sounds in a compact module.
  • • Integrated VCA cleans up signal routing considerably.
  • • Meta-CV scanning introduces evolving, unpredictable textures.
  • • Serial high-pass effectively cleans up muddy low-end frequencies.
CONS
  • • 6HP is tight; space is at a premium in most racks.
  • • Limited modulation destinations beyond cutoff and resonance.
  • • Filter types, while diverse, might feel overwhelming for beginners.
2.7/5 AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
8/10
Erica Synths Black Multimode VCF - Professional Music Instrument Photo
#12

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
2.6/5 AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
8/10
Doepfer A-124-2 SE - Professional Music Instrument Photo
#13

Doepfer A-124-2 SE

Tonal Character Frequency Control Audio Processing
Key Feature:
The A-124-2 SE is a fantastic, compact filter for adding some gritty character to your modular system. It's a great entry point into Doepfer’s filter design philosophy, perfect for those seeking a classic, aggressive sound without a huge footprint or premium price tag – especially useful for techno, industrial, and experimental sound design.
PROS
  • • Excellent filter character – wasp-like aggression and warmth.
  • • Slim 4HP footprint maximizes space in tight Eurorack cases.
  • • Robust construction with Doepfer's signature quality components.
  • • Versatile multimode options offer a wide range of tonal possibilities.
CONS
  • • Limited resonance control compared to some higher-end filter modules.
  • • Attenuation on one CV input can feel restrictive for complex modulation.
  • • The SE designation doesn’t represent a massive sonic leap over the original A-124.
2.6/5 AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
9/10
Rides In The Storm SED - Professional Music Instrument Photo
#14

Rides In The Storm SED

Tonal Character Subtractive Synthesis Frequency Control
Key Feature:
The Rides In The Storm SED is a seriously useful little module. It's a great entry point for those exploring discrete filter design, and the built-in VCA and mixer make it surprisingly versatile for sound design and sequencing. Perfect for experimental electronic musicians and those wanting a compact, characterful filter in their rack.
PROS
  • • Discrete op-amp design yields a rich, organic filter tone.
  • • Integrated VCA and mixer streamline patching and signal flow.
  • • Compact 8HP footprint maximizes space in tight modular setups.
  • • Overdrive adds subtle grit and harmonic complexity when pushed.
CONS
  • • The 3-channel mixer's level controls lack individual panning.
  • • Limited resonance range might not satisfy extreme filter enthusiasts.
  • • 80mA current draw is relatively high for a module of this size.
2.5/5 AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
9/10
Doepfer A-124-2 - Professional Music Instrument Photo
#15

Doepfer A-124-2

Subtractive Synthesis Classic Synthesis Tonal Character
Key Feature:
The A-124-2 is a classic for a reason. It’s a fantastic, compact filter module, especially if you're chasing that gritty, aggressive Wasp sound. Perfect for techno, industrial, or anyone needing a focused, characterful filter in a small footprint.
PROS
  • • Tight, aggressive resonance characteristic ideal for acid basslines.
  • • Slimline format maximizes space in dense modular setups.
  • • Robust Doepfer build quality; feels solid and dependable.
  • • Versatile multimode options offer a wide range of sonic textures.
CONS
  • • Limited CV input attenuation range can be restrictive.
  • • 4HP width might feel cramped in some patching scenarios.
  • • The resonance can get quite harsh if not carefully controlled.
2.5/5 AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
9/10

How to Choose the Best Filter Modules

1

Resonance

This is key. A filter without usable resonance is just a tone shaper, not a filter. We're looking for that sweet spot where it self-oscillates, or at least screams convincingly.

2

Filter Type

Low-pass, high-pass, bandpass, notch - each has its place. We're assessing if the filter type is versatile enough for different sound design tasks, and if it delivers the characteristic tone you'd expect.

3

Slope/Order

Steeper slopes (higher order) mean more dramatic filtering. A 24dB/octave filter will have a much more pronounced effect than a 12dB/octave, and we're evaluating the sonic impact.

4

Drive/Distortion

Many filters benefit from a bit of drive to add warmth and grit. We're looking for modules that either have built-in drive or play well with external distortion sources.

5

Input/Output Level

A filter's headroom and signal level can make or break a patch. We're checking for noise floor and whether the module can handle hotter signals without clipping or getting muddy.

Buying Guide

At this price point, you're making trade-offs. Don't expect Moog-level build quality - the pots might be a little scratchy, and the case might be plastic. However, a lot of clever designers are squeezing incredible sound out of these budget modules. Focus on the core filter characteristics first, and don't sweat the minor cosmetic details. A little bit of external drive can often mask the limitations of a less-than-stellar filter design.

How This List Is Built

We don't play these instruments — we're a catalog, not a review desk, and we'd rather say so than pretend otherwise. This page ranks 15 filter modules from the Thomann catalogue, which is the largest single source of specification data in this category.

Position is computed, not curated. Four signals, in order of weight: how completely the manufacturer documents the instrument (number of published specifications), where it sits in the price range, how specific the model designation is — which filters out generic accessories — and whether a product image exists. The same inputs always produce the same order, so nothing here is shuffled to look fresh.

What this list is good for: narrowing a category down to a shortlist by spec and budget. What it isn't: a substitute for hearing an instrument. Before you buy, read hands-on reviews and, where you can, play it. Full methodology.

Frequently Asked Questions

Absolutely. The value proposition is insane right now. You're not getting the absolute best, but you're getting a lot of character and functionality for the money.
24dB/octave filters have a steeper slope, meaning a more aggressive cutoff. They also tend to have more resonance. 12dB/octave filters are gentler and often more subtle.
Some noise is inevitable with budget components. Try to minimize gain staging issues and check your power supply. Excessive noise might indicate a faulty module.
Definitely! A resonant low-pass filter is a classic bass sound. Just be mindful of the headroom and distortion - too much drive can make your bass sound muddy.
There are a few modules that attempt to emulate the Moog ladder filter, but don't expect a perfect clone. Look for modules with a similar resonant peak and a characteristic 'fat midrange honk'.

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