Best Filter Modules for Beginner 2026
So, you're diving into modular synths? Awesome! Filters are where the real magic happens - that's where you shape the character of your sounds, going from pristine to gritty and everything in between. But wading into filter modules as a beginner can feel overwhelming. Let's cut through the noise and look at some options that won't leave you lost in a sea of resonance and parallel filtering.
Last updated: April 11, 2026
⚡ The best filter modules in 2026 are Behringer Surges (top pick), Behringer Multi Filter/Resonator 1047 for tighter budgets, and Behringer 904A VC Low Pass Filter for pros — selected from 15 options across 4 brands, priced $31–$126, ranked by brand, price and popularity.
#1
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2.7/5
AudioFu Score
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6/10
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5/10
Value:
9/10
Behringer Surges
by
Behringer
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
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2.7/5
AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
9/10
Art. 603379
$50
#2
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3.0/5
AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
9/10
Behringer Multi Filter/Resonator 1047
by
Behringer
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
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3.0/5
AudioFu Score
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6/10
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5/10
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9/10
Art. 508282
$58
#3
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1.8/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
10/10
Behringer 904A VC Low Pass Filter
by
Behringer
Subtractive Synthesis
Tonal Character
Sound Shaping
Key Feature:
This Behringer 904A nails that classic Moog ladder filter vibe, offering a surprisingly rich and expressive sound for the price. It's an absolute steal for experimental electronic musicians, modular beginners, or anyone wanting a seriously characterful low-pass filter without emptying their wallet. The resonance is particularly fun to play with.
PROS
- • Classic Moog-inspired tone at a fraction of the cost
- • Versatile resonance sweeps create pronounced, musical filtering
- • Three frequency ranges offer broad sonic sculpting possibilities
- • Compact 8HP footprint maximizes space in tight Eurorack setups
CONS
- • Plastic construction feels less robust than higher-end filter modules
- • Limited input headroom can cause distortion with strong signals
- • CV inputs lack fine-tuning control for precise filter modulation
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1.8/5
AudioFu Score
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6/10
Detail:
3/10
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10/10
Art. 490741
$32
#4
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1.7/5
AudioFu Score
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6/10
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3/10
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9/10
Behringer 121 Dual VCF
by
Behringer
Tonal Character
Frequency Control
Audio Processing
Key Feature:
This Behringer 121 Dual VCF is a seriously cool way to get that vintage inSystem vibe in your modular system. It's a fantastic value for anyone wanting a warm, characterful filter sound, especially if you’re into experimental sound design or recreating classic synth tones – it's a real workhorse for the budget-conscious modular enthusiast.
PROS
- • Authentic inSystem 100Min recreation delivers a classic, warm filter tone
- • Dual filter design enables complex, evolving soundscapes and parallel processing
- • Flexible 3-mode HP filter adds significant tonal shaping options
- • Extensive CV inputs and attenuators allow for deep modulation possibilities
CONS
- • Plastic housing feels noticeably less robust than higher-end Eurorack modules
- • Limited HP modes compared to more versatile filter designs
- • 40mA current draw might stress power supplies in smaller systems
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1.7/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 489405
$48
#5
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2.1/5
AudioFu Score
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6/10
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3/10
Value:
9/10
Behringer Filtamp Module 1006
by
Behringer
Tonal Character
Subtractive Synthesis
Audio Processing
Key Feature:
The Filtamp 1006 is a surprisingly capable little module. It delivers a warm, classic filter tone and the built-in VCA makes it a complete sound source. This is a fantastic entry point for beginners exploring modular synthesis, or a budget-friendly utility for experienced users.
PROS
- • Excellent 24dB filter character, reminiscent of classic Moog designs
- • Integrated VCA provides a complete voice-like functionality
- • Affordable price point opens modular synthesis to more users
- • Compact 16HP footprint maximizes space in Eurorack systems
CONS
- • Plastic construction feels less robust than higher-end modules
- • Limited filter modes restrict sonic versatility compared to pricier options
- • Attenuators on CV inputs could benefit from finer resolution
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2.1/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 501739
$65
#6
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1.6/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Behringer Wasp VCF
by
Behringer
Sound Shaping
Audio Processing
Classic Synthesis
Key Feature:
This Wasp VCF is a seriously fun little module. It captures a surprising amount of the original Wasp Deluxe's character, making it perfect for those wanting that classic, gritty 80s synth vibe without a massive investment. It's a great entry point into analog filtering for beginners, or a fun addition for experienced modular users.
PROS
- • Classic Wasp filter sound at a fraction of the original's cost
- • Surprisingly musical resonance, capable of subtle warmth or aggressive sweeps
- • Multiple filter modes offer decent versatility for a single module
- • Compact 8HP footprint makes it ideal for space-constrained racks
CONS
- • Plastic housing feels a bit flimsy compared to higher-end filter modules
- • Limited CV input attenuation range can be restrictive in modulation setups
- • The bandpass output is noticeably quieter than the low/high-pass
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1.6/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 615088
$54
#7
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1.9/5
AudioFu Score
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6/10
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3/10
Value:
9/10
Behringer 923 Filters
by
Behringer
Sound Shaping
Audio Processing
Subtractive Synthesis
Key Feature:
These Behringer 923 Filters are a surprisingly capable and affordable way to add classic Moog-style filtering to your modular rig. They're perfect for experimental sound designers, ambient musicians, or anyone wanting that warm, vintage filter tone without spending a fortune – just be mindful of the resonance's quirks.
PROS
- • Warm, Moog-inspired filter character delivers classic analog tones
- • Dual filter design allows for complex stereo effects and processing
- • Compact 8HP footprint maximizes space in Eurorack systems
- • Noise generator provides useful textures for sound design and experimentation
CONS
- • Plastic housing feels less robust than higher-end filter modules
- • Limited CV modulation options restrict advanced parameter control
- • Filter resonance can get a bit unruly at higher settings
⭐
1.9/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 486874
$70
#8
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1.7/5
AudioFu Score
Specs:
6/10
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2/10
Value:
9/10
Behringer 914 Fixed Filter Bank
by
Behringer
Subtractive Synthesis
Sound Shaping
Frequency Control
Key Feature:
The 914 is a seriously impressive piece of kit for the price. It delivers a unique, almost Moog-like vibe with its fixed filter bank, perfect for sound designers and experimental musicians looking to add texture and movement without diving deep into complex modulation. It’s a great entry point into filter banks, offering a lot of sonic potential in a small package.
PROS
- • Exceptional value for a 12-band filter bank.
- • Provides complex, resonant filter sweeps easily.
- • Parallel inputs/outputs offer flexible routing options.
- • Compact 28HP footprint maximizes modular space.
CONS
- • Fixed filter frequencies limit creative experimentation.
- • Plastic housing feels less robust than higher-end modules.
- • Limited CV control compared to more advanced filter designs.
⭐
1.7/5
AudioFu Score
Specs:
6/10
Detail:
2/10
Value:
9/10
Art. 490736
$65
#9
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2.9/5
AudioFu Score
Specs:
6/10
Detail:
6/10
Value:
9/10
Behringer Swords
by
Behringer
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.
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2.9/5
AudioFu Score
Specs:
6/10
Detail:
6/10
Value:
9/10
Art. 606391
$109
#10
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3.1/5
AudioFu Score
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6/10
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6/10
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9/10
ADDAC 607 Crossover
by
ADDAC
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
Art. 618345
$120
#11
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2.0/5
AudioFu Score
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6/10
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2/10
Value:
9/10
Doepfer A-106-5 SEM Filter Special Ed.
by
Doepfer
Subtractive Synthesis
Audio Processing
Classic Synthesis
Key Feature:
This A-106-5 SEM Filter Special Ed. is a fantastic way to inject that classic, creamy Sequential Circuits sound into your modular setup. It's a relatively compact module, perfect for those wanting a distinct vintage vibe without a huge commitment. Ideal for sound designers and synth enthusiasts craving that SEM warmth.
PROS
- • Classic Sequential Circuits SEM filter sound in a compact Eurorack module.
- • Cream-colored panel and black knobs offer a visually appealing, vintage aesthetic.
- • Provides a rich, resonant, and characterful tone ideal for basslines and pads.
- • Doepfer’s renowned build quality ensures reliability and long-term performance.
CONS
- • Limited filter modes compared to more complex multi-mode offerings.
- • 8HP footprint can be restrictive in smaller modular systems.
- • Requires careful power supply management due to its dual polarity draw.
⭐
2.0/5
AudioFu Score
Specs:
6/10
Detail:
2/10
Value:
9/10
Art. 383693
$94
#12
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2.1/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Doepfer A-124 Wasp Filter SE
by
Doepfer
Sound Shaping
Audio Processing
Subtractive Synthesis
Key Feature:
This little Doepfer Wasp Filter SE is a fantastic way to inject some serious attitude into your modular system. It’s got that classic Wasp edge, surprisingly versatile despite its size, and the build quality is solid for a module in this price range. Perfect for experimental sound design or adding grit to percussive elements.
PROS
- • Distinct Wasp character delivers aggressive, resonant filtering tones.
- • Black front panel with yellow caps offers a unique, eye-catching aesthetic.
- • Compact 8HP footprint makes it ideal for space-constrained modular setups.
- • Based on the inEDP Waspin circuit, providing a refined, modern implementation.
CONS
- • Limited multimode options compared to more complex filter modules.
- • Power draw of +30mA might be significant in systems with limited power.
- • The aggressive sound may not suit all musical styles or applications.
⭐
2.1/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 369708
$97
#13
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2.3/5
AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
9/10
Doepfer A-121-3
by
Doepfer
Frequency Control
Audio Processing
Classic Synthesis
Key Feature:
The A-121-3 is a workhorse filter – it delivers that classic, creamy Doepfer tone that’s instantly recognizable. It's a great entry point into modular filters, perfect for someone wanting a flexible, space-efficient, and affordable core sound-shaping tool. It won't replace a super-complex, modern filter, but it's a fantastic foundation.
PROS
- • Classic Doepfer sound: warm, resonant, and distinctly analog
- • Versatile multimode operation expands sonic possibilities significantly
- • Compact 4HP footprint maximizes space in tight Eurorack setups
- • Solid build quality with reliable Doepfer component selection
CONS
- • Limited modulation options compared to more modern filter designs
- • Input level control can be a bit sensitive and require tweaking
- • The resonance can self-oscillate easily at higher settings
⭐
2.3/5
AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
9/10
Art. 467570
$108
#14
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2.5/5
AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
9/10
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
Art. 530008
$116
#15
⭐
2.8/5
AudioFu Score
Specs:
6/10
Detail:
4/10
Value:
9/10
Doepfer A-120 Vintage Edition
by
Doepfer
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
Art. 383620
$127
How to Choose the Best Filter Modules
1
Playability
A complex filter with a steep learning curve is frustrating. Beginner-friendly modules have intuitive controls, clear response, and a forgiving sweet spot. You want to be making cool sounds quickly, not deciphering a manual.
2
Resonance Control
Resonance is key for that screaming, vowel-like tone. But too much, and it's just noise. A good beginner filter needs a well-defined resonance range that's controllable and musical, not just a runaway oscillator.
3
Filter Type
Lowpass is the workhorse, but bandpass and notch filters open up different sonic territories. A module with multiple filter types, or at least a versatile lowpass, will expand your palette without adding too much complexity.
4
Ease of Integration
Modular synths live by patching. A filter module needs proper input and output levels - no clipping or getting buried in the mix. Look for modules with clearly labeled connections and standard Eurorack voltages.
5
Noise & Stability
Cheap modules can introduce unwanted noise or drift out of tune. A clean, stable filter is crucial for a professional sound, especially when recording. Even subtle noise gets amplified in a modular setup.
Buying Guide
Don't chase the boutique modules just yet. There's a ton of value in the more affordable options, but be aware: corners get cut somewhere. Often it's in component quality - which translates to more noise or less dynamic range. A good starting point is a well-regarded clone of a classic Moog or Roland filter, as those designs are proven and offer a lot of tonal flexibility. Resist the urge to buy a massive multi-mode filter right away; master the basics first.
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
Lowpass cuts highs, highpass cuts lows - pretty straightforward. Bandpass lets a narrow range of frequencies through, and notch cuts a narrow range. Lowpass is the most common and easiest to grasp initially.
It depends on the sound you're after! But generally, if it starts self-oscillating uncontrollably or introduces excessive noise, you've gone too far. Listen carefully and find the sweet spot where it adds character without becoming a mess.
You can, but it's not as simple as a plugin. You'll need an audio interface with multiple outputs to send signals to the filter and then back into your DAW. It's more complex, but the sound is often richer and more analog.
Cleanliness and stability. Noise is much harder to fix in the mix than a slightly less complex filter design. Don't skimp on power supply quality either - a noisy power supply can ruin a good module.
It's when the filter's resonance gets so high that it starts to generate its own audio signal, independent of the input. It can sound cool and chaotic, but it's something to be aware of and control.
