Best Filter Modules Under $100 2026
Alright, so you're diving into modular and want filters, but your bank account's looking a little thin? Totally get it. Good filters are the heart of a lot of sounds - that grit, that warmth, that vowel-like resonance - and you don't need to drop a grand to get something usable. We've hunted down some solid filter modules under $100 that won't leave you wanting too badly.
Last updated: April 11, 2026
⚡ The best filter modules in 2026 are Behringer Multi Filter/Resonator 1047 (top pick), Behringer Surges for tighter budgets, and Behringer Filtamp Module 1006 for pros — selected from 15 options across 3 brands, priced $31–$97, ranked by brand, price and popularity.
#1
⭐
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
⭐
3.0/5
AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
9/10
Art. 508282
$58
#2
⭐
2.7/5
AudioFu Score
Specs:
6/10
Detail:
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
⭐
2.7/5
AudioFu Score
Specs:
6/10
Detail:
5/10
Value:
9/10
Art. 603379
$50
#3
⭐
2.1/5
AudioFu Score
Specs:
6/10
Detail:
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
⭐
2.1/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 501739
$65
#4
⭐
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
#5
⭐
2.0/5
AudioFu Score
Specs:
6/10
Detail:
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
#6
⭐
1.9/5
AudioFu Score
Specs:
6/10
Detail:
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
#7
⭐
1.9/5
AudioFu Score
Specs:
6/10
Detail:
2/10
Value:
9/10
Doepfer A-103 18dB Low Pass Filter
by
Doepfer
Classic Synthesis
Audio Processing
Subtractive Synthesis
Key Feature:
This A-103 is a no-brainer if you’re chasing that iconic TB-303 acid sound. It's a compact, reliable workhorse that brings a distinct, warm character to your modular patches—perfect for techno, house, and experimental sound design. It’s an essential module for recreating classic sounds or forging your own sonic territory.
PROS
- • Classic TB-303 filter character, instantly recognizable and usable
- • Transistor ladder design delivers a warm, resonant low-end
- • Compact 8HP footprint, ideal for space-constrained modular systems
- • Solid Doepfer build quality; reliable and durable for years.
CONS
- • Limited resonance control compared to more modern filter designs
- • Power draw is a bit higher than some other Eurorack modules
- • The 18dB slope can be aggressive; not always subtle.
⭐
1.9/5
AudioFu Score
Specs:
6/10
Detail:
2/10
Value:
9/10
Art. 199307
$98
#8
⭐
1.8/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Doepfer A-124 Wasp Filter
by
Doepfer
Audio Processing
Sound Shaping
Frequency Control
Key Feature:
The Doepfer A-124 Wasp Filter is a quirky, characterful module that delivers a distinct, gritty sound. It's a fantastic choice for sound designers and experimental musicians looking to add a touch of vintage edge and controlled chaos to their patches—it’s not a substitute for a clean, surgical filter, but a flavorful accent.
PROS
- • Unique, aggressive filter character inspired by the Waspin synth
- • Provides distinct distortion and 'dirty' sonic textures
- • Offers bandpass and combined low/notch/highpass outputs for versatility
- • Compact Eurorack module, ideal for tight modular setups
CONS
- • Limited resonance control compared to more modern filter designs
- • Can be noisy if gain staging isn't carefully managed
- • The 'dirty' sound isn't for pristine, clean filter applications
⭐
1.8/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 170839
$97
#9
⭐
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
⭐
1.8/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
10/10
Art. 490741
$32
#10
⭐
1.7/5
AudioFu Score
Specs:
5/10
Detail:
3/10
Value:
9/10
Shakmat Modular HiPass
Audio Processing
Classic Synthesis
Subtractive Synthesis
Key Feature:
This Shakmat HiPass is a clever little module for anyone wanting to clean up low-end muddiness or subtly sculpt the mid-range. It's not a replacement for a full-blown state-variable filter, but it's a surprisingly effective and affordable way to add some clarity and character to your modular sound. Perfect for ambient soundscapes or tightening up basslines.
PROS
- • Dual-stage filtering provides unique, nuanced tonal shaping possibilities.
- • Compact 2HP footprint maximizes space in dense modular setups.
- • Distinct frequency ranges per section offer flexible routing options.
- • Shakmat's typical robust build quality ensures long-term reliability.
CONS
- • Limited frequency range compared to broader, multi-mode filters.
- • 15mA current draw, while reasonable, can add up in large systems.
- • Lacks resonance control, restricting feedback and screaming textures.
⭐
1.7/5
AudioFu Score
Specs:
5/10
Detail:
3/10
Value:
9/10
Art. 521223
$98
#11
⭐
1.7/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
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
⭐
1.7/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 489405
$48
#12
⭐
1.7/5
AudioFu Score
Specs:
6/10
Detail:
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
#13
⭐
1.7/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Doepfer A-102
by
Doepfer
Sound Shaping
Frequency Control
Tonal Character
Key Feature:
The A-102 is a workhorse filter – a solid, reliable foundation for any Eurorack system. Its warm, slightly gritty character is perfect for classic synth sounds, and its compact size makes it a great choice for those with limited space. This is an essential module for anyone wanting to explore the classic Doepfer sound.
PROS
- • Classic Doepfer sound – warm, resonant, and musical.
- • Diode ladder design provides a distinct, slightly edgy character.
- • Compact 8HP footprint, ideal for dense modular setups.
- • Excellent value; a foundational filter at a reasonable price point.
CONS
- • Limited modulation options compared to more modern filter designs.
- • Simple controls may feel restrictive for complex sound design.
- • The 12V power requirement can be a consideration in some systems.
⭐
1.7/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 114711
$97
#14
⭐
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
⭐
1.6/5
AudioFu Score
Specs:
6/10
Detail:
3/10
Value:
9/10
Art. 615088
$54
#15
⭐
1.5/5
AudioFu Score
Specs:
6/10
Detail:
2/10
Value:
9/10
Doepfer A-106-5 SEM Filter
by
Doepfer
Audio Processing
Subtractive Synthesis
Frequency Control
Key Feature:
This A-106-5 SEM filter is a fantastic recreation of a classic voice – it’s a genuine slice of vintage synth goodness in a tiny package. Perfect for those wanting that warm, resonant SEM sound without the expense of a full vintage module, and it slots neatly into any Eurorack system.
PROS
- • Classic SEM filter character, instantly recognizable and warm
- • Excellent build quality typical of Doepfer's meticulous engineering
- • Compact 8HP footprint, ideal for dense modular setups
- • Provides a unique, resonant low-pass character for evolving textures
CONS
- • Limited filter modes compared to more modern, complex filters
- • Power draw might be significant for smaller power supplies
- • Requires Eurorack format, not standalone operation
⭐
1.5/5
AudioFu Score
Specs:
6/10
Detail:
2/10
Value:
9/10
Art. 253405
$94
How to Choose the Best Filter Modules
1
Resonance
This is the thing. Cheap filters often have weak or fizzy resonance. We're looking for that sweet spot where it adds character, not just harshness. A good resonance can make a simple oscillator sound like a whole patch.
2
Filter Slope (dB/Octave)
12dB/octave is common at this price point, offering a decent cut. 24dB/octave is more aggressive and can introduce more self-oscillation, but you're less likely to find it under $100. Know what you're getting.
3
Frequency Range
A wider frequency range lets you shape sounds more dramatically, from subtle low-cut warmth to aggressive high-frequency filtering. Limited range means limited tonal options.
4
Drive/Saturation
Many cheaper filters lack dedicated drive. This means you're relying on the input signal to create harmonic richness, which can be inconsistent. Some modules sneak in a simple drive circuit, which is a huge bonus.
5
Build Quality/Pots
Let's be honest, pots get scratchy and knobs fall off. We're assessing how well these modules will survive gigging or even just regular use in a bedroom studio - plastic knobs vs. metal, flimsy jacks, overall construction.
Buying Guide
At this price, you're making trade-offs. Expect some compromises - the pots might be a bit noisy, the resonance might not be as smooth as a Moog, and the build quality won't be industrial. Don't expect a wide range of filter types - most will be variations on the Moog ladder filter. Focus on the core character; a gritty filter can be amazing for distorted basslines, while a cleaner one is better for pads and evolving textures.
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
Nope. They're a different league. But they can still sound good, just in a different way. Think of them as a starting point, or a way to add character without breaking the bank.
Low-pass lets low frequencies through, high-pass cuts them, and band-pass isolates a specific frequency range. Experiment - combinations of these can create wild effects.
That's a common problem with cheaper filters. It's often a sign of poor component quality or a poorly designed resonance circuit. Try reducing the input signal level or adding a buffer before the filter.
Potentially. You'll need a Eurorack-to-1/4" converter. The signal levels might not be ideal, but it's a way to get the filter's character into your existing setup.
Some modules include a high-pass or band-pass mode, but it's rare to find a full multi-mode filter under $100. Look closely at the module's description and patch examples.
