Best Filter Modules Under $300 2026

Affordable filter modules under $300 - great value without compromising quality

Last updated: January 21, 2026 • Next update: January 28, 2026

XAOC Devices Katowice - Professional Music Instrument Photo
#1

XAOC Devices Katowice

Classic Synthesis Audio Processing Sound Shaping
Key Feature:
• Create classic synthesizer sounds
✓ PROS
  • • Essential for subtractive synthesis
  • • Create classic synthesizer sounds
✗ CONS
  • • Character differences subtle to beginners
  • • Can be expensive for quality filters

XAOC Devices KatowiceEurorack ModuleVariable stereo band isolator3 Frequency bands (lowhigh)each with volume fader and...

4.7/5 (46 reviews)
Sound:
7/10
Build:
7/10
Value:
8/10
XAOC Devices Zagrzeb - Professional Music Instrument Photo
#2

XAOC Devices Zagrzeb

Frequency Control Classic Synthesis Tonal Character
Key Feature:
• Essential for subtractive synthesis
✓ PROS
  • • Multiple filter types and characters
  • • Create classic synthesizer sounds
✗ CONS
  • • Self-oscillation can be tricky
  • • Character differences subtle to beginners

XAOC Devices ZagrzebEurorack ModuleStereo multimode filter4-Pole (-24 dB / oct.) state variable filterConfigurable...

4.7/5 (39 reviews)
Sound:
9/10
Build:
9/10
Value:
8/10
Doepfer A-121s VE - Professional Music Instrument Photo
#3

Doepfer A-121s VE

Frequency Control Tonal Character Classic Synthesis
Key Feature:
• CV control over frequency and resonance
✓ PROS
  • • Multiple filter types and characters
  • • Create classic synthesizer sounds
✗ CONS
  • • Self-oscillation can be tricky
  • • Can be expensive for quality filters

Doepfer A-121s VEEurorack ModuleStereo multimode VCFVintage Edition with a black front panelEach filter has...

4.8/5 (51 reviews)
Sound:
8/10
Build:
7/10
Value:
7/10
NANO Modules ST-FONT - Professional Music Instrument Photo
#4

NANO Modules ST-FONT

Sound Shaping Frequency Control Classic Synthesis
Key Feature:
• Essential for subtractive synthesis
✓ PROS
  • • Shape and color synthesized sounds
  • • Multiple filter types and characters
✗ CONS
  • • Character differences subtle to beginners
  • • Can be expensive for quality filters

NANO Modules ST-FONTEurorack ModuleLiquid Stereo FilterTwo analogue multimode filters for stereo and dual-mono...

4.5/5 (55 reviews)
Sound:
9/10
Build:
8/10
Value:
8/10
Erica Synths Black 3109 VCF/VCA - Professional Music Instrument Photo
#5

Erica Synths Black 3109 VCF/VCA

Classic Synthesis Frequency Control Sound Shaping
Key Feature:
• Create classic synthesizer sounds
✓ PROS
  • • Create classic synthesizer sounds
  • • Multiple filter types and characters
✗ CONS
  • • Can be expensive for quality filters
  • • Patch complexity with multiple filters

Erica Synths Black 3109 VCF/VCAEurorack ModuleLow-pass filter (24 dB/oct.) with built-in VCAControls for...

4.7/5 (32 reviews)
Sound:
8/10
Build:
9/10
Value:
9/10
Doepfer A-121s - Professional Music Instrument Photo
#6

Doepfer A-121s

Audio Processing Classic Synthesis Frequency Control
Key Feature:
• Shape and color synthesized sounds
✓ PROS
  • • Create classic synthesizer sounds
  • • Multiple filter types and characters
✗ CONS
  • • May need multiple types for variety
  • • Can be expensive for quality filters

Doepfer A-121sEurorack ModuleStereo multimode VCFEach filter has continuously adjustable characteristics (from low-pass...

4.5/5 (25 reviews)
Sound:
9/10
Build:
9/10
Value:
9/10
Shakmat Modular Dual Dagger - Professional Music Instrument Photo
#7

Shakmat Modular Dual Dagger

Subtractive Synthesis Tonal Character Audio Processing
Key Feature:
• Multiple filter types and characters
✓ PROS
  • • Essential for subtractive synthesis
  • • CV control over frequency and resonance
✗ CONS
  • • Can be expensive for quality filters
  • • Character differences subtle to beginners

Shakmat Modular Dual DaggerEurorack ModuleDual Stereo FilterCalibrated low-pass and high-pass filters per...

4.7/5 (40 reviews)
Sound:
8/10
Build:
7/10
Value:
7/10
Befaco BF-22 Sallen Key Filter - Professional Music Instrument Photo
#8

Befaco BF-22 Sallen Key Filter

Subtractive Synthesis Tonal Character Audio Processing
Key Feature:
• Essential for subtractive synthesis
✓ PROS
  • • Shape and color synthesized sounds
  • • CV control over frequency and resonance
✗ CONS
  • • Character differences subtle to beginners
  • • Patch complexity with multiple filters

Befaco BF-22 Sallen Key FilterEurorack ModuleAnalogue two-channel filter from the MS-20Each channel switchable between...

4.5/5 (54 reviews)
Sound:
8/10
Build:
8/10
Value:
9/10
Tobinski Dual LPG/VCA - Professional Music Instrument Photo
#9

Tobinski Dual LPG/VCA

Classic Synthesis Subtractive Synthesis Audio Processing
Key Feature:
• Essential for subtractive synthesis
✓ PROS
  • • Shape and color synthesized sounds
  • • Essential for subtractive synthesis
✗ CONS
  • • May need multiple types for variety
  • • Character differences subtle to beginners

Tobinski Dual LPG/VCAEurorack ModuleTwo independent channelsMode switchable per channel between Low Pass Gate (LPG) or...

4.7/5 (54 reviews)
Sound:
7/10
Build:
7/10
Value:
7/10
Make Noise DXG - Professional Music Instrument Photo
#10

Make Noise DXG

Tonal Character Sound Shaping Subtractive Synthesis
Key Feature:
• Multiple filter types and characters
✓ PROS
  • • Create classic synthesizer sounds
  • • Multiple filter types and characters
✗ CONS
  • • Can be expensive for quality filters
  • • May need multiple types for variety

Make Noise DXGEurorack ModuleDual Stereo GateStereo lowpass gate with two channelsTwo audio inputs per channel (left...

4.6/5 (36 reviews)
Sound:
9/10
Build:
8/10
Value:
8/10
Tiptop Audio Z2040 - Professional Music Instrument Photo
#11

Tiptop Audio Z2040

Sound Shaping Frequency Control Subtractive Synthesis
Key Feature:
• CV control over frequency and resonance
✓ PROS
  • • Essential for subtractive synthesis
  • • CV control over frequency and resonance
✗ CONS
  • • Character differences subtle to beginners
  • • Can be expensive for quality filters

Tiptop Audio Z2040Filter Module4 dB 4-pole low pass VCFRedesign of the Prophet 5 Rev 2 Low Pass FilterVoltage...

4.4/5 (46 reviews)
Sound:
7/10
Build:
7/10
Value:
9/10
Ritual Electronics Altar II - Professional Music Instrument Photo
#12

Ritual Electronics Altar II

Sound Shaping Audio Processing Subtractive Synthesis
Key Feature:
• CV control over frequency and resonance
✓ PROS
  • • Essential for subtractive synthesis
  • • CV control over frequency and resonance
✗ CONS
  • • Can be expensive for quality filters
  • • Patch complexity with multiple filters

Ritual Electronics Altar IIEurorack ModuleAnalogue 3-pole multimode filterVariable filter type from bandpass to lowpass...

4.5/5 (8 reviews)
Sound:
7/10
Build:
7/10
Value:
9/10
ADDAC 604 Dual Filter - Professional Music Instrument Photo
#13

ADDAC 604 Dual Filter

Frequency Control Subtractive Synthesis Tonal Character
Key Feature:
• Essential for subtractive synthesis
✓ PROS
  • • CV control over frequency and resonance
  • • Create classic synthesizer sounds
✗ CONS
  • • Character differences subtle to beginners
  • • Self-oscillation can be tricky

ADDAC 604 Dual FilterEurorack ModuleAnalogue two-channel multimode filterSwitchable stereo modePer channel: Controls...

4.5/5 (52 reviews)
Sound:
7/10
Build:
7/10
Value:
9/10
Erica Synths Black Polivoks VCF V2 - Professional Music Instrument Photo
#14

Erica Synths Black Polivoks VCF V2

Frequency Control Tonal Character Audio Processing
Key Feature:
• Essential for subtractive synthesis
✓ PROS
  • • CV control over frequency and resonance
  • • Essential for subtractive synthesis
✗ CONS
  • • Patch complexity with multiple filters
  • • Self-oscillation can be tricky

Erica Synths Black Polivoks VCF V2VCF moduleEmulation of the Russian synthesizer Polivoks by the Formanta Radio...

4.7/5 (51 reviews)
Sound:
9/10
Build:
7/10
Value:
9/10
Erica Synths Black DJ VCF - Professional Music Instrument Photo
#15

Erica Synths Black DJ VCF

Tonal Character Subtractive Synthesis Sound Shaping
Key Feature:
• Shape and color synthesized sounds
✓ PROS
  • • Create classic synthesizer sounds
  • • CV control over frequency and resonance
✗ CONS
  • • Character differences subtle to beginners
  • • Patch complexity with multiple filters

Erica Synths Black DJ VCFEurorack ModuleAnalogue filter (-24 dB/oct.) with stepless crossfade between low-pass and...

4.4/5 (44 reviews)
Sound:
7/10
Build:
7/10
Value:
8/10

How to Choose the Best Filter Modules

Budget Planning

  • • Under $200: Entry-level
  • • $200-$500: Intermediate
  • • $500-$1000: Advanced
  • • $1000+: Professional

Quality Check

  • • Sound clarity & tone
  • • Build materials & finish
  • • Hardware durability
  • • Overall craftsmanship

Key Features

  • • Your musical style
  • • Skill level match
  • • Intended use case
  • • Brand reputation

Frequently Asked Questions

Key factors include build quality, sound characteristics, playability, brand reputation, warranty coverage, and value for money. Consider your musical style, skill level, and intended use to find the best match.
Budget depends on your needs and experience level. Beginners can find quality options for $200-500, intermediate players should consider $500-1500 range, while professionals often invest $1500+ for premium features.
Higher-priced filter modules typically offer better materials, craftsmanship, and performance. They're worth it if you're serious about music, perform regularly, or need professional-grade features.
Top brands combine quality, innovation, and reliability. We evaluate brands based on build quality, sound performance, durability, and customer satisfaction to recommend the best options for different budgets.
Both have advantages. Online offers better prices and selection, while stores allow hands-on testing. We recommend researching online first, then testing in stores if possible. Many online retailers offer excellent return policies.

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