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Best AJH Synth Filter Modules 2025

Premium AJH Synth filter modules - legendary tone and craftsmanship

Last updated: October 22, 2025 • Next update: October 29, 2025

PRICE RANGES: Under $100 Under $200 Under $300 Under $500 Under $800
SKILL LEVELS: For Beginner For Intermediate For Professional For Advanced
GENRES & STYLES: For Sound Shaping For Frequency Control For Tonal Character For Classic Synthesis For Audio Processing For Subtractive Synthesis
BRANDS: Doepfer Erica Synths Behringer Tiptop Audio AJH Synth ADDAC
AJH Synth Sonic XV black - Professional Music Instrument Photo
#1

AJH Synth Sonic XV black

by AJH Synth
Classic Synthesis Frequency Control Audio Processing
Key Feature:
• CV control over frequency and resonance
✓ PROS
  • • Multiple filter types and characters
  • • Essential for subtractive synthesis
✗ CONS
  • • Patch complexity with multiple filters
  • • Character differences subtle to beginners

AJH Synth Sonic XV blackEurorack ModuleDiode Ladder FilterControls for cutoffresonance and input levelTwo integrated...

⭐ 4.9/5 (20 reviews)
Sound:
9/10
Build:
9/10
Value:
8/10
Art. 590778
$395
Buy at Thomann View Details
AJH Synth Gemini 2412 Dual SVF black - Professional Music Instrument Photo
#2

AJH Synth Gemini 2412 Dual SVF black

by AJH Synth
Tonal Character Subtractive Synthesis Classic Synthesis
Key Feature:
• Multiple filter types and characters
✓ PROS
  • • CV control over frequency and resonance
  • • Create classic synthesizer sounds
✗ CONS
  • • Character differences subtle to beginners
  • • May need multiple types for variety

AJH Synth Gemini 2412 Dual SVF blackEurorack moduleVariable dual filter2 Identical channels based on the classic SEM...

⭐ 4.5/5 (36 reviews)
Sound:
10/10
Build:
10/10
Value:
6/10
Art. 433600
$516
Buy at Thomann View Details
AJH Synth Gemini 2412 Dual SVF silver - Professional Music Instrument Photo
#3

AJH Synth Gemini 2412 Dual SVF silver

by AJH Synth
Frequency Control Subtractive Synthesis Audio Processing
Key Feature:
• CV control over frequency and resonance
✓ PROS
  • • Create classic synthesizer sounds
  • • Essential for subtractive synthesis
✗ CONS
  • • Self-oscillation can be tricky
  • • Can be expensive for quality filters

AJH Synth Gemini 2412 Dual SVF silverEurorack ModuleVariable dual filter2 Identical channels based on the classic SEM...

⭐ 4.8/5 (23 reviews)
Sound:
10/10
Build:
9/10
Value:
8/10
Art. 439206
$505
Buy at Thomann View Details
AJH Synth Matrix VCF black - Professional Music Instrument Photo
#4

AJH Synth Matrix VCF black

by AJH Synth
Classic Synthesis Sound Shaping Frequency Control
Key Feature:
• CV control over frequency and resonance
✓ PROS
  • • Multiple filter types and characters
  • • Essential for subtractive synthesis
✗ CONS
  • • Self-oscillation can be tricky
  • • Patch complexity with multiple filters

AJH Synth Matrix VCF blackEurorack ModuleAnalogue multi-mode filter with VCA16 selectable filter typesincluding...

⭐ 4.8/5 (13 reviews)
Sound:
7/10
Build:
7/10
Value:
7/10
Art. 619200
$428
Buy at Thomann View Details
AJH Synth MiniMod VCF black - Professional Music Instrument Photo
#5

AJH Synth MiniMod VCF black

by AJH Synth
Frequency Control Classic Synthesis Sound Shaping
Key Feature:
• Create classic synthesizer sounds
✓ PROS
  • • Shape and color synthesized sounds
  • • Multiple filter types and characters
✗ CONS
  • • Self-oscillation can be tricky
  • • May need multiple types for variety

AJH Synth MiniMod VCF blackEurorack ModuleExact replica of the legendary Ladder filterLow pass with edge steepness 24...

⭐ 4.7/5 (49 reviews)
Sound:
7/10
Build:
7/10
Value:
7/10
Art. 385035
$325
Buy at Thomann View Details

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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