AudioFu Chart · October 2026

Best Filter Modules for Advanced 2026

Q: What's the difference between a 2-pole and 4-pole filter?

Generally, more poles mean a steeper cutoff slope and more resonance. A 4-pole filter will have a more dramatic effect and potentially more self-oscillation. But a 2-pole can be more subtle and musical, especially in parallel configurations.

Q: Can I use a filter module as an oscillator?

Absolutely! When you crank the resonance high enough, many filters will self-oscillate, producing a sine wave-like tone. This is a common technique for creating unique soundscapes and drones.

Q: What's the best filter for bass?

It depends on the bass sound you want. A ladder filter with a smooth resonance can create a classic Moog-style bass. A state-variable filter offers more precise control over phase and harmonic content. Experiment! Don't be afraid to drive the input a little for some grit.

Q: I'm overwhelmed by the options. Where should I start?

Start with a versatile multimode filter - something with a few different topologies and decent modulation options. Then, dive deep into its capabilities. Don't buy a dozen filters at once.

Q: Is saturation always a good thing?

Not always. Too much saturation can make a sound muddy and indistinct. It's about finding the sweet spot where it adds character and warmth without masking the underlying tone. Use your ears!

The top pick is Verbos Electronics Dual Four Pole ($526). Xaoc Devices Belgrad Dual Peak State Variable Filter gives you the most for the money at $364. Verbos Electronics Bark Filter Processor leads the high end. Ranked by the AudioFu Index from 90 models across 30 brands, prices checked every night.

Last updated: October 12, 2026

90models in this chart

30brands

$207median price

28price drops since Aug

Narrow the chart

All Filter Modules Showing: For Advanced · clear

Price

Skill level

Brand

Top 10

Full detail for the 10 highest AudioFu Index scores. Every other model is listed below.

Verbos Electronics Dual Four Pole
Verbos Electronics
10 for sale on Reverb1 finish at Thomann
This Dual Four Pole is a beautifully voiced filter module, perfect for sound designers and experimental musicians seeking a refined, analog character. It’s a serious upgrade for those wanting to sculpt complex textures and evolving soundscapes – not so much a screaming, aggressive filter, but a truly musical one.
Pros
- Exceptional discrete filter design delivers a warm, organic tone.
- Normalisation provides a seamless, resonant high-to-low-pass transition.
- Well-built with robust construction and quality components – feels solid.
Cons
- 21 TE width can be restrictive in smaller Eurorack cases.
- Limited resonance range; lacks aggressive self-oscillation for extreme sounds.
71AudioFu
Index
- Demand83
- Lineup43
- Price94
- Maker41
↓ 14.6%since Aug 14 · lowest so far
$615 · Aug 14$526 now

$526€469 at Thomann · in stock
Check price ↗
4MS Spectral Multiband Resonator
Spectral Multiband Resonator · 4ms
15 for sale on Reverb1 finish at Thomann
The Spectral Multiband Resonator is a seriously unique tool for sound design. It’s not a simple filter; it’s a resonant landscape generator perfect for experimental electronic music, ambient soundscapes, and anyone wanting to push the boundaries of modular synthesis. Be prepared to dig in – it's rewarding, but takes some effort to truly master.
Pros
- Exceptional tonal sculpting with six independently tunable bands.
- The scale quantization offers surprisingly musical and predictable results.
- Envelope follower per channel unlocks unique rhythmic and textural possibilities.
Cons
- The 26U width demands significant space in a modular setup.
- Steep learning curve; mastering all controls requires dedication.
68AudioFu
Index
- Demand96
- Lineup43
- Price57
- Maker21
↓ 2.3%since Aug 14 · lowest so far
$492 · Aug 14$481 now

$481€429 at Thomann · in stock
Check price ↗
Make Noise QPAS Module
QPAS · Make Noise
13 for sale on Reverb1 finish at Thomann
The QPAS is a powerhouse for sound designers and experimental musicians. Its ability to sculpt a wide stereo field with its unique filter topologies is genuinely impressive—it's a characterful, complex module that rewards exploration. This is perfect for those looking to add serious texture and movement to their modular patches.
Pros
- Exceptional stereo image creation with unique filter cores
- Smile pass mode offers truly novel and characterful filtering
- Pre-VCA adds useful dynamic shaping capabilities
Cons
- Relatively high current draw can strain power supplies
- Steep learning curve for mastering all modulation options
66AudioFu
Index
- Demand91
- Lineup43
- Price50
- Maker33
Stableno change since Aug 14
Aug 14$468 now

$468€418 at Thomann · in stock
Check price ↗
Xaoc Devices Belgrad Dual Peak State Variable Filter
Belgrad · XAOC Devices
17 for sale on Reverb1 finish at Thomann
The Belgrad is a powerhouse of a filter module – it’s seriously versatile. It’s ideal for sound designers and experimental musicians who want a wide palette of filter sounds, from subtle movement to chaotic, screaming textures. The non-linear feedback adds a real edge and makes it a real characterful module.
Pros
- Exceptional filter character, blending warmth and aggressive resonance.
- Unique filter modes offer incredible sonic versatility.
- Robust build quality with a reassuringly solid feel.
Cons
- Power consumption is relatively high for a single module.
- Steeper learning curve for mastering all filter modes.
72AudioFu
Index
- Demand100
- Lineup43
- Price50
- Maker48
Stableno change since Aug 14
Aug 14$364 now

$364€325 at Thomann · in stock
Check price ↗
Verbos Electronics Bark Filter Processor
Verbos Electronics
7 for sale on Reverb1 finish at Thomann
The Bark Filter Processor is a seriously unique tool for sound designers and experimental musicians. Its 12-band fixed filter bank, combined with the Frequency Scan and Spectral Tilt, lets you create incredibly complex and evolving textures. It's not a general-purpose filter, but if you're chasing truly otherworldly sounds, this is a game-changer.
Pros
- Exceptional spectral sculpting capabilities for unique sound design
- The Frequency Scan offers incredibly musical and dynamic modulation
- Individual band level faders provide precise tonal shaping
Cons
- High current draw demands a powerful PSU in your modular setup
- Steep learning curve; mastering the Bark takes dedication and experimentation
58AudioFu
Index
- Demand72
- Lineup43
- Price50
- Maker41
Stablesince Aug 14
$1,081 · Aug 14$1,081 now

$1,081€965 at Thomann · in stock
Check price ↗
Frap Tools Cunsa Sound Seasoning
Cunsa · Frap Tools
5 for sale on Reverb1 finish at Thomann
The Cunsa is a seriously impressive filter module. It's got a really distinctive character – not your typical Moog-style filter – with a raw, almost aggressive edge that’s fantastic for experimental sound design or adding grit to more conventional patches. This is a perfect module for seasoned modular users looking to expand their sonic palette and create complex, evolving textures.
Pros
- Exceptional filter character; truly unique and musical voicing.
- Robust build quality with Frap's signature meticulous craftsmanship.
- Comprehensive CV control allows for deep, dynamic sound sculpting.
Cons
- 42HP is substantial; requires a larger Eurorack case.
- Price point positions it as a premium investment for serious users.
54AudioFu
Index
- Demand62
- Lineup43
- Price62
- Maker33
↓ 4.0%since Aug 14 · lowest so far
$1,108 · Aug 14$1,063 now

$1,063€949 at Thomann · in stock
Check price ↗
Frap Tools Fumana - Dual 16 Bands Spectral Editor
Fumana · Frap Tools
5 for sale on Reverb1 finish at Thomann
The Fumana is a truly unique filter module; its 16-band design allows for incredibly detailed spectral manipulation. It's perfect for sound designers and experimental musicians who want to craft otherworldly textures and complex rhythmic patterns—be prepared to dive deep into its intricacies, though.
Pros
- Exceptional spectral sculpting capabilities with 16 bandpass filters
- Envelope follower per band offers unique modulation possibilities
- Dual filter paths allow complex carrier/modulator processing
Cons
- Significant power draw demands a robust PSU
- Steep learning curve due to intricate routing options
51AudioFu
Index
- Demand62
- Lineup43
- Price47
- Maker33
↑ 1.1%since Aug 14
$1,063 · Aug 14$1,075 now

$1,075€959 at Thomann · in stock
Check price ↗
Tiptop Audio Octopass
Tiptop Audio
Not on Reverb yet1 finish at Thomann
The Octopass is a serious contender if you're chasing that classic Moog filter sound in a Eurorack format and need polyphonic capabilities. It's a fantastic workhorse for sound design and sequencing, especially if you're already invested in Tiptop's Polytip ecosystem. This module shines for those wanting a focused, powerful filter without the complexity of a multi-mode behemoth.
Pros
- Exceptional 24dB low-pass character, classic Moog-inspired warmth.
- Polytip system enables genuinely polyphonic Eurorack workflows.
- Robust build quality with Tiptop's signature metal chassis.
Cons
- Polytip cables are proprietary and add to the overall expense.
- 20HP footprint can be restrictive in smaller Eurorack cases.
48AudioFu
Index
- Demand30
- Lineup43
- Price100
- Maker53
↓ 24.0%since Aug 14 · lowest so far
$559 · Aug 14$425 now

$425€379 at Thomann · in stock
Check price ↗
Tiptop Audio Buchla Model 296t
Tiptop Audio
Not on Reverb yet1 finish at Thomann
The 296t is a beast for sound design and experimental textures. If you're into vocoding, complex filtering, or just want to mangle sounds in seriously unique ways, this module will be your new best friend. It's a premium-priced piece, but the sonic possibilities are truly rewarding once you wrap your head around it.
Pros
- Exceptional sonic sculpting capabilities with 16 distinct bands.
- Robust build quality; Tiptop's signature metal chassis feels solid.
- Envelope follower outputs offer unique modulation possibilities.
Cons
- Steep learning curve; mastering the complex routing takes dedication.
- Power hungry; demands a substantial amount of current from your PSU.
47AudioFu
Index
- Demand30
- Lineup43
- Price93
- Maker53
↓ 14.3%since Aug 14 · lowest so far
$783 · Aug 14$671 now

$671€599 at Thomann · in stock
Check price ↗
AJH Synth Gemini 2412 Dual SVF silver
AJH Synth
Not on Reverb yet2 finishes at Thomann
The Gemini 2412 is a seriously cool module for anyone wanting that classic Sequential Engine Music sound. It’s a fantastic way to add warmth and movement to your patches, especially if you’re into experimental sound design or recreating vintage synth tones. Really shines for ambient and cinematic soundscapes.
Pros
- Classic SEM filter sound, incredibly warm and resonant
- Dual SVF design offers unique filtering possibilities
- Silver faceplate elevates the module's aesthetic appeal
Cons
- Parallel/serial switching can be a bit fiddly in performance
- Limited modulation options beyond CV input
45AudioFu
Index
- Demand30
- Lineup68
- Price50
- Maker53
Stableno change since Aug 14
Aug 14$514 now

$514€459 at Thomann · in stock
Check price ↗

All 90 filter modules

Sort

Same index, same nightly prices — compact. Colour options of one model share a row. Tap a photo to zoom.

11
Tiptop Audio Buchla Model 292tTiptop Audio

Index 46↓ 12.8%
46
↓ 12.8%$390€348
$390€348Check ↗
12
Joranalogue Audio Design Filter 8Joranalogue Audio Design

Index 57Stable
57
Stable$331€295
$331€295Check ↗
13
Future Retro TransferFuture Retro

Index 41↓ 10.0%
41
↓ 10.0%$402€359
$402€359Check ↗
14
XAOC Devices OradeaXAOC Devices

Index 41↓ 3.9%
41
↓ 3.9%$559€499
$559€499Check ↗
15
Erica Synths Graphic Resonant FBErica Synths

Index 40Stable
40
Stable$414€369
$414€369Check ↗
16
AJH Synth Matrix VCF blackAJH Synth

Index 39Stable
39
Stable$436€389
$436€389Check ↗
17
AJH Synth Sonic XV blackAJH Synth

Index 41↓ 2.8%
41
↓ 2.8%$391€349
$391€349Check ↗
18
TouellSkouarn Ar Merc´het BraoTouellSkouarn

Index 37Stable
37
Stable$402€359
$402€359Check ↗
19
Doepfer A-121s VEDoepfer · 4 finishes

Index 58Stable
58
Stable$290€259
$290€259Check ↗
20
ADDAC 601 VC Fixed FilterbankADDAC

Index 35↑ 8.6%
35
↑ 8.6%$481€429
$481€429Check ↗
21
ADDAC 603 VC Triple Bandpass FilterADDAC

Index 35↑ 7.5%
35
↑ 7.5%$481€429
$481€429Check ↗
22
Industrial Music Electronics Bionic Lester MKIIIIndustrial Music Electronics

Index 35Stable
35
Stable$537€479
$537€479Check ↗
23
Weston Precision Audio SF1 Dual / Stereo FilterWeston Precision Audio

Index 37Stable
37
Stable$391€349
$391€349Check ↗
24
Shakmat Modular Centaur´s GateShakmat Modular

Index 38Stable
38
Stable$380€339
$380€339Check ↗
25
Modbap Modular MeridianModbap Modular

Index 39↓ 7.2%
39
↓ 7.2%$373€333
$373€333Check ↗
26
BASTL Instruments IkarieIkarie · Bastl Instruments

Index 41Stable
41
Stable$356€318
$356€318Check ↗
27
Schlappi Engineering 100 Grit BlackSchlappi Engineering · 2 finishes

Index 43Stable
43
Stable$323€288
$323€288Check ↗
28
Vostok Instruments AtlasVostok Instruments

Index 35Stable
35
Stable$356€318
$356€318Check ↗
29
AJH Synth MiniMod VCF blackAJH Synth

Index 39Stable
39
Stable$331€295
$331€295Check ↗
30
Weston Precision Audio TriviumWeston Precision Audio

Index 37Stable
37
Stable$335€299
$335€299Check ↗
31
u-he MELTu-he

Index 35Stable
35
Stable$335€299
$335€299Check ↗
32
Klavis GrainityKlavis

Index 35Stable
35
Stable$313€279
$313€279Check ↗
33
XAOC Devices ZagrzebXAOC Devices

Index 39Stable
39
Stable$290€259
$290€259Check ↗
34
XAOC Devices KatowiceXAOC Devices

Index 39Stable
39
Stable$289€258
$289€258Check ↗
35
Doepfer A-105-4 Quad Poly VCFDoepfer

Index 46↓ 2.2%
46
↓ 2.2%$245€219
$245€219Check ↗
36
Shakmat Modular Dual DaggerShakmat Modular

Index 38Stable
38
Stable$278€248
$278€248Check ↗
37
Stylophone CPM DF-8Stylophone

Index 35Stable
35
Stable$289€258
$289€258Check ↗
38
Tobinski Dual LPG/VCATobinski

Index 35Stable
35
Stable$279€249
$279€249Check ↗
39
Befaco BF-22 Sallen Key FilterBefaco

Index 38Stable
38
Stable$245€219
$245€219Check ↗
40
ADDAC 604 Dual FilterADDAC

Index 37↑ 4.8%
37
↑ 4.8%$245€219
$245€219Check ↗
41
Doepfer A-124 VCF5 Wasp FilterA-124 Wasp Filter SE · Doepfer · 2 finishes

Index 78Stable
78
Stable$99€88
$99€88Check ↗
42
Doepfer A-106-5 12dB SEM Type Voltage Controlled FilterA-106-5 SEM Filter Special Ed. · Doepfer · 2 finishes

Index 74Stable
74
Stable$95€85
$95€85Check ↗
43
Erica Synths Pico VCF1 FilterPico VCF1 · Erica Synths

Index 68Stable
68
Stable$111€99
$111€99Check ↗
44
Endorphin.es Squawk Dirty To Me Eurorack Synth ModuleSquawk Dirty To Me Silver · Endorphin.es · 2 finishes

Index 67↓ 2.2%
67
↓ 2.2%$196€175
$196€175Check ↗
45
Behringer 914 Fixed Filter Bank Eurorack Synthesizer Module914 Fixed Filter Bank · Behringer

Index 65↓ 11.9%
65
↓ 11.9%$58€52
$58€52Check ↗
46
Erica Synths Black Multimode VCFErica Synths

Index 64Stable
64
Stable$201€179
$201€179Check ↗
47
Erica Synths Black Polivoks VCF V2Erica Synths

Index 62Stable
62
Stable$222€198
$222€198Check ↗
48
Behringer 904B Voltage Controlled High Pass Filter Eurorack…904B VC High Pass Filter · Behringer

Index 61Stable
61
Stable$31€28
$31€28Check ↗
49
Doepfer A-124-2Doepfer · 2 finishes

Index 60↓ 17.4%
60
↓ 17.4%$106€95
$106€95Check ↗
50
Behringer 121 Dual VCF Eurorack Synthesizer Module121 Dual VCF · Behringer

Index 59↓ 4.6%
59
↓ 4.6%$47€42
$47€42Check ↗
51
Doepfer A-120 VCF1 24dB Low Pass FilterA-120 · Doepfer · 2 finishes

Index 59Stable
59
Stable$129€115
$129€115Check ↗
52
Behringer 1006 FiltAmp 4-Pole VCF / VCA Eurorack ModuleFiltamp Module 1006 · Behringer

Index 58↓ 33.9%
58
↓ 33.9%$44€39
$44€39Check ↗
53
Doepfer A-101-1 Vactrol VCFA-101-1 · Doepfer

Index 55↓ 4.1%
55
↓ 4.1%$156€139
$156€139Check ↗
54
Doepfer A-105-2 VEDoepfer · 2 finishes

Index 53↓ 4.8%
53
↓ 4.8%$133€119
$133€119Check ↗
55
Verbos Electronics Noise & FilterVerbos Electronics

Index 53Stable
53
Stable$139€124
$139€124Check ↗
56
Befaco Pony VCF Eurorack Synthesizer ModulePony VCF · Befaco

Index 53Stable
53
Stable$207€185
$207€185Check ↗
57
BASTL Instruments Cinnamon Voltage Controlled State Variable FilterCinnamon · Bastl Instruments

Index 52Stable
52
Stable$196€175
$196€175Check ↗
58
Behringer 904A Voltage Controlled Low Pass Filter Eurorack…904A VC Low Pass Filter · Behringer

Index 51↓ 3.5%
51
↓ 3.5%$31€28
$31€28Check ↗
59
Behringer SurgesBehringer

Index 50↓ 20.0%
50
↓ 20.0%$40€36
$40€36Check ↗
60
Behringer WASP Deluxe Desktop SynthesizerWasp VCF · Behringer

Index 50Stable
50
Stable$55€49
$55€49Check ↗
61
Doepfer A-108 VCF8A-108 · Doepfer

Index 49Stable
49
Stable$173€154
$173€154Check ↗
62
Doepfer A-121 VCF2 Multimode FilterA-121-2 · Doepfer · 2 finishes

Index 48Stable
48
Stable$140€125
$140€125Check ↗
63
Doepfer A-106-6 XP FilterDoepfer

Index 48↓ 5.7%
48
↓ 5.7%$167€149
$167€149Check ↗
64
Behringer Multi Filter/Resonator 1047Behringer

Index 47↓ 11.3%
47
↓ 11.3%$53€47
$53€47Check ↗
65
NANO Modules FONTNANO Modules

Index 46↓ 18.2%
46
↓ 18.2%$101€90
$101€90Check ↗
66
Doepfer A-103 18dB Low Pass FilterDoepfer

Index 45Stable
45
Stable$100€89
$100€89Check ↗
67
Doepfer A-121-3Doepfer

Index 45Stable
45
Stable$110€98
$110€98Check ↗
68
Doepfer A-101-2 Vactrol Lowpass GateDoepfer

Index 45Stable
45
Stable$111€99
$111€99Check ↗
69
Doepfer A-123-2Doepfer

Index 45Stable
45
Stable$129€115
$129€115Check ↗
70
Doepfer A-106-1 Xtreme Filter (MS20)Doepfer

Index 45Stable
45
Stable$133€119
$133€119Check ↗
71
Doepfer A-104Doepfer

Index 45Stable
45
Stable$156€139
$156€139Check ↗
72
Doepfer A-102Doepfer

Index 44↑ 1.1%
44
↑ 1.1%$100€89
$100€89Check ↗
73
Doepfer A-101-6 Opto VCF Opto FET Filter / PhaserA-101-6 · Doepfer

Index 42Stable
42
Stable$115€103
$115€103Check ↗
74
Behringer SwordsBehringer

Index 41Stable
41
Stable$111€99
$111€99Check ↗
75
Erica Synths Black LPGErica Synths

Index 41↓ 2.1%
41
↓ 2.1%$207€185
$207€185Check ↗
76
Befaco BanditBefaco

Index 40↓ 3.4%
40
↓ 3.4%$189€169
$189€169Check ↗
77
Erica Synths Black 3109 VCF/VCAErica Synths

Index 40Stable
40
Stable$207€185
$207€185Check ↗
78
Erica Synths Drum Stereo DJ VCFErica Synths

Index 40Stable
40
Stable$234€209
$234€209Check ↗
79
Tiptop Audio Forbidden Planet Analog FilterTiptop Audio

Index 39Stable
39
Stable$155€138
$155€138Check ↗
80
Tiptop Audio ResonatorTiptop Audio

Index 39Stable
39
Stable$212€189
$212€189Check ↗
81
Shakmat Modular HiPassShakmat Modular

Index 38Stable
38
Stable$100€89
$100€89Check ↗
82
Rides In The Storm HFDRides In The Storm

Index 37Stable
37
Stable$109€97
$109€97Check ↗
83
Rides In The Storm L5DRides In The Storm

Index 37Stable
37
Stable$126€112
$126€112Check ↗
84
TouellSkouarn Kala GoañvTouellSkouarn

Index 37Stable
37
Stable$201€179
$201€179Check ↗
85
NANO Modules ST-FONTNANO Modules

Index 37Stable
37
Stable$219€195
$219€195Check ↗
86
Joranalogue Audio Design Flow 3Joranalogue Audio Design

Index 37Stable
37
Stable$241€215
$241€215Check ↗
87
Make Noise DXGMake Noise

Index 37Stable
37
Stable$241€215
$241€215Check ↗
88
ADDAC 607 CrossoverADDAC

Index 36↑ 5.5%
36
↑ 5.5%$129€115
$129€115Check ↗
89
Intellijel Designs SVF 1UIntellijel Designs

Index 35Stable
35
Stable$177€158
$177€158Check ↗
90
ADDAC 605 Spectral TiltADDAC

Index 33↑ 12.9%
33
↑ 12.9%$196€175
$196€175Check ↗

Filter Modules by the numbers

Measured across all 102 models we track, not a sample.

Price distribution

Median $207 — half of all filter modules here cost less.

<$50$50–150$150–300$300–500$500–1k$1k+

How to choose the best filter modules

Resonance Character

A shallow, gentle resonance is fine for subtle warmth, but advanced players need that screaming, self-oscillating potential. The character of the resonance - whether it's smooth and creamy or has a gritty, FM-like edge - is key to the sounds you can create.

Filter Topology

Ladder filters are classic, but state-variable, multimode (2-pole, 4-pole), and even more esoteric topologies (like comb filters) offer unique sonic possibilities. Understanding the phase response and harmonic distortion characteristics of each is crucial for advanced sound design.

Modulation Options

Beyond basic cutoff frequency modulation, look for features like resonance modulation, drive/saturation modulation, and even filter-specific FM inputs. The more ways you can dynamically shape the filter's behavior, the more expressive your patches will be.

Parallel Filtering/Series Filtering

Advanced players often want to stack filters for complex tonal shaping. Modules offering parallel (filters run independently, outputs summed) and series (output of one filter becomes input of the next) filtering capabilities open up a world of sonic possibilities.

Drive/Saturation

A good filter module shouldn't just clean up a signal; it should be able to enhance it. Built-in drive or saturation stages can add warmth, grit, and harmonic complexity, especially when pushed hard with resonance.

Buying guide

So you're past the basic Moog ladder filter and want to really sculpt some sounds? Good. Filter modules are the heart of a lot of what makes modular synths sing, but they're also where things get seriously deep. We're talking about modules that can do more than just a basic low-pass; we're talking about complex resonance sweeps, parallel filtering, and shaping the harmonic content in ways that will completely transform your patches. Let's dive in.

Don't chase the biggest number of knobs. A complex module is only useful if you understand how to use it; a steep learning curve is part of the deal. Cheap modules often compromise on component quality - that means muddy low-end, brittle highs, and resonance that collapses instead of screaming.

It's worth paying a bit more for a module that sounds and feels solid, and has a good manual. You'll actually use it.

How the AudioFu Index works

Five measured signals and nothing else — no stars from strangers, no “tested by experts” we didn’t do. The weights are fixed and public. We don’t play these instruments; we measure the market around them.

This chart covers 102 filter modules from the Thomann catalogue. Before you buy, read hands-on reviews and, where you can, play it. Full methodology.

AudioFu earns a commission when you buy through our Thomann links. It never changes the order — the index does.

Demand40%
How many of this exact model are for sale on Reverb right now — what musicians actually buy and resell.
Lineup20%
How many finishes Thomann stocks — makers expand the models that sell.
Price15%
Where the price has moved since we started tracking in August.
Specs15%
How completely the maker documents it.
Maker10%
How deep the brand’s range is in this category.

Questions

What's the difference between a 2-pole and 4-pole filter?

Generally, more poles mean a steeper cutoff slope and more resonance. A 4-pole filter will have a more dramatic effect and potentially more self-oscillation. But a 2-pole can be more subtle and musical, especially in parallel configurations.

Can I use a filter module as an oscillator?

Absolutely! When you crank the resonance high enough, many filters will self-oscillate, producing a sine wave-like tone. This is a common technique for creating unique soundscapes and drones.

What's the best filter for bass?

It depends on the bass sound you want. A ladder filter with a smooth resonance can create a classic Moog-style bass. A state-variable filter offers more precise control over phase and harmonic content. Experiment! Don't be afraid to drive the input a little for some grit.

I'm overwhelmed by the options. Where should I start?

Start with a versatile multimode filter - something with a few different topologies and decent modulation options. Then, dive deep into its capabilities. Don't buy a dozen filters at once.

Is saturation always a good thing?

Not always. Too much saturation can make a sound muddy and indistinct. It's about finding the sweet spot where it adds character and warmth without masking the underlying tone. Use your ears!