AudioFu Chart · November 2026
Best Oscillator Modules Under $500 2026
The top pick is 4MS Ensemble Oscillator ($367). Behringer MDX2600 Composer Pro-XL Compressor / Limiter gives you the most for the money at $44. Ranked by the AudioFu Index from 53 models across 23 brands, prices checked every night.
Last updated: November 4, 2026
Top 10
Full detail for the 10 highest AudioFu Index scores. Every other model is listed below.
-
The 4ms Ensemble is a seriously unique oscillator – it’s not just about creating tones, but entire harmonic landscapes. Perfect for experimental musicians and sound designers looking to create evolving, complex textures, especially those who enjoy a hands-on, CV-driven workflow. It's a deep dive into sound design, not a simple plug-and-play module.
Pros
- Exceptional polyphony allows for lush, complex textures rarely achievable.
- Scale selection simplifies melodic creation and experimentation immensely.
- CV control over nearly every parameter fosters deep sonic exploration.
Cons
- Limited waveform choices necessitate external processing for broader sounds.
- Steep learning curve; requires understanding of modular synthesis principles.
74AudioFu
IndexStableno change since Aug 17Aug 17$367 now$367€328 at Thomann · in stockCheck price ↗ -
Doepfer A-110-4 QZVCO Quadrature Thru Zero VCO
A-110-4 Thru Zero Quad VCO · Doepfer
7 for sale on Reverb2 finishes at Thomann
This oscillator makes sine and cosine waves at the same time. You get linear and exponential control sections, plus controllers for XTune, XFM, LFrq and LFM. It suits you if you already have a modular rack and want an oscillator that outputs two matching waveforms at once.
Pros
- Generates sine and cosine waveforms at the same time
- Waveforms are terminated when linear control voltage reaches 0 V
- Offers both linear and exponential control sections
Cons
- Needs a power supply drawing 90 mA
73AudioFu
IndexStableno change since Aug 17Aug 17$155 now$155€139 at Thomann · in stockCheck price ↗ -
This is a voltage controlled oscillator that covers about 8 octaves and gives you four waveforms at once. It suits you if you are building a modular system from the A-100 range and want a sound source you can control with voltage. You can set the pulse width by hand, by voltage, or modulate it, so the pulse wave can change over time.
Pros
- Produces a frequency range of about 8 octaves from one module
- Outputs four waveforms at the same time: pulse, sawtooth, triangle and sine wave
- Frequency is set by a range switch, a tune control and control voltages at the CV inputs
Cons
- Needs +12V and -12V power, drawing +90 mA and -20 mA
73AudioFu
IndexStableno change since Aug 17Aug 17$173 now$173€155 at Thomann · in stockCheck price ↗ -
Behringer MDX2600 Composer Pro-XL Compressor / Limiter
2600-VCO · Behringer
16 for sale on Reverb1 finish at Thomann
This is an analogue oscillator for a Eurorack modular rig. It gives you four waveform outputs and a frequency range that reaches down into low-frequency territory, so it can also serve as a modulation source. Its three FM inputs each have an attenuator, and the keyboard CV input follows the 1V/oct. standard. It suits you if you are building a modular setup and want an affordable oscillator to start with.
Pros
- Analogue VCO covering 10 Hz to 10 kHz, plus a low-frequency mode down to 0.03 Hz
- Outputs for triangle, sawtooth, sine and pulse waveforms
- Three FM inputs, each with its own attenuator
Cons
- Takes 16 U of panel width, so it needs a good chunk of rack space
-
Doepfer A-111-3 uPVCO Micro Precision VCO / VCLFO
A-111-3 · Doepfer
12 for sale on Reverb1 finish at Thomann
You get a small module that works as either an oscillator or a low frequency oscillator, so you can switch its job as you need. It is 4 HP wide and 65 mm deep, which saves room in a modular case. It suits you if you build a modular system and want a flexible module without taking up much space.
Pros
- Switches between LFO and VCO modes, so one module covers two jobs
- Tune range changes by jumper, reaching 16 Hz to 20 kHz in position 1
- Compact 4 HP width fits tight modular cases
Cons
- Without a jumper, the Tune range only reaches 16 Hz to 22 Hz
71AudioFu
IndexStableno change since Aug 17Aug 17$178 now$178€159 at Thomann · in stockCheck price ↗ -
Endorphin.es Furthrrrr Generator Eurorack Synth Module
Furthrrrr Generator · Endorphin.es
17 for sale on Reverb1 finish at Thomann
This is a dual oscillator module for a Eurorack setup, built on an analog signal path and inspired by the Buchla Modular Synthesizer. You get sine, sawtooth and square waveforms, a noise output, and soft and hard sync inputs. It suits you if you want two oscillators you can control with CV and sync inside a modular rig.
Pros
- Dual VCO design gives two oscillators in one module
- Analog signal path, inspired by the Buchla Modular Synthesizer
- Sine, sawtooth and square inputs and outputs, plus a noise output
Cons
- Up to 26 mm depth needs clearance behind your Eurorack case
70AudioFu
IndexStableno change since Aug 17Aug 17$468 now$468€419 at Thomann · in stockCheck price ↗ -
The XPO is a truly unique oscillator – it's not just about generating waveforms, it’s about crafting complex, evolving stereo textures. Perfect for sound designers, experimental musicians, or anyone looking to add a real sense of depth and movement to their modular patches; it's a serious creative tool.
Pros
- Exceptional stereo imaging creates a remarkably wide and immersive soundscape.
- The 'Centre' control provides unique, organic timbral shifts.
- FM and Hard Sync inputs offer extensive sonic sculpting possibilities.
Cons
- The complex routing can be initially overwhelming for beginners.
- Power consumption is relatively high, demanding a robust PSU.
69AudioFu
IndexStableno change since Aug 17Aug 17$334 now$334€299 at Thomann · in stockCheck price ↗ -
EarthQuaker Devices The Wave Transformer Eurorack Moduler
The Wave Transformer · EarthQuaker Devices
18 for sale on Reverb1 finish at Thomann
The Wave Transformer is a fantastic little oscillator – really shines if you're into sculpting complex, evolving sounds. Its micro-tuning and wavefolding are top-notch, making it perfect for experimental sound design and anyone wanting to move beyond basic synth tones. It's a great entry point to more advanced oscillator concepts.
Pros
- Exceptional wavefolding capabilities create uniquely complex, evolving tones.
- Micro-tuning control unlocks subtle, expressive pitch variations.
- Flexible FM and sync options expand sonic palette beyond basic waveforms.
Cons
- Limited waveform selection compared to some higher-end oscillator modules.
- Power draw could be restrictive in smaller, power-constrained racks.
68AudioFu
IndexStableno change since Aug 17Aug 17$267 now$267€239 at Thomann · in stockCheck price ↗ -
Endorphin.es Furthrrrr Generator Eurorack Synth Module
BLCK_Furthrrrr Generator · Endorphin.es
17 for sale on Reverb1 finish at Thomann
The BLCK_Furthrrrr Generator is a seriously cool module for anyone chasing that Buchla vibe – it's all about weird, evolving textures and complex tones. Its analog signal path and sync capabilities open up a lot of sonic possibilities, but it’s definitely a module for those who want to dive deep into synthesis and aren’t afraid of a little complexity.
Pros
- Buchla-inspired architecture delivers uniquely complex timbres
- Screwed potentiometers offer exceptional resistance and feel
- Dual VCO design enables rich, evolving modulation possibilities
Cons
- Screwed pots can be a bit stiff initially, requiring break-in
- Limited waveform selection compared to more versatile oscillators
-
The STO is a seriously useful little oscillator, especially if you're building a modular around deep bass and evolving tones. Its core sine wave is gorgeous, and the sub oscillator really packs a punch. Perfect for ambient sound designers, experimental musicians, or anyone wanting a solid foundation for complex modulation.
Pros
- Warm, rich sine wave foundation for evolving soundscapes
- Sub oscillator delivers genuinely powerful and deep low-end
- Linear FM input offers surprising complexity and tonal variation
Cons
- Variable waveform shaping can be a bit fiddly to dial in precisely
- Limited waveform selection compared to more complex oscillators
66AudioFu
IndexStableno change since Aug 17Aug 17$252 now$252€225 at Thomann · in stockCheck price ↗
All 53 oscillator modules
Same index, same nightly prices — compact. Colour options of one model share a row. Tap a photo to zoom.
- 11
Erica Synths Pico VCOErica Synths64Stable$132€118$132€118Check ↗
- 12
Erica Synths Graphic VCOErica Synths64Stable$323€289$323€289Check ↗
- 13
Befaco Even VCO Eurorack Synthesizer ModuleEven VCO · Befaco61Stable$222€199$222€199Check ↗
- 14
Befaco Octaves VCO Eurorack Synthesizer ModuleOctaves VCO · Befaco61Stable$256€229$256€229Check ↗
- 15
Behringer 112 Dual VCO Eurorack Synthesizer Module112 Dual VCO · Behringer60Stable$61€55$61€55Check ↗
- 16
Behringer 921A Oscillator Driver Eurorack Synthesizer Module921 VC Oscillator · Behringer60Stable$73€65$73€65Check ↗
- 17
Joranalogue Audio Design Generate 3Joranalogue Audio Design59Stable$389€348$389€348Check ↗
- 18
Erica Synths Pico VCO2Erica Synths58Stable$129€115$129€115Check ↗
- 19
Doepfer A-110-2Doepfer · 2 finishes58Stable$140€125$140€125Check ↗
- 20
Erica Synths Pico VCO2Black VCO2 · Erica Synths58Stable$297€266$297€266Check ↗
- 21
Doepfer A-111-4 Quad VCOA-111-4 · Doepfer58Stable$446€399$446€399Check ↗
- 22
Intellijel Designs PlonkIntellijel Designs57Stable$390€349$390€349Check ↗
- 23
BASTL Instruments PizzaPizza · Bastl Instruments56Stable$345€309$345€309Check ↗
- 24
Joranalogue Audio Design Cycle 5Joranalogue Audio Design55Stable$222€199$222€199Check ↗
- 25
Befaco Pony VCF Eurorack Synthesizer ModulePony VCO · Befaco55Stable$248€222$248€222Check ↗
- 26
Intellijel Designs Dixie II+Intellijel Designs55Stable$273€244$273€244Check ↗
- 27
Doepfer A-110-6 TTZQ VCOA-110-6 · Doepfer55Stable$278€249$278€249Check ↗
- 28
Doepfer A-111 VCO 2 High End Voltage Controlled OscillatorA-111-2 · Doepfer · 2 finishes54Stable$267€239$267€239Check ↗
- 29
Schlappi Engineering Angle GrinderSchlappi Engineering · 2 finishes54Stable$379€339$379€339Check ↗
- 30
Behringer 1004 Oscillator Eurorack ModuleOscillator Module 1004 · Behringer52Stable$60€54$60€54Check ↗
- 31
Klavis Twin Waves MKIIKlavis · 2 finishes51Stable$278€249$278€249Check ↗
- 32
Doepfer A-188-9Doepfer50Stable$155€139$155€139Check ↗
- 33
Doepfer A-113Doepfer50Stable$267€239$267€239Check ↗
- 34
Tiptop Audio Buchla Model 258tTiptop Audio49↓ 5.3%$221€198$221€198Check ↗
- 35
Behringer Victor Eurorack ModuleVictor · Behringer48Stable$64€57$64€57Check ↗
- 36
Behringer BrainsBehringer48Stable$99€89$99€89Check ↗
- 37
Tiptop Audio ATX1 VCOTiptop Audio46Stable$234€209$234€209Check ↗
- 38
Tiptop Audio VortexTiptop Audio46Stable$267€239$267€239Check ↗
- 39
Intellijel Designs VCO 1UIntellijel Designs44Stable$184€165$184€165Check ↗
- 40
Endorphin.es New GodspeedEndorphin.es44Stable$234€209$234€209Check ↗
- 41
XAOC Devices BerlinXAOC Devices44Stable$245€219$245€219Check ↗
- 42
Weston Precision Audio 2V2 Dual Analog OscillatorWeston Precision Audio44Stable$334€299$334€299Check ↗
- 43
Weston Precision Audio PA0 Phase Animated OscillatorWeston Precision Audio44Stable$334€299$334€299Check ↗
- 44
Weston Precision Audio HV1 Hybrid OscillatorWeston Precision Audio44Stable$435€389$435€389Check ↗
- 45
Rides In The Storm DOC MK2Rides In The Storm43Stable$106€95$106€95Check ↗
- 46
ADDAC 105 4 Voice ClusterADDAC43Stable$151€135$151€135Check ↗
- 47
Rides In The Storm BOC MK2Rides In The Storm43Stable$218€195$218€195Check ↗
- 48
ADDAC 701 Rev2 VCOADDAC43Stable$222€199$222€199Check ↗
- 49
Shakmat Modular Banshee ReachShakmat Modular41Stable$290€259$290€259Check ↗
- 50
Vostok Instruments SenaVostok Instruments41Stable$334€299$334€299Check ↗
Oscillator Modules by the numbers
Measured across all 60 models we track, not a sample.
Median $256 — half of all oscillator modules here cost less.
How to choose the best oscillator modules
Waveform Quality
A cheap oscillator can sound brittle or thin. We're listening for richness, harmonic content, and a pleasing sustain - especially on the saw and square waves. That thin, digital edge can be a real vibe-killer.
Tuning Stability
Nothing's worse than a module that drifts out of tune halfway through a song. We're checking for stability under temperature changes and with different patch configurations - a wandering oscillator is useless.
Modulation Capabilities
Can you modulate the pulse width? The FM input? A static oscillator is just a glorified tone generator. We're looking for flexibility and responsiveness to modulation sources.
Noise/Aliasing
Lower-cost oscillators sometimes have audible aliasing artifacts or unwanted noise. It's not always a dealbreaker, but it impacts the overall clean signal and can be a headache in a recording.
Build Quality/Panel Feel
Let's be honest, you're saving money, but the knobs should still feel decent and the panel shouldn't feel like it's going to crack if you look at it wrong. A flimsy build screams 'cheap' and can impact reliability.
Buying guide
So you're diving into modular synths and need an oscillator, but your bank account isn't screaming? Been there. Getting a decent oscillator doesn't require mortgaging your apartment anymore. We're focusing on modules under $500 that actually deliver usable sounds and won't leave you regretting your purchase-modules that can cut through a band mix or sound good in a recording, not just sit there quietly.
At this price point, you're almost always making trade-offs. Don't expect the creamy, vintage-inspired tone of a $1000 oscillator; you'll be looking at more digital or simpler analog designs. Watch out for modules that rely heavily on a single waveform - versatility is key.
Prioritize tuning stability over a million fancy features; a stable oscillator is the foundation of everything else.
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 60 oscillator 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
Are digital oscillators 'better' than analog oscillators?
Not necessarily. Digital oscillators can be incredibly clean and accurate, but they can sometimes lack the warmth and character of analog. It depends on what you're going for. A well-designed analog oscillator can have a pleasing grit or subtle harmonic complexity that's hard to replicate digitally.
What's FM synthesis and do I need it?
Frequency Modulation (FM) allows you to modulate the oscillator's frequency, creating complex and often harsh tones. It's a powerful sound design tool, but not essential for everyone. Some basic FM capability adds a lot of versatility even if you're not doing full-blown FM patches.
How much tuning drift is 'acceptable'?
Ideally, none. But realistically, a few cents over an hour is usually fine, especially if you're using a tuner. Anything more than that and it's a problem, particularly if you're playing live.
Can I use these oscillators for bass sounds?
Absolutely! With the right filtering and envelope shaping, many of these oscillators can produce deep, resonant bass tones. Just be mindful of aliasing - it can create unwanted harshness in the low end.
What's the difference between a VCO and an LFO?
A VCO (Voltage-Controlled Oscillator) is for producing tones. An LFO (Low-Frequency Oscillator) produces slow, repeating waveforms used for modulation - like vibrato or tremolo. They're different tools for different jobs.
