AudioFu Chart · November 2026
Best Synchronizers and Clock Generators for Advanced 2026
The top pick is Mutec REF 10 black ($4,149). RME HDSP 9632 PCI Digital Audio Card gives you the most for the money at $122. Antelope Isochrone 10MX leads the high end. Ranked by the AudioFu Index from 18 models across 13 brands, prices checked every night.
Last updated: November 3, 2026
Top 10
Full detail for the 10 highest AudioFu Index scores. Every other model is listed below.
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The Mutec REF 10 black is a serious piece of kit for studios prioritizing absolute timing accuracy. It's a game-changer for critical recording and mastering applications where jitter can be a real problem – think film scoring, high-resolution audio work, or any situation demanding pristine digital timing. If you’re chasing the absolute lowest jitter possible, this is a top contender.
Pros
- Exceptional phase noise performance minimizes digital audio artifacts.
- Galvanic isolation prevents ground loops and signal contamination.
- Robust build quality with premium internal components ensures longevity.
Cons
- Premium-priced, represents a significant investment for most studios.
- Large footprint demands considerable rack space.
49AudioFu
IndexStablesince Aug 17$4,148 · Aug 17$4,149 now$4,149€3,699 at Thomann · in stockCheck price ↗ -
- Size19"
- Weight2.8 kg
This clock is a solid choice if you need reliable timing for many devices at once. The built-in backup power means it won't fail during a power surge, which keeps your sessions safe. It packs ten sync outputs plus digital audio lines into a sturdy 1U case. Perfect for studios that want a single master clock to run everything without extra cables.
Pros
- Redundant AC and DC power ensures maximum operational safety
- Sturdy mechanical construction fits in a premium 1U rack case
- Ten BNC outputs provide ample sync options for large setups
Cons
- No sample rate conversion capabilities are listed in the text
- Physical dimensions are large for a single clock generator unit
48AudioFu
IndexStableno change since Aug 17Aug 17$7,289 now$7,289€6,499 at Thomann · in stockCheck price ↗ -
- Size19"
- Weight3.3 kg
This device keeps your studio's picture and sound locked together perfectly. Its special quartz crystal ignores temperature changes so your timing stays rock solid. It works with many different cameras and digital audio gear, making it great for big broadcast rooms. Perfect for pros who need reliable timing without worrying about drift.
Pros
- Temperature-stabilised quartz keeps time steady in any room
- Handles many video and audio formats easily
- Four video sync outputs for flexible setups
Cons
- No specific weight listed makes handling unknown
- Price is high compared to basic clock units
46AudioFu
IndexStableno change since Aug 17Aug 17$3,812 now$3,812€3,399 at Thomann · in stockCheck price ↗ -
- Weight2.65 kg
The Antelope OCX HD is a serious tool for professional recording studios and hybrid environments where tight timing is critical. Its AFC jitter reduction is genuinely impressive, bringing a noticeable clarity to your recordings. If you’re battling timing issues across multiple devices, this is a worthwhile investment to clean things up.
Pros
- Exceptional jitter management via AFC delivers pristine timing.
- Oven-controlled crystal oscillator ensures rock-solid clock stability.
- Multiple outputs cater to complex studio setups with ease.
Cons
- Premium-priced, a significant investment for smaller studios.
- Size and weight make rack mounting a consideration.
69AudioFu
IndexStablesince Aug 17$1,962 · Aug 17$1,962 now$1,962€1,749 at Thomann · in stockCheck price ↗ -
- Weight4.45 kg
The Sync X is a powerhouse for serious Pro Tools Ultimate users needing tight, reliable synchronization – especially in complex hybrid audio/video environments. It’s a no-compromise solution for facilities where timing accuracy is paramount, though its cost and size make it less suitable for smaller setups. Think large post houses, broadcast facilities, and high-end studios.
Pros
- Rock-solid timing foundation for complex Pro Tools Ultimate workflows
- Integrated video reference generator simplifies video sync tasks
- Comprehensive connectivity handles a vast array of clock and video signals
Cons
- Premium-priced, a significant investment for smaller studios
- Size and weight (nearly 10 lbs) require dedicated rack space
39AudioFu
IndexStableno change since Aug 17Aug 17$4,261 now$4,261€3,799 at Thomann · in stockCheck price ↗ -
- Size19"
- Weight1.2 kg
This unit acts as the heartbeat for your entire studio, locking time from GPS to your Dante or AVB network. It speaks many different languages, so it fits old and new systems alike. It is best for crews running professional video or broadcast shows where every millisecond counts.
Pros
- Built-in GNSS receiver locks time with extreme precision for broadcast.
- Handles PTPv2 grandmaster and boundary clock roles in one unit.
- Works with SMPTE 2110, AES67, Dante, and AVB networks seamlessly.
Cons
- Heavy metal chassis may be difficult to move in tight studios.
- Lacks dedicated hardware faders or knobs for manual time adjustments.
48AudioFu
IndexStableno change since Oct 17Oct 17$2,354 now$2,354€2,099 at Thomann · in stockCheck price ↗ -
- Size9.5"
The Mutec MC-3+ is a serious piece of kit for the discerning audiophile or studio professional. Its re-clocking and digital switching capabilities offer a significant upgrade in audio quality and flexibility, especially when paired with high-resolution digital sources. This is for the user who demands the absolute cleanest signal and is comfortable diving into the technical details.
Pros
- Immaculate build quality with solid aluminum chassis & robust internal components
- Mutec’s 1G Clock technology demonstrably reduces jitter for cleaner audio
- REVIVE re-clocking noticeably improves detail and transient response
Cons
- Premium-priced, a significant investment for most home studios
- Complex feature set requires technical understanding to fully utilize
53AudioFu
Index↑ 8.4%since Aug 17$1,334 · Aug 17$1,446 now$1,446€1,289 at Thomann · in stockCheck price ↗ -
Black Lion Audio Revolution Clock Mini
Revolution Clock XC · Black Lion Audio
7 for sale on Reverb2 finishes at Thomann
- Size19"
- Weight2.49 kg
This clock generator is perfect for studios needing precise timing without extra equipment. Its patented technology keeps audio steady while the dimmable screen makes setup easy. It fits in a standard rack but needs a separate power brick to run. Choose this unit if you want a reliable, all-in-one solution for your mixing chain.
Pros
- Patented Macro-MMC technology simplifies complex clock management
- MEMS oscillator delivers ultra-low jitter at 0.5 ps RMS
- Eight selectable sample rates cover all professional needs
Cons
- Requires separate external power supply instead of built-in
- Lock function prevents accidental sample rate changes
77AudioFu
Index↓ 1.7%since Aug 17 · lowest so far$1,345 · Aug 17$1,322 now$1,322€1,179 at Thomann · in stockCheck price ↗ -
- Weight0.91 kg
This little box keeps your gear locked in tight with rock-solid timing. Its sturdy build means it survives the road, and the low jitter keeps your audio clean. It needs a power cord, but the size makes it easy to fit anywhere.
Pros
- Patented Macro-MMC technology cuts jitter to 0.5 ps RMS
- Robust tour-ready housing handles heavy road conditions
- Three BNC outputs sync external devices easily
Cons
- Requires external 9V power supply instead of built-in
- No USB or MIDI control interfaces mentioned
64AudioFu
Index↓ 1.2%since Aug 17 · lowest so far$369 · Aug 17$365 now$365€325 at Thomann · in stockCheck price ↗ -
The WCM HDSP 9632 is a no-nonsense clocking solution if you're already invested in the RME HDSP ecosystem. It's a simple, reliable way to clean up your clocking and minimize jitter – perfect for serious recording studios prioritizing stability and precise synchronization between devices.
Pros
- Galvanic isolation eliminates ground loops reliably.
- Compact design saves valuable rack space.
- RME's rock-solid clocking ensures pristine sync.
Cons
- Limited to RME HDSP series – not universal clocking.
- BNC connectors require specific cabling and adapters.
42AudioFu
IndexStableno change since Aug 17Aug 17$122 now$122€109 at Thomann · in stockCheck price ↗
All 18 synchronizers and clock generators
Same index, same nightly prices — compact. Colour options of one model share a row. Tap a photo to zoom.
- 11
Sim'n Tonic Nome IISim'n Tonic40↓ 1.7%$264€235$264€235Check ↗
- 12
Sonifex Redbox RB-DDA6WSonifex39Stable$806€719$806€719Check ↗
- 13
Tentacle Sync Sync E mkIITentacle Sync33Stable$223€199$223€199Check ↗
- 14
Rosendahl MIF4Rosendahl33Stable$993€885$993€885Check ↗
- 15
Doepfer MSY2Doepfer31Stable$94€84$94€84Check ↗
- 16
Walrus Audio Canvas MIDI ClockWalrus Audio31Stable$361€322$361€322Check ↗
- 17
Floatingpoint Instruments multiclockFloatingpoint Instruments31Stable$637€568$637€568Check ↗
- 18
Tentacle Sync Sync E mkII Double SetTentacle Sync20Stable$391€349$391€349Check ↗
Synchronizers and Clock Generators by the numbers
Measured across all 25 models we track, not a sample.
Median $1,120 — half of all synchronizers and clock generators here cost less.
median of 10 models · 0.9 kg–4.45 kg
median of 9 models · 9.5"–19"
How to choose the best synchronizers and clock generators
Clock Accuracy & Jitter
This is the big one. Low jitter means tighter timing and fewer phasing issues. You'll hear it as a more cohesive and punchy sound, especially in drums and percussion. A tiny amount of jitter can ruin a tight groove - it's not something to skimp on.
Multiple Outputs & Routing
Advanced players often have a sprawling signal chain. You need a clock generator that can handle multiple outputs (AES/EBU, S/PDIF, Word Clock) and flexible routing options to accurately sync everything - from your outboard gear to your hardware synths.
Word Clock Stability & Range
A stable clock signal is crucial. The wider the acceptable range of incoming clock signals, the more forgiving it is when dealing with slightly inaccurate sources. This is especially important in live situations where clock sources can be unpredictable.
MIDI Clock Flexibility
Beyond simple sync, advanced MIDI clock features like MIDI Time Code (MTC) support, adjustable MIDI clock divisions, and the ability to send/receive MIDI clock messages are vital for complex sequencing and synchronization tasks. Think controlling external devices or syncing to film.
Phase Alignment & Compensation
This is where things get truly sophisticated. Accurate phase alignment between digital outputs is critical for avoiding comb filtering and maintaining a consistent stereo image. Compensation features let you dial in slight timing adjustments to perfectly align different devices.
Buying guide
Alright, let's talk clocking. You're past the days of just plugging your interface into your DAW and hoping for the best. If you're layering complex drum tracks, syncing multiple synths, or even just trying to get tight timing across a large ensemble, a solid synchronizer and clock generator isn't a luxury - it's essential. We're not talking about basic MIDI sync here; we're diving deep into features that'll actually improve your workflow and the tightness of your recordings.
Don't fall for the "more features" trap. A clock generator with a million knobs you don't understand is useless. Invest in accuracy and stability first, then look for the routing and MIDI features you actually need.
Cheaper units often cut corners on jitter reduction, which will be noticeable in critical listening. Spending a bit more upfront will save you headaches (and potential re-recordings) down the line.
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 25 synchronizers and clock generators 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 clock generator and a synchronizer?
A clock generator creates a timing signal. A synchronizer receives and distributes that signal, often with additional features like phase alignment. Many units combine both functions, but understanding the distinction is helpful.
How much jitter is 'acceptable'?
That's subjective, but anything above 50ns of jitter is generally audible, especially in demanding applications like drum recording. Lower is always better, but diminishing returns kick in quickly.
Can I use a basic audio interface as a clock generator?
Sure, but it's often not ideal. Consumer-grade interfaces often have higher jitter than dedicated clock generators. Using a dedicated generator cleans up your timing and can improve overall sound quality.
I'm using all-in-the-box plugins. Do I still need a clock generator?
Even with purely digital setups, a dedicated clock generator can improve timing accuracy and reduce noise. It's like cleaning up your power supply - it's a subtle but noticeable improvement.
What's the deal with 'long-frame lock'?
Long-frame lock allows the generator to maintain synchronization even with intermittent clock signals, which is invaluable for live performances or situations with unreliable clock sources. It prevents sudden timing jumps that can ruin a take.
