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Antelope Audio 10MX Atomic Clock

Rubidium atomic clock perfectly suited to recording, mixing and mastering environments supporting sampling rates up to 768 kHz

Product Description

Perhaps no other product in the modern studio world has defined the high-end better than Antelope's original 10M Atomic Clock.  The Antelope Audio 10MX continues this legacy in fine fashion by offering even more on-board 10MHz outputs and also now can output standard word clock rates, as well, up to a remarkable 768KHz.  10MX also features a new smaller atomic oscillator, which allowed Antelope to reduce the size of the 10MX to only 1U rack space at a fraction of the weight of the original 10M.  This newer oscillator and updated power supply offer even better sonic stability allowing for even better sound than ever before.  10MX also features a new software control panel for remote control of the 10MX clock rates and display brightness.


  • New smaller Rubidium atomic oscillator
  • Improved sonic stability over 10M
  • (10) 10MHz outputs on BNC connectors
  • (4) Standard WC outputs on BNC connectors
  • (2) each S/PDIF and AES outputs
  • On-board clock rates up to 768KHz
  • USB Control Panel
  • 1U rack space



"I have been so happy with my 10M clock that the last thing I wanted was a new clocking system.  Marcel (from Antelope Audio) kindly brought the new 10MX clock to my studio and it was a perfect time ear-wise as I was in the middle of a mix project.

I listened hard and intently to the first verse until the end of the first chorus on my 10M. It took Marcel several seconds to switch the system over to the new 10MX clock, and then I hit play on the same section of music.

I was quickly struck by how much more tone and note I was hearing out of everything. The song starts with acoustic guitar and a sidestick snare drum. It wasn't more low-end level that I was hearing, it was simply more of the music. The sidestick had more wood in it.  The vocal entered on the first verse with such perfect framing and confidence. All the high-end detail was still beautifully intact, yet a harshness that I didn't realize was there had now gone away.  It felt like I was hearing undertone harmonics that I'd never heard out of my Pro Tools system.

It's hard to quantify and communicate why we like music a certain way compared to another, but 2 comparisons come to mind to describe what I noticed on the new clock.

It's not dissimilar to the feeling I have when listening to Kind Of Blue from a high bit rate digital file and then putting the vinyl album on a great turntable through the same speakers.  In both scenarios, there is a depth of field and musicality that I wasn't hearing before.  There is simply more of the note. More tone. My ears feel more believability and trust. I enjoy listening more.

The second comparison is a visual one. Like so many things in life, once you experience a better version of the thing that you are used to, it's hard to turn back. When I finally upgraded my camera situation to something serious and then saw the difference in the photos of my kids, there was no turning back.  

I am always skeptical of anyone describing musical equipment as being better, or the best. It's something you need to hear with your own ears, but I know I can't live without making the new clock a part of my daily work life.  It is as important to me as what microphone I have on the lead vocal. It's unbelievable what clocking done right can do for your music."
- Greg Wells, multiple Grammy nominated musician, record producer and songwriter

“The difference was pretty incredible, I heard it with my own ears”.  Also he said “The sonic picture got clearer, there was less distortion in the top end.  It had less hash that I always contributed to lower sample rates, but I guess not, it was always due to the clocking.  I’m very impressed with 10MX.”
- Mick Guzauski, multi-platinum mixing and sound engineer

"I didn't think it was possible to improve the 10M and Trinity combination. I was reluctant to even listen. Yet, Antelope has done it! Again. The 10MX clarifies every nuance of sound and delivers an impact like you have never heard before”
- Brian Vibberts, multiple Grammy Award winning recording/mixing engineer

"Pure 2 + 10mx has improved the performance of all my digital gear in the room.  Feels like a sheet has been lifted off my speakers.  Can really hear the space in the delay and reverb decays.   Definitely been leading to betting mix decisions.  My analog gear is happy too, with an A/D that's truly worthy."
- Chris Godbey

Product Specifications

Condition New
Chassis 19-inch Rack-mount
Input Connectors BNC
Output Connectors AES/EBU XLR, BNC, S/PDIF Coaxial
Computer Connection USB
Maximum Sampling Rate 768 kHz

Product Reviews

5 out of 5 stars.
Review Count (2)

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Game Changer 👍🏻

By Sul K on November 25, 2020

Let's you hear things you normally couldn't hear with "regular" clocks. You can actually hear how low your 808's go! Worth the investment

By Jean P on November 19, 2020

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The best gear advice always comes from those who use it the most. That's where you come in! Let the pro audio world hear your voice with a review of the Antelope Audio 10MX Atomic Clock . Once you submit your review, please check your email and verify your address to have it posted.

How do you rate this product?
I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.
The speed of delivery exceeded my expectations! I was VERY pleased that my shipment arrived in time for a scheduled vocal tracking session. The packing insured that my order arrived safely. And the sales staff responded quickly to questions regarding the product.
James P.
Thank you so much! Vintage King has been so fair and easy to work with. I can't thank you enough. It feels good to trust such a hefty purchase to folks who are so helpful and knowledgeable. Vintage King is a sound designers dream store.
Noa L.
You guys have excellent customer service and I am excited about the next upgrade I complete on my fifth recording facility. I've been in the studio business for forty plus years. The salesman I worked with at Vintage King was the best of the best. You all rock!
Robby T.
I would recommend Vintage King to any one looking for top-class gear, unbeatable customer service and the best prices on the map!
Jake D.
My experience with Vintage King was excellent. The order was here fast considering it was out of stock. The sales person had SKB send it to me directly and I couldn't have been more pleased.
Michael D.
From the minute I placed my order I was kept well-informed through each step in your process. Even though I was buying a comparatively modest piece of gear, your attention to detail made me feel like I was purchasing a six-figure mixing desk.
Thomas W.
I am a new customer of yours. You guys provided me the absolute best deals in ordering all the equipment to power my brand new recording studio. Your customer service is amazing and i will always deal with you from here on out.
Rob M.
Thanks for your great service and getting this out today. You guys really are the Kings!
Alan B.
Better than expected! Truly impeccable service. Your team was professional, knowledgeable, provided speedy delivery above and beyond standard. Vintage King Audio is definitely my go to for all of my audio and information needs.
James O.