CC1v2

Grimm Audio CC1

Grimm Audio’s CC1v2 was developed as a low jitter reference clock for professional studios but audiophiles discovered it was also a great device for cleaning up the digital audio path between their source and DAC. In addition, a music source with word clock input can benefit from slaving it to the CC1. Now, ultimate musical timing and stability of tone is in reach of any caring audiophile.

“Owing to a radically redesigned discrete crystal oscillator, clock stability betters that of even the best test equipment available.”

Grimm Audio’s extensive research into the correlation between jitter and sound quality brought to light that emotional response to music is vastly more sensitive to jitter than previously realized. Attention turned from “making jitter low” to achieving the most stable clock possible. This research turned up a surprising array of previously underestimated performance factors like power supply noise, oscillator control circuit noise and low-level crosstalk. Owing to a radically redesigned discrete crystal oscillator, clock stability betters that of even the best test equipment available.

To sync to an external reference the CC1 sports a PLL offering an astounding 90dB of jitter suppression at 10Hz, further improving at 60dB/dec. The CC1 offers base rates of 44.1kHz and 48kHz and 1/2/4 multiples in separately selectable groups, in addition to an AES/EBU reclocker for cleaning the digital feed to your DA converter. Like all Grimm Audio products, the CC1 features striking styling and solid build quality.

The CC1 has 16 BNC word clock outputs
I am absolutely delighted with the improvements that your CC2 is making with my mastering chain. Thank you for such excellence!

Graemme Brown, Zen Mastering, Gabriola (CC2)

Grimm Audio CC1 / CC2
2021-03-01T20:49:08+00:00

Graemme Brown, Zen Mastering, Gabriola (CC2)

I am absolutely delighted with the improvements that your CC2 is making with my mastering chain. Thank you for such excellence!
I did some sessions in 44.1, 48 and 96. It works great, and sounds fantastic. The CC1 is such a great upgrade in the studio, amazing!

Samuel Girardin, Point d'Orgue, Montreal (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:19:34+00:00

Samuel Girardin, Point d'Orgue, Montreal (CC1)

I did some sessions in 44.1, 48 and 96. It works great, and sounds fantastic. The CC1 is such a great upgrade in the studio, amazing!
It was as if a veil was lifted from the mix: clarity, punch, depth, stereo image, everything improved.

Matthijs Kievit, Studio Joneski, Utrecht (CC2)

Grimm Audio CC1 / CC2
2018-08-22T17:19:47+00:00

Matthijs Kievit, Studio Joneski, Utrecht (CC2)

It was as if a veil was lifted from the mix: clarity, punch, depth, stereo image, everything improved.
I had a client ask why my mixes were so much better this week.

John Davis, The Bunker Studio, New York (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:20:00+00:00

John Davis, The Bunker Studio, New York (CC1)

I had a client ask why my mixes were so much better this week.
The CC1 brings out a level of detail and clarity that I had dismissed as only possible with analog.

John Davis, The Bunker Studio, New York (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:20:12+00:00

John Davis, The Bunker Studio, New York (CC1)

The CC1 brings out a level of detail and clarity that I had dismissed as only possible with analog.
My most impressive upgrade so far!

Puck Leek, Pucksound, Amsterdam (CC2)

Grimm Audio CC1 / CC2
2018-11-29T17:20:23+00:00

Puck Leek, Pucksound, Amsterdam (CC2)

My most impressive upgrade so far!
I could always hear improvements in sound quality.

Marnix Bosman, Interface magazine, Amsterdam (CC2)

Grimm Audio CC1 / CC2
2018-11-29T17:20:33+00:00

Marnix Bosman, Interface magazine, Amsterdam (CC2)

I could always hear improvements in sound quality.
During our sessions with Grammy winning saxophonist Kenny Garrett, the CC1 made all the difference in the world!

Al Pryor & Todd Whitelock, Mack Avenue records, Hempstead (CC1)

Grimm Audio CC1 / CC2
2012-06-13T17:20:44+00:00

Al Pryor & Todd Whitelock, Mack Avenue records, Hempstead (CC1)

During our sessions with Grammy winning saxophonist Kenny Garrett, the CC1 made all the difference in the world!
It seems as if the musicians have more fun when they play music.

Ingo Iebhart, hifi enthusiast, Eberdingen (CC1)

Grimm Audio CC1 / CC2
2010-03-17T17:20:54+00:00

Ingo Iebhart, hifi enthusiast, Eberdingen (CC1)

It seems as if the musicians have more fun when they play music.
Suddenly and distinctly, there's a palpable increase in naturalness, extension and spaciousness.

Nicholas Bedworth, Positive Feedback, Makawao (CC1)

Grimm Audio CC1 / CC2
2009-09-14T17:21:05+00:00

Nicholas Bedworth, Positive Feedback, Makawao (CC1)

Suddenly and distinctly, there's a palpable increase in naturalness, extension and spaciousness.
I had expected a small sound improvement. What happened is just the opposite: I am very impressed.

Gerd Hoppe, hifi enthusiast, Alicante (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:21:14+00:00

Gerd Hoppe, hifi enthusiast, Alicante (CC1)

I had expected a small sound improvement. What happened is just the opposite: I am very impressed.
A signal that sounds pretty decent with a good clock, sounds just incredible with the Grimm Clock.

Hay Zeelen, Hay Zeelen Mastering, Amsterdam (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:21:26+00:00

Hay Zeelen, Hay Zeelen Mastering, Amsterdam (CC1)

A signal that sounds pretty decent with a good clock, sounds just incredible with the Grimm Clock.
After installing your CC1, I often catch myself thinking that I listen to 88.2 when in reality it is 44.1. Their difference used to be much larger, and both sound much better now.

Reyn Ouwehand, Studio The Church, Wijdenes (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:21:37+00:00

Reyn Ouwehand, Studio The Church, Wijdenes (CC1)

After installing your CC1, I often catch myself thinking that I listen to 88.2 when in reality it is 44.1. Their difference used to be much larger, and both sound much better now.
We are very impressed by the quality of this unit.

Günther Pauler, Pauler Acoustics, Northeim (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:21:47+00:00

Günther Pauler, Pauler Acoustics, Northeim (CC1)

We are very impressed by the quality of this unit.
The reviews I read are good, but to me what I experienced in our system was greater.

Aaron Gandia, Phat Planet Studios, Orlando (CC1)

Grimm Audio CC1 / CC2
2013-10-16T17:21:58+00:00

Aaron Gandia, Phat Planet Studios, Orlando (CC1)

The reviews I read are good, but to me what I experienced in our system was greater.
I didn't know clock influence was that big!

Tim Vine-Lott, Air studios, London (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:22:10+00:00

Tim Vine-Lott, Air studios, London (CC1)

I didn't know clock influence was that big!
Last week I was recording a strings section and piano. My client was very happy and he asked me if I changed something in the studio. Of course, it was your CC1.

Josep Umbria, Calma Estudis, Manacor (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:22:23+00:00

Josep Umbria, Calma Estudis, Manacor (CC1)

Last week I was recording a strings section and piano. My client was very happy and he asked me if I changed something in the studio. Of course, it was your CC1.
Its job is so critical that I’d never settle for less.

Richard Chycki, Toronto (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:22:34+00:00

Richard Chycki, Toronto (CC1)

Its job is so critical that I’d never settle for less.
The CC1 is a brilliantly designed piece of equipment. Every piece of gear that I plugged into it sounded better and more natural.

Erik Zobler, Mix Magazine, Los Angeles (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:22:50+00:00

Erik Zobler, Mix Magazine, Los Angeles (CC1)

The CC1 is a brilliantly designed piece of equipment. Every piece of gear that I plugged into it sounded better and more natural.
I was impressed by how my chain with the EMM's got a benefit when I added a Grimm clock to my setup. Guided by what the literature and many designers are saying I was still stunned about the change (in a positive way) in sound.

Daniel Dettwiler, Idee und Klang Studio, Basel (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:23:02+00:00

Daniel Dettwiler, Idee und Klang Studio, Basel (CC1)

I was impressed by how my chain with the EMM's got a benefit when I added a Grimm clock to my setup. Guided by what the literature and many designers are saying I was still stunned about the change (in a positive way) in sound.
The jitter measurement results of the CC1 were the best of all competitors.

Friedemann Kootz, Studio Magazin, Oberhausen (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:23:14+00:00

Friedemann Kootz, Studio Magazin, Oberhausen (CC1)

The jitter measurement results of the CC1 were the best of all competitors.
I was in the opportunity to hear your CC1 unit and I have to say INCREDIBLE!

Carlos Imperatori, Producciones Tumbador, Caracas (CC1)

Grimm Audio CC1 / CC2
2009-11-24T17:23:23+00:00

Carlos Imperatori, Producciones Tumbador, Caracas (CC1)

I was in the opportunity to hear your CC1 unit and I have to say INCREDIBLE!
This clock is incredible. The detail and imaging from it are superior to anything we heard.

Allen Farmelo, Pink Noise magazine, Hopewell Junction (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:23:41+00:00

Allen Farmelo, Pink Noise magazine, Hopewell Junction (CC1)

This clock is incredible. The detail and imaging from it are superior to anything we heard.
This is a major improvement. We need much less eq on the high end, the low end sounds more solid and the punch on the snare is great. This clock is a large improvement, we were amazed.

Peter Riebeek, Studio 150, Amsterdam (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:23:51+00:00

Peter Riebeek, Studio 150, Amsterdam (CC1)

This is a major improvement. We need much less eq on the high end, the low end sounds more solid and the punch on the snare is great. This clock is a large improvement, we were amazed.
I buy and sell a lot of stuff, but the CC1 is not leaving the building.

Alex Abrash, AA Mastering, New York (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:24:01+00:00

Alex Abrash, AA Mastering, New York (CC1)

I buy and sell a lot of stuff, but the CC1 is not leaving the building.
Realize that not all timepieces are created equally. In this regard, the Grimm CC1 has no peer.

Bob Katz and Garrett Haines, TapeOp, Sacramanto (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:24:12+00:00

Bob Katz and Garrett Haines, TapeOp, Sacramanto (CC1)

Realize that not all timepieces are created equally. In this regard, the Grimm CC1 has no peer.
I'm in tears, listening to my own recordings.

Ben Zijlstra, Dutch Film & Television Academy, Amsterdam (CC1)

Grimm Audio CC1 / CC2
2018-11-29T17:24:23+00:00

Ben Zijlstra, Dutch Film & Television Academy, Amsterdam (CC1)

I'm in tears, listening to my own recordings.
Never before I heard immersion like this in the low frequency range

Chen Weichang, Hifi Review, Hongkong (CC1)

Grimm Audio CC1 / CC2
2019-03-01T10:55:18+00:00

Chen Weichang, Hifi Review, Hongkong (CC1)

Never before I heard immersion like this in the low frequency range
This is an addictive device that is poisonous and will poison everyone who listens to it!

Leo Yeh, My-HiEnd, Hongkong (CC1)

Grimm Audio CC1 / CC2
2019-02-03T13:57:44+00:00

Leo Yeh, My-HiEnd, Hongkong (CC1)

This is an addictive device that is poisonous and will poison everyone who listens to it!
Lately I've noticed my system wasn't sounding so great and found my CC2 was accidently turned off. Once I secured the power cord, turning on the unit, I happily noticed how much more vivid, dimensional, and natural everything sounded.

Mark Block, Los Angeles (CC2)

Grimm Audio CC1 / CC2
2018-11-19T12:37:09+00:00

Mark Block, Los Angeles (CC2)

Lately I've noticed my system wasn't sounding so great and found my CC2 was accidently turned off. Once I secured the power cord, turning on the unit, I happily noticed how much more vivid, dimensional, and natural everything sounded.
In many years I tried all brands of the world for a master clock. So far only the CC1 can really fulfill my wishes.

Terence Lai, SACD Production Center, Hong Kong (CC1)

Grimm Audio CC1 / CC2
2018-11-29T12:39:52+00:00

Terence Lai, SACD Production Center, Hong Kong (CC1)

In many years I tried all brands of the world for a master clock. So far only the CC1 can really fulfill my wishes.
What can I say... what a difference.

Michael Pfeiffer Strauss, Erftstadt (CC1)

Grimm Audio CC1 / CC2
2017-03-09T13:10:09+00:00

Michael Pfeiffer Strauss, Erftstadt (CC1)

What can I say... what a difference.
We did a shoot-out and went with the Grimm Audio CC1, because it sounded the best.

John Hanlon, Neil Young - The Monsanto Years (CC1)

Grimm Audio CC1 / CC2
2016-03-08T13:28:50+00:00

John Hanlon, Neil Young - The Monsanto Years (CC1)

We did a shoot-out and went with the Grimm Audio CC1, because it sounded the best.
This is a larger improvement than I expected. The sound actually gains quality in all aspects.

Marnix Bosman, HVT magazine, Baarn (CC1)

Grimm Audio CC1 / CC2
2010-02-15T15:55:34+00:00

Marnix Bosman, HVT magazine, Baarn (CC1)

This is a larger improvement than I expected. The sound actually gains quality in all aspects.
From the first minute I knew that something very special was happening. (...) The quality surpasses everything I heard before on my system.

Gerard Lombrez, Lille (CC1)

Grimm Audio CC1 / CC2
2012-08-16T15:58:20+00:00

Gerard Lombrez, Lille (CC1)

From the first minute I knew that something very special was happening. (...) The quality surpasses everything I heard before on my system.
I was focusing more on the music than the equipment, something that rarely happens when I listen to digital...

Tony Bolton, Hi-fi World, London (CC1)

Grimm Audio CC1 / CC2
2009-10-14T15:59:33+00:00

Tony Bolton, Hi-fi World, London (CC1)

I was focusing more on the music than the equipment, something that rarely happens when I listen to digital...
Throughout even the most turbulent passages the recording space stays luxuriously illuminated and the soundstage remains absolutely clear.

Reinhold Martin, Hifi Statement Net Magazine, Gröbenzell (CC1)

Grimm Audio CC1 / CC2
2011-05-25T16:05:36+00:00

Reinhold Martin, Hifi Statement Net Magazine, Gröbenzell (CC1)

Throughout even the most turbulent passages the recording space stays luxuriously illuminated and the soundstage remains absolutely clear.
Instruments and voices sound more natural and the stereo image and ambience is clearer. It’s almost frighteningly lifelike…

Hans Beckeringh, Zwolle (CC2)

Grimm Audio CC1 / CC2
2020-04-10T13:41:54+00:00

Hans Beckeringh, Zwolle (CC2)

Instruments and voices sound more natural and the stereo image and ambience is clearer. It’s almost frighteningly lifelike…
Overall, the stereo field seems much improved and my ears are less fatigued after the session.

Spencer Ramzel, Blackbuck Recording Haus, South Texas (CC2)

Grimm Audio CC1 / CC2
2019-04-29T22:29:26+00:00

Spencer Ramzel, Blackbuck Recording Haus, South Texas (CC2)

Overall, the stereo field seems much improved and my ears are less fatigued after the session.
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Grimm Audio CC1 / CC2
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CC1v2 Features

  • ultra-low jitter clock source
  • 16 word clock outputs
  • AES/EBU reclocking
  • sample rates from 44.1kHz up to 192kHz
  • two independent sample rate groups
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