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Old 10-23-2019, 02:09 AM
priceless530 priceless530 is offline
Join Date: Nov 2014
Location: Burbank, CA
Posts: 8
Default Pro Tools 2019 Ultimate - Sonnet X-IIIR - HDX Card Freezing

Avid HDX Card located inside Sonnet X-IIIR (TB3 Edition) Freezes everyday randomly.

Scenario 1: After some time HDX card hard freezes during system playback.

1: System Preferences > Audio > Output > Avid HDX.
2: Open iTunes > Play Music for about 1-2 hours.
3: HDX Card stops playback eventually in middle of song.
4: Open System Preferences > Audio > Output > iMac Pro Speakers >> Music continues to play as normal.
5: Switching back to HDX Card does not fix problem. All applications including Pro Tools 2019.6 Ultimate will not function or operate unless other output is selected.
6: Restart iMac Pro > HDX Card continues working as normal for about 1-2 hours.

Scenario 2: After some time Pro Tool's playback engine refuses to stop for about 30 seconds and on many occasions will not stop playback unless I Force Quit. Oddly enough, Pro Tools continues to be responsive even though playback will not stop. Eventually an error message pops up saying Pro Tools can't stop playback. This happens more frequently when using the the video engine.

• Open Pro Tools 2019 | Ultimate > Load Session
• Pro Tools 2019 | Ultimate opens and works flawlessly for some time. Then out of now where in the middle of recording or playback audio engine drops out completely and Pro Tools Continues to show playback. Eventually it regains control and continues to work as normal. Sometimes I'm forced to restart in order for the HDX card to register again.

Technical Data:
Hardware: iMac Pro (14-Core - 32GB Ram) > Sonnet X-IIIR (TB3 Edition) > Avid MTRX > Avid S6 M40
Software Running: macOS Mojave 10.14.6 > Pro Tools 2019.6 | Ultimate > DADman > Genelec GLM3
Software Background: Dropbox > Eucon v4.4.3x101 > Avid Link 19.8 > WS Control
- Avid MTRX, recovery:
- HDX Card Version (R= 1.10.3 T= 1.02.4)
- Avid S6 M40 Version (

Any help the community can provide is appreciated. Thanks much!
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Old 10-23-2019, 03:37 AM
LDS LDS is offline
Join Date: Jul 2014
Location: Sydney, Australia
Posts: 651
Default Re: Pro Tools 2019 Ultimate - Sonnet X-IIIR - HDX Card Freezing

It's a known issue. Sonnet has apparently left it in Avid's hands, but Sonnet TB3 enclosures don't work with HDX. You can buy a TB2 card for $150(?) from Sonnet and it will have you up and running reliably.

Pro Tools Ultimate 2019.6. OSX 10.14.6. HDX. Avid Omni. MacBook Pro 2018. 6 Core i7. 32Gb. 4x mSata SSD Drives + 4x HDD. Blackmagic Intensity PCIe. ATI RX580. Sync HD

Free Lexicon 224XL Impulse Responses
Free Sony DPS-V77 Impulse Responses
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Old 10-23-2019, 03:45 AM
BScout BScout is offline
Join Date: Mar 2007
Location: Los Angeles, CA
Posts: 2,076
Default Re: Pro Tools 2019 Ultimate - Sonnet X-IIIR - HDX Card Freezing


Sonnet spells this out in their tested cards section.
Pro Tools Ult 2019.6, HDX 3, MTRX/SPQ, HD OmniMac Pro 5,1 - 3.06 GHz 12 core - macOS 10.13.6RAM 64GB, SSD 4 x 2TB, GPU GTX 980 4GB
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Old 10-23-2019, 06:43 PM
priceless530 priceless530 is offline
Join Date: Nov 2014
Location: Burbank, CA
Posts: 8
Default Re: Pro Tools 2019 Ultimate - Sonnet X-IIIR - HDX Card Freezing

Thanks much for all your help. Actually, quite surprised how long I've made the thunderbolt 3 card work over the last year and a half. I just ordered the old thunderbolt 2 card. Once installed I'll follow up with the results.
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