96kHz Playback Issue with System Audio Stereo Hub HT (ref#0XJVK4)

Support
1

Hi! What’s not quite right with Roon?

· None of the above quite fits

None of the above quite fits

· None of these quite match

Tell us what's going on

· 96kHz playback issue with System Audio Stereo Hub HT (Roon Ready)

Hi Roon Support,

I am experiencing a specific and reproducible 96kHz playback issue when streaming via Roon to my System Audio Stereo Hub HT.

Setup:
- Endpoint: System Audio Stereo Hub HT (Roon Ready)
- Firmware: System version 061 / Streaming version CR443GP_3683 (latest available)
- Speakers: Silverback 6
- Roon Core: NUC

Symptom:
Playback of 96kHz content stutters immediately from the first second — approximately 1 second of audio followed by 1 second of silence, repeating indefinitely.

Key observations that isolate the issue:
1. Only 96kHz fails. All other sample rates (44.1, 48, 88.2, 176.4, and 192kHz) play back correctly via Roon Ready.
2. 96kHz plays back perfectly when streamed directly via Qobuz Connect to the same hub, ruling out a hardware or network issue.
3. Roon's signal path shows no conversion — Roon believes it is sending a bit-perfect 96kHz/24-bit stream.
4. Workaround confirmed: enabling DSP in Roon to upsample 96kHz to 192kHz resolves the issue entirely.

This strongly suggests a clock or buffer configuration error specific to 96kHz in the hub's Roon RAAT implementation, while the Qobuz Connect code path on the same device handles 96kHz correctly.

I am aware of a similar documented issue with the Platin Stereo Hub HT (ref#0U6VHG), which shares the same underlying hardware platform. In that case, Roon diagnostics revealed the device was incorrectly advertising only 16-bit formats. I would appreciate it if you could pull diagnostics from my account to inspect what formats and clock configurations the System Audio Stereo Hub HT is advertising to Roon at 96kHz specifically.

Thank you for your help.

Tell us about your home network

· - Roon Core: Intel NUC
- Network: Sagemcom router, wired Ethernet throughout
- Endpoint: System Audio Stereo Hub HT (Roon Ready), connected via wired Ethernet

2

Hello @poul_bengtson,

Welcome back to the community after 6 years! Thank you for such a detailed and technically precise report—this level of troubleshooting is incredibly helpful for our team.

I have pulled the diagnostics from your account, and you are spot on with your assessment.

What the logs show

Looking at the RAAT (Roon Advanced Audio Transport) handshake between your NUC and the Stereo Hub, I can confirm the following:

  • Format Advertising: The hub is correctly advertising 96000/24/1|2 and 96000/16/1|2.
  • The Platform: As you suspected, the device identifies itself in our logs as a Platin Stereo Hub HT.
04/13 15:49:13 [Local 04/13 17:49:13] Trace: [Platin Stereo Hub HT @ 192.168.1.93:46727] [raatclient] GOT [2] {"info":{"unique_id":"Platincc9093320a00"},"flags":{"has_write_chmap":true},"transport":{"info":{"config":{}},"is_update_artwork_supported":true,"is_supported":true,"is_update_status_supported":true},"output":{"info":{"mqa_capabilities":{}},"supported_formats":"96000/24/1|2,48000/16/1|2,88200/24/1|2,96000/16/1|2,176400/16/1|2,48000/24/1|2,192000/24/1|2,88200/16/1|2,192000/16/1|2,44100/16/1|2,176400/24/1|2,44100/24/1|2"},"source_selection":{"is_supported":true,"info":{"config":{}}},"platform":[],"volume":{"is_supported":true,"info":{"config":{}}},"status":"Success"}

To help us investigate the “1 second on, 1 second off” stuttering further, could you please provide a specific timestamp (track name) when you reproduce the issue?

With that exact window, we can dive back into the logs to see precisely what is happening with the playback stream and the RAAT communication at that moment.

We’ll be standing by for that information!

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Do you need more information?