NAD C390DD MQA Error

I am having the same problem with my NAD C390DD amp with BluOS MDC module.
Intel NUC running ROCK
Everything wired.

My problem occurs whenever I select an MQA track from Tidal to the C390DD endpoint. I get the error “Roon lost control of the audio device” and must power cycle the amp to recover. (It disappears from my endpoints list).

  • I can play MQA tracks on other endpoints (Raspberry Pi)

  • I can play MQA tracks on the C390DD amp using the BluOS app on my Android tablet.

  • I can play Hi-Res tracks from local NAS storage.

Here below is an excerpt from the NUC/ROCK log file at the time of error: ( [zone Den] is the C390DD)

------------------------------
03/11 14:03:55 Info: 
--[ SignalPath ]---------------------------------------------
SignalPath Quality = Enhanced
Elements:
    Source Format=Flac 44100/24/2  Quality=Lossless MQA 44100
    MQA Subtype=authentication LightState=off OriginalSampleRate=44100 OutputSampleRate= OutputBitsPerSample=
    MQA Subtype=roon_core_decoder LightState= OriginalSampleRate= OutputSampleRate=88200 OutputBitsPerSample=24
    MQBPreserve Quality=Lossless
    UpgradeBitDepth FromBitsPerSample=24 ToBitsPerSample=64 Quality=Lossless
    VolumeNormaliation GainDb=0 Quality=Lossless
    HeadroomGain GainDb=-3 Quality=Enhanced
    MQBRestore FromBitsPerSample=64 ToBitsPerSample=24 Quality=Lossless
    Raat Device=NAD C390
    Output OutputType=Local_Other Quality=Lossless SubType= Model=
------------------------------------------------------------
03/11 14:03:55 Info: MQA authentication
03/11 14:03:55 Info: MQA roon_core_decoder
03/11 14:03:55 Info: [library] recorded play for profile c4f6fb02-4b13-4e02-b7a5-82ff3b42b5ae: mediaid=168:0:44215582 metadataid= contentid=168:0:44215582 libraryid= isfromswim=False
03/11 14:03:55 Info: [zone Den] OnPlayFeedback Playing
03/11 14:03:55 Trace: [Den] [Enhanced, 24/44 MQA TIDAL FLAC => 24/88 MQA] [100% buf] [PLAYING @ 0:00] Pull Me Closer - Dimitri Vegas
03/11 14:03:55 Trace: [prebuffer] ready 149940/441000 (34%) @ 0/164 sec
03/11 14:03:55 Trace: [streamingmediafile] immediate read of http://ab-pr-cf.audio.tidal.com/c52fd3af03bb3f4cf1e92d0e559c76e7_39.flac at 786432 length=33075072
03/11 14:03:55 Trace: [tidal/http] GET https://api.tidal.com/v1/tracks/172950381?countryCode=CA => Success
03/11 14:03:55 Info: [Den] [zoneplayer] Queueing: http://ab-pr-cf.audio.tidal.com/c52fd3af03bb3f4cf1e92d0e559c76e7_39.flac
03/11 14:03:55 Trace: [NAD C390 @ 10.22.1.15:44809] [raatclient] GOT [205] {"status":"Lost","reason":[]}
03/11 14:03:55 Trace: [Den] [zoneplayer/raat] Got 'lost' response
03/11 14:03:55 Trace: [Den] [zoneplayer/raat] lost endpoint. stopping stream
03/11 14:03:55 Warn: [zone Den] Track Stopped Due to LostEndpoint
03/11 14:03:55 Info: [zone Den] OnPlayFeedback StoppedLostEndpoint
03/11 14:03:55 Trace: [zone Den] Suspend
03/11 14:03:55 Info: [zone Den] OnPlayFeedback Stopped
03/11 14:03:55 Info: [zone Den] Canceling Pending Sleep
03/11 14:03:55 Trace: [Den] [Enhanced, 24/44 MQA TIDAL FLAC => 24/88 MQA] [100% buf] [STOPPED @ 0:00] Pull Me Closer - Dimitri Vegas
03/11 14:03:55 Info: [audio/env] [zoneplayer -> stream] All streams were disposed
03/11 14:03:55 Info: [audio/env] [zoneplayer -> stream -> endpoint] All streams were disposed
03/11 14:03:55 Trace: [streamingmediafile] immediate read of http://ab-pr-cf.audio.tidal.com/c52fd3af03bb3f4cf1e92d0e559c76e7_39.flac at 1310720 length=33075072
03/11 14:03:55 Info: sleep 200ms after flush
03/11 14:03:55 Info: [audio/env] [zoneplayer] All streams were disposed
03/11 14:03:55 Trace: [streamingmediafile] immediate read of http://ab-pr-cf.audio.tidal.com/c52fd3af03bb3f4cf1e92d0e559c76e7_39.flac at 262144 length=33075072
03/11 14:03:55 Info: 
--[ SignalPath ]---------------------------------------------
SignalPath Quality = Enhanced
Elements:
    Source Format=Flac 44100/24/2  Quality=Lossless MQA 44100
    MQA Subtype=authentication LightState=off OriginalSampleRate=44100 OutputSampleRate= OutputBitsPerSample=
    MQA Subtype=roon_core_decoder LightState= OriginalSampleRate= OutputSampleRate=88200 OutputBitsPerSample=24
    MQBPreserve Quality=Lossless
    UpgradeBitDepth FromBitsPerSample=24 ToBitsPerSample=64 Quality=Lossless
    VolumeNormaliation GainDb=0 Quality=Lossless
    HeadroomGain GainDb=-3 Quality=Enhanced
    MQBRestore FromBitsPerSample=64 ToBitsPerSample=24 Quality=Lossless
    Raat Device=NAD C390
    Output OutputType=Local_Other Quality=Lossless SubType= Model=
------------------------------------------------------------
03/11 14:03:56 Info: [Den] [zoneplayer] Open result (Queueing): Result[Status=Success]
03/11 14:03:56 Info: [library] saved recent ProfileId=c4f6fb02-4b13-4e02-b7a5-82ff3b42b5ae Time=03/11/2021 14:03:56 DataType=album Type=long_nav MetadataId=69221182 ContentId=69221182 LibraryId=
03/11 14:04:02 Info: [stats] 27158mb Virtual, 3829mb Physical, 1070mb Managed, 330 Handles, 95 Threads
03/11 14:04:04 Trace: [raat] [NAD C390 @ 10.22.1.15:44809] => Disconnected
03/11 14:04:04 Trace: [raat] [NAD C390 @ 10.22.1.15:44809] lost client connection. Retrying
03/11 14:04:04 Trace: [push] restarting connection (Unable to read data from the transport connection: Software caused connection abort.)
03/11 14:04:04 Trace: [push] retrying connection in 41309ms
03/11 14:04:04 Trace: [raat] [NAD C390 @ 10.22.1.15:44809] connecting (attempt 1)
03/11 14:04:04 Info: [transport] destroyed zone Den was playing? False
03/11 14:04:04 Trace: [zone Den] Suspend
03/11 14:04:04 Info: [zone Den] Canceling Pending Sleep
03/11 14:04:04 Info: [zone Den] Canceling Pending Sleep
03/11 14:04:04 Warn: [raat_ll/client] [NAD C390 @ 10.22.1.15:44809] failed to connect Connection refused [::ffff:10.22.1.15]:44809
03/11 14:04:04 Info: [audio/env] [zoneplayer] All streams were disposed
03/11 14:04:04 Trace: [raat] [NAD C390 @ 10.22.1.15:44809] => Connecting
03/11 14:04:04 Trace: [raat] [NAD C390 @ 10.22.1.15:44809] => ConnectionFailed
03/11 14:04:04 Trace: [raat] [NAD C390 @ 10.22.1.15:44809] client connection failed. Retrying in 500ms
03/11 14:04:04 Trace: [raat] [NAD C390 @ 10.22.1.15:44809] connecting (attempt 2)
03/11 14:04:04 Trace: [raat] [NAD C390 @ 10.22.1.15:44809] => Connecting

Hello @Tim_Pointon ,

Thank you for the report! We’re working with NAD regarding this issue, please reach out to NAD regarding any updates, thanks!

This topic was automatically closed 36 hours after the last reply. New replies are no longer allowed.