Unable to play DSD files on KEF LS50 Wireless 2

Hi, I’m using the Audirvana Studiuo trial-version to play DSD64 files on my Windows 11 PC to my KEF LS50 Wireless 2 speakers. The thing is, it worked after first install but now it’s borged somehow. Reinstalling Audivarna did the trick a few times, but now it just says “Loading first track…” for a few seconds and then eternal silence. It also shows “DAC: 24/192 kHz Stereo” whereas with proper DSD-playback to my KEFs before it showed ‘DSD64’ or something like this. There’s also a Marantz SR6014 attached which plays DSD files converted to PCM just fine.

Any tips on this one?

Debug info:

Audirvana Studio 1.7.2 (10702)

Windows 11 (22000) with 16GB physical RAM

Connected account:

SIGNAL PROCESSING:

Polarity Inversion:
	Globally: OFF
	Per track: ON
Effects plugins NOT ACTIVE

UPSAMPLING:
r8brain not in use
r8brain filter parameters
Bandwidth = 99.5%
Stop band attenuation 218dB
Phase linear

AUDIO VOLUME:
Max allowed volume: 100
Replay Gain: None
SW volume control: ON

LIBRARY SETTINGS:
Sync list: 1 folders
AUTO: C:\Users\mjpd\Desktop
Library database path: C:\Users\mjpd\AppData\Local\Audirvana\Audirvana\AudirvanaDatabase.sqlite

Remote Control server:
Listening on 2001:1c02:2f13:8d00:4836:5828:f2b6:dcaa on port 49773

ACTIVE STREAMING SERVICES

=================== AUDIO DEVICE ========================

Preferred device: KEF KEF Model UID:KEF KEF UID:uuid:ae90fc14-5606-42a9-bd40-e20b21a351b8

Selected device:
UPnP device at http://192.168.178.11:42435/ae90fc14-5606-42a9-bd40-e20b21a351b8.xml
KEF
Manufacturer: KEF
Model Name:
Model UID: KEF KEF
UID: uuid:ae90fc14-5606-42a9-bd40-e20b21a351b8

8 available sample rates up to 5644800Hz
44100
48000
88200
96000
176400
192000
2822400
5644800
Volume control: No
MQA capability
Auto-detect MQA devices: Yes
Not a MQA device, user set to not MQA
DSD capability: Raw DSD (MSB)
Device audio channels
Preferred stereo channels L:0 R:1
Channel bitmap: Ox3, layout:
Channel 0 mapped to 0
Channel 1 mapped to 1
Avoid RAW PCM streams: No
UPnP/DLNA supported protocols:
http-get::text/xml:DLNA.ORG_PN=DIDL_S
http-get:
:audio/vnd.dlna.adts:DLNA.ORG_PN=HEAACv2_L2_320
http-get::audio/x-ms-wma:DLNA.ORG_PN=WMAFULL
http-get:
:audio/x-ms-wma:DLNA.ORG_PN=WMABASE
http-get::audio/3gpp:DLNA.ORG_PN=HEAACv2_L2_320
http-get:
:audio/mp4:DLNA.ORG_PN=HEAACv2_L2_320
http-get::audio/l16;rate=48000;channels=1:DLNA.ORG_PN=LPCM
http-get:
:audio/l16;rate=48000;channels=2:DLNA.ORG_PN=LPCM
http-get::audio/l16;rate=44100;channels=1:DLNA.ORG_PN=LPCM
http-get:
:audio/l16;rate=44100;channels=2:DLNA.ORG_PN=LPCM
http-get::audio/mpeg:DLNA.ORG_PN=MP3
rtsp-rtp-udp:
:text/xml:DLNA.ORG_PN=DIDL_S
rtsp-rtp-udp::audio/vnd.dlna.adts:DLNA.ORG_PN=HEAACv2_L2_320
rtsp-rtp-udp:
:audio/x-ms-wma:DLNA.ORG_PN=WMAFULL
rtsp-rtp-udp::audio/x-ms-wma:DLNA.ORG_PN=WMABASE
rtsp-rtp-udp:
:audio/3gpp:DLNA.ORG_PN=HEAACv2_L2_320
rtsp-rtp-udp::audio/mp4:DLNA.ORG_PN=HEAACv2_L2_320
rtsp-rtp-udp:
:audio/l16;rate=48000;channels=1:DLNA.ORG_PN=LPCM
rtsp-rtp-udp::audio/l16;rate=48000;channels=2:DLNA.ORG_PN=LPCM
rtsp-rtp-udp:
:audio/l16;rate=44100;channels=1:DLNA.ORG_PN=LPCM
rtsp-rtp-udp::audio/l16;rate=44100;channels=2:DLNA.ORG_PN=LPCM
rtsp-rtp-udp:
:audio/mpeg:DLNA.ORG_PN=MP3
http-get::audio/x-wav:
http-get::audio/x-m4a:
http-get::audio/wave:
http-get::audio/3gpp:
http-get::audio/x-flac:
http-get::audio/x-dsf:
http-get::audio/l16;rate=44100;channels=1:
http-get::audio/l16;rate=44100;channels=2:
http-get::audio/vnd.dlna.adts:
http-get::audio/ogg:
http-get::audio/x-dff:
http-get::audio/flac:
http-get::text/xml:
http-get::audio/l16;rate=48000;channels=1:
http-get::audio/l16;rate=48000;channels=2:
http-get::audio/wav:
http-get::audio/m4a:
http-get::audio/mp4:
http-get::application/ogg:
http-get::audio/aac:
http-get::audio/vorbis:
http-get::audio/x-aiff:
http-get::audio/mpeg:
http-get::audio/x-ms-wma:
http-get::audio/aiff:
rtsp-rtp-udp::audio/x-wav:
rtsp-rtp-udp::audio/x-m4a:
rtsp-rtp-udp::audio/wave:
rtsp-rtp-udp::audio/3gpp:
rtsp-rtp-udp::audio/x-flac:
rtsp-rtp-udp::audio/x-dsf:
rtsp-rtp-udp::audio/l16;rate=44100;channels=1:
rtsp-rtp-udp::audio/l16;rate=44100;channels=2:
rtsp-rtp-udp::audio/vnd.dlna.adts:
rtsp-rtp-udp::audio/ogg:
rtsp-rtp-udp::audio/x-dff:
rtsp-rtp-udp::audio/flac:
rtsp-rtp-udp::text/xml:
rtsp-rtp-udp::audio/l16;rate=48000;channels=1:
rtsp-rtp-udp::audio/l16;rate=48000;channels=2:
rtsp-rtp-udp::audio/wav:
rtsp-rtp-udp::audio/m4a:
rtsp-rtp-udp::audio/mp4:
rtsp-rtp-udp::application/ogg:
rtsp-rtp-udp::audio/aac:
rtsp-rtp-udp::audio/vorbis:
rtsp-rtp-udp::audio/x-aiff:
rtsp-rtp-udp::audio/mpeg:
rtsp-rtp-udp::audio/x-ms-wma:
rtsp-rtp-udp::audio/aiff:
DLNA 1.5: Yes
Gapless playback: Yes
Missing events workaround: No
Can play native DSD: Yes
Volume Control: scalar
Number of channels: 2
Use as stereo device only: No

1 output streams:
Number of active channels: 2, in 1 stream(s)
Channel #0 :Stream 0 channel 0
Channel #1 :Stream 0 channel 1
2 ch Integer PCM 16bit little endian 44.1kHz finite length
2 ch Integer PCM 24bit little endian 44.1kHz finite length
2 ch Integer PCM 16bit little endian 88.2kHz finite length
2 ch Integer PCM 24bit little endian 88.2kHz finite length
2 ch Integer PCM 16bit little endian 176.4kHz finite length
2 ch Integer PCM 24bit little endian 176.4kHz finite length
2 ch Integer PCM 16bit little endian 48kHz finite length
2 ch Integer PCM 24bit little endian 48kHz finite length
2 ch Integer PCM 16bit little endian 96kHz finite length
2 ch Integer PCM 24bit little endian 96kHz finite length
2 ch Integer PCM 16bit little endian 192kHz finite length
2 ch Integer PCM 24bit little endian 192kHz finite length
2 ch DSD 8bit little endian in 8bit chunk 2822.4kHz finite length
2 ch DSD 8bit little endian in 8bit chunk 5644.8kHz finite length

Current device transportInfo:
CurrentTransportState: PAUSED_PLAYBACK
CurrentTransportStatus: OK
CurrentSpeed: 1
Current device MediaInfo:
NrTracks: 0
MediaDuration: 0:00:00
CurrentURI:
CurrentURIMetadata:
nextURI:
nextURIMetadata:
PlayMedium: NONE
RecordMedium: NOT_IMPLEMENTED
WriteStatus: NOT_IMPLEMENTED

Current device AVT service description:

<?xml version="1.0"?> 1 0 SetAVTransportURI InstanceID in A_ARG_TYPE_InstanceID CurrentURI in AVTransportURI CurrentURIMetaData in AVTransportURIMetaData SetNextAVTransportURI InstanceID in A_ARG_TYPE_InstanceID NextURI in NextAVTransportURI NextURIMetaData in NextAVTransportURIMetaData GetMediaInfo InstanceID in A_ARG_TYPE_InstanceID NrTracks out NumberOfTracks MediaDuration out CurrentMediaDuration CurrentURI out AVTransportURI CurrentURIMetaData out AVTransportURIMetaData NextURI out NextAVTransportURI NextURIMetaData out NextAVTransportURIMetaData PlayMedium out PlaybackStorageMedium RecordMedium out RecordStorageMedium WriteStatus out RecordMediumWriteStatus GetMediaInfo_Ext InstanceID in A_ARG_TYPE_InstanceID CurrentType out CurrentMediaCategory NrTracks out NumberOfTracks MediaDuration out CurrentMediaDuration CurrentURI out AVTransportURI CurrentURIMetaData out AVTransportURIMetaData NextURI out NextAVTransportURI NextURIMetaData out NextAVTransportURIMetaData PlayMedium out PlaybackStorageMedium RecordMedium out RecordStorageMedium WriteStatus out RecordMediumWriteStatus GetTransportInfo InstanceID in A_ARG_TYPE_InstanceID CurrentTransportState out TransportState CurrentTransportStatus out TransportStatus CurrentSpeed out TransportPlaySpeed GetCurrentTransportActions InstanceID in A_ARG_TYPE_InstanceID Actions out CurrentTransportActions GetPositionInfo InstanceID in A_ARG_TYPE_InstanceID Track out CurrentTrack TrackDuration out CurrentTrackDuration TrackMetaData out CurrentTrackMetaData TrackURI out CurrentTrackURI RelTime out RelativeTimePosition AbsTime out AbsoluteTimePosition RelCount out RelativeCounterPosition AbsCount out AbsoluteCounterPosition GetDeviceCapabilities InstanceID in A_ARG_TYPE_InstanceID PlayMedia out PossiblePlaybackStorageMedia RecMedia out PossibleRecordStorageMedia RecQualityModes out PossibleRecordQualityModes GetTransportSettings InstanceID in A_ARG_TYPE_InstanceID PlayMode out CurrentPlayMode RecQualityMode out CurrentRecordQualityMode Stop InstanceID in A_ARG_TYPE_InstanceID Play InstanceID in A_ARG_TYPE_InstanceID Speed in TransportPlaySpeed Pause InstanceID in A_ARG_TYPE_InstanceID Seek InstanceID in A_ARG_TYPE_InstanceID Unit in A_ARG_TYPE_SeekMode Target in A_ARG_TYPE_SeekTarget Next InstanceID in A_ARG_TYPE_InstanceID Previous InstanceID in A_ARG_TYPE_InstanceID X_DLNA_GetBytePositionInfo InstanceID in A_ARG_TYPE_InstanceID TrackSize out X_DLNA_CurrentTrackSize RelByte out X_DLNA_RelativeBytePosition AbsByte out X_DLNA_AbsoluteBytePosition SetPlayMode InstanceID in A_ARG_TYPE_InstanceID NewPlayMode in CurrentPlayMode TransportState string STOPPED PAUSED_PLAYBACK PAUSED_RECORDING PLAYING RECORDING TRANSITIONING NO_MEDIA_PRESENT TransportStatus string OK ERROR_OCCURRED CurrentMediaCategory string NO_MEDIA TRACK_AWARE TRACK_UNAWARE CurrentTransportActions string PlaybackStorageMedium string UNKNOWN DV MINI-DV VHS W-VHS S-VHS D-VHS VHSC VIDEO8 HI8 CD-ROM CD-DA CD-R CD-RW VIDEO-CD SACD MD-AUDIO MD-PICTURE DVD-ROM DVD-VIDEO DVD-R DVD+RW DVD-RW DVD-RAM DVD-AUDIO DAT LD HDD MICRO-MV NETWORK NONE NOT_IMPLEMENTED SD PC-CARD MMC CF BD MS HD_DVD RecordStorageMedium string UNKNOWN DV MINI-DV VHS W-VHS S-VHS D-VHS VHSC VIDEO8 HI8 CD-ROM CD-DA CD-R CD-RW VIDEO-CD SACD MD-AUDIO MD-PICTURE DVD-ROM DVD-VIDEO DVD-R DVD+RW DVD-RW DVD-RAM DVD-AUDIO DAT LD HDD MICRO-MV NETWORK NONE NOT_IMPLEMENTED SD PC-CARD MMC CF BD MS HD_DVD PossiblePlaybackStorageMedia string NONE NETWORK PossibleRecordStorageMedia string CurrentPlayMode string NORMAL REPEAT_TRACK REPEAT_ONE REPEAT_ALL NORMAL TransportPlaySpeed string 1 1 RecordMediumWriteStatus string WRITABLE PROTECTED NOT_WRITABLE UNKNOWN NOT_IMPLEMENTED CurrentRecordQualityMode string 0:EP 1:LP 2:SP 0:BASIC 1:MEDIUM 2:HIGH NOT_IMPLEMENTED PossibleRecordQualityModes string NumberOfTracks ui4 0 512 CurrentTrack ui4 0 512 1 CurrentTrackDuration string CurrentMediaDuration string CurrentTrackMetaData string CurrentTrackURI string AVTransportURI string AVTransportURIMetaData string NextAVTransportURI string NextAVTransportURIMetaData string RelativeTimePosition string AbsoluteTimePosition string RelativeCounterPosition i4 AbsoluteCounterPosition i4 LastChange string A_ARG_TYPE_SeekMode string ABS_TIME REL_TIME TRACK_NR ABS_COUNT REL_COUNT X_DLNA_REL_BYTE A_ARG_TYPE_SeekTarget string A_ARG_TYPE_InstanceID ui4 X_DLNA_RelativeBytePosition string X_DLNA_AbsoluteBytePosition string X_DLNA_CurrentTrackSize string

Current device RootDevice description:

<?xml version="1.0"?> 1 0 QPlay:2.1 urn:schemas-upnp-org:device:MediaRenderer:1 KEF KEF http://www.kef.com/ LS50 Wireless II LS50 Wireless II SP4025 http://www.kef.com/ 16d78419-8c5f-48c7-8d14-45925936f586 uuid:ae90fc14-5606-42a9-bd40-e20b21a351b8 image/png 120 120 24 /LibRygelRenderer-120x120x24.png image/png 48 48 24 /LibRygelRenderer-48x48x24.png image/jpeg 120 120 24 /LibRygelRenderer-120x120x24.jpg image/jpeg 48 48 24 /LibRygelRenderer-48x48x24.jpg urn:schemas-upnp-org:service:ConnectionManager:1 urn:upnp-org:serviceId:ConnectionManager /xml/ConnectionManager.xml /Control/LibRygelRenderer/RygelSinkConnectionManager /Event/LibRygelRenderer/RygelSinkConnectionManager urn:schemas-upnp-org:service:AVTransport:1 urn:upnp-org:serviceId:AVTransport /xml/AVTransport2.xml /Control/LibRygelRenderer/RygelAVTransport /Event/LibRygelRenderer/RygelAVTransport urn:schemas-upnp-org:service:RenderingControl:1 urn:upnp-org:serviceId:RenderingControl /xml/RenderingControl2.xml /Control/LibRygelRenderer/RygelRenderingControl /Event/LibRygelRenderer/RygelRenderingControl urn:schemas-tencent-com:service:QPlay:1 urn:tencent-com:serviceId:QPlay /xml/QPlayDescription.xml /Control/LibRygelRenderer/QPlay /Event/LibRygelRenderer/QPlay http://192.168.178.11:80/ DMR-1.51

UPnP devices found : 6
Device #0KEF UID: uuid:ae90fc14-5606-42a9-bd40-e20b21a351b8 Location: http://192.168.178.11:42435/ae90fc14-5606-42a9-bd40-e20b21a351b8.xml
Device #1Marantz SR6014 UID: uuid:f7c79532-9cf6-13f2-0080-0006784ebe6a Location: http://192.168.178.26:60006/upnp/desc/aios_device/aios_device.xml
Device #2Marantz SR6014 UID: uuid:1d4db204-82aa-1670-0080-0006784ebe6a Location: http://192.168.178.26:60006/upnp/desc/aios_device/aios_device.xml
Device #3Marantz SR6014 UID: uuid:62566c2b-6368-14cc-0080-0006784ebe6a Location: http://192.168.178.26:60006/upnp/desc/aios_device/aios_device.xml
Device #4Marantz SR6014 UID: uuid:79ff88c1-346e-b6fb-117d-4f67eb0686c8 Location: http://192.168.178.26:60006/upnp/desc/aios_device/aios_device.xml
Device #5Marantz SR6014 UID: uuid:9a794c05-f245-9f3d-8efd-bbee77aee80c Location: http://192.168.178.26:60006/upnp/desc/aios_device/aios_device.xml

Max. memory for audio buffers: 256MB

Local Audio Engine: Kernel Streaming

Local devices found : 1
Device #0: 4 - marantz-AVR (AMD High Definition Audio Device) Manufacturer: Advanced Micro Devices Model UID: HDAUDIO\FUNC_01&VEN_1002&DEV_AA01&SUBSYS_00AA0100&REV_1007 UID: \?\SWD#MMDEVAPI#{0.0.0.00000000}.{58c045e4-2755-4013-a874-654bb57bced6}#{e6327cad-dcec-4949-ae8a-991e976a79d2} Model Name: Unknown manufacturer

Just disable software volume control and select DoP as DSD Playback method.

Thanks for your quick response!

I could only disable SVC when using the Marantz. On the KEF settings, SVC was already disabled. Tried ‘DSD over PCM 1.0’ and also the other options in ‘Native DSD streaming method’ on the Marantz but to no avail. These are not available in the KEF settings, which should be able to play DSD just fine.

I’m able to play ‘local’ and ‘high quality’ radiostations through the Marantz. Lots of audio drop-outs though… But unable to play radio stations on the KEFs.

Do a hard power off on the KEF. Keep it unplugged for a while and after about 30 sec, plug it in again.

Well, that did the trick. Thank you very much! I recall trying the “unplugging the ol’ powercord” method on previous troubleshooting attempts but somehow it returned. Now I know what to do. Is this some handshaking issue?

It’s either a memory leak or the device just ends up in an unexpected state.