FredNowak wrote: > The Wyred4Sound Micro Dac (µDAC) is a 24/96 Async USB, 24/192 coxaxial > and 24/192 optical input Dac. The Dac can be powered by the USB cable or > by an external 9v power supply. All three inputs can be powered by > either power supply. > > Here is what I have at present: > 1. Without the EDO the SBT converts the wav and flac formats before > sending the stream on the coaxial input. With the EDO the SBT does not > do a conversion and everything sounds good. > > 2. With USB, no hub, and the 9v power supply the EDO recognizes the Dac > and plays in the adaptive mode. I cannot say it sounds any different > than the coaxial input. There are no pops or clicks. > > 3. I have unpowered and powered hubs that work successfully with the HRT > Music Streamer II. If I use either of these hubs or do not use the > external 9v power supply the EDO is unable to find the µDAC. When the > powered hub and 9v power supply are used the initial install of the EDO > will report the hub as "USB-Audio - USB Device 0x1950:0x9019" but after > the reboot it cannot find the Dac. Other combinations of hub and power > supply never report a Dac. > > Here are the aplay reports: > 1. Direct connection (SBT to DAC) > /root$ aplay -l > **** List of PLAYBACK Hardware Devices **** > card 0: TXRX [MXC SPDIF TX/RX], device 0: MXC_SPDIF [MXC_SPDIF] > Subdevices: 0/1 > Subdevice #0: subdevice #0 > card 1: USB [MICRO DAC Async USB], device 0: USB Audio [USB Audio] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: USB [MICRO DAC Async USB], device 1: USB Audio [USB Audio #1] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 2: fab4 [fab4], device 0: fab4-ak4420 [] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > > > 2. With USB hub (SBT to hub to DAC) > /root$ aplay -l > **** List of PLAYBACK Hardware Devices **** > card 0: TXRX [MXC SPDIF TX/RX], device 0: MXC_SPDIF [MXC_SPDIF] > Subdevices: 0/1 > Subdevice #0: subdevice #0 > card 1: fab4 [fab4], device 0: fab4-ak4420 [] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 2: fab4_1 [fab4], device 0: fab4-wm8974 [] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > > > I really think the EDO with the Wyred4Sound µDAC is a superb combination > for the SBT and is a keeper for me. > > Fred
As far as I know the Wyred4Sound DACs use the M2Tech OEM board which means they need a proprietary driver to work, which does not exist for linux. Thus i would not expect to get it to work over USB at all. John S. ------------------------------------------------------------------------ JohnSwenson's Profile: http://forums.slimdevices.com/member.php?userid=5974 View this thread: http://forums.slimdevices.com/showthread.php?t=94512
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