So far, just get static using Card 1, "Front" for the W4S USB DAC2-DSD2 (works on Linux/Openelec and Win7/MC). Trying other options.
[ths@localhost Downloads]$ ./alsacap; aplay -L
*** Scanning for playback devices ***
Card 0, ID `AudioPCI', name `Ensoniq AudioPCI'
Device 0, ID `ES1371/1', name `ES1371 DAC2/ADC', 1 subdevices (1 available)
1..2 channels, sampling rate 4000..48000 Hz
Sample formats: U8, S16_LE
Subdevice 0, name `subdevice #0'
Device 1, ID `ES1371/2', name `ES1371 DAC1', 1 subdevices (1 available)
1..2 channels, sampling rate 4000..48000 Hz
Sample formats: U8, S16_LE
Subdevice 0, name `subdevice #0'
Card 1, ID `Interface', name `32bit 384kHz DSD Interface'
Device 0, ID `USB Audio', name `USB Audio', 1 subdevices (1 available)
2 channels, sampling rate 44100..384000 Hz
Sample formats: S32_LE
Subdevice 0, name `subdevice #0'
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
default
Default ALSA Output (currently PulseAudio Sound Server)
sysdefault:CARD=AudioPCI
Ensoniq AudioPCI, ES1371 DAC2/ADC
Default Audio Device
front:CARD=AudioPCI,DEV=0
Ensoniq AudioPCI, ES1371 DAC2/ADC
Front speakers
rear:CARD=AudioPCI,DEV=0
Ensoniq AudioPCI, ES1371 DAC1
Rear speakers
surround40:CARD=AudioPCI,DEV=0
Ensoniq AudioPCI, ES1371 DAC2/ADC
4.0 Surround output to Front and Rear speakers
iec958:CARD=AudioPCI,DEV=0
Ensoniq AudioPCI, ES1371 DAC2/ADC
IEC958 (S/PDIF) Digital Audio Output
sysdefault:CARD=Interface
32bit 384kHz DSD Interface, USB Audio
Default Audio Device
front:CARD=Interface,DEV=0
32bit 384kHz DSD Interface, USB Audio
Front speakers
surround40:CARD=Interface,DEV=0
32bit 384kHz DSD Interface, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=Interface,DEV=0
32bit 384kHz DSD Interface, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Interface,DEV=0
32bit 384kHz DSD Interface, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Interface,DEV=0
32bit 384kHz DSD Interface, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Interface,DEV=0
32bit 384kHz DSD Interface, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Interface,DEV=0
32bit 384kHz DSD Interface, USB Audio
IEC958 (S/PDIF) Digital Audio Output
[ths@localhost Downloads]$