pete@crunchbang:~$ aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
hdmi:CARD=Generic
    HD-Audio Generic, HDMI 0
    HDMI Audio Output
front:CARD=SB,DEV=0
    HDA ATI SB, ALC270 Analog
    Front speakers
surround40:CARD=SB,DEV=0
    HDA ATI SB, ALC270 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=SB,DEV=0
    HDA ATI SB, ALC270 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=SB,DEV=0
    HDA ATI SB, ALC270 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=SB,DEV=0
    HDA ATI SB, ALC270 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=SB,DEV=0
    HDA ATI SB, ALC270 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers