Listen to these stream addresses on your favorite media player (Opus streams are only known to work on VLC and Winamp):

64k HE-AAC:  http://fs-west.theblast.fast-serv.com:80/blastozoic64

56k Opus: http://fs-west.theblast.fast-serv.com:80/blastozoic56ogg.opus

48k HE-AAC: http://fs-east.theblast.fast-serv.com:80/blastozoic48

32k HE-AAC: http://fs-west.theblast.fast-serv.com:80/blastozoic32

20k HE-AAC: http://fs-east.theblast.fast-serv.com:80/blastozoic20