bobby@bobby-ubuntu:~/Desktop$ speaker-test -c6 -Dhw:1,0 -twav

speaker-test 1.0.11

Playback device is hw:1,0
Stream parameters are 48000Hz, S16_LE, 6 channels
WAV file(s)
Channels count (6) not available for playbacks: Invalid argument
Setting of hwparams failed: Invalid argument
bobby@bobby-ubuntu:~/Desktop$