ASSR is really focused on studio recording but obviously the subject is 'audio' and there are definitely common areas.

While the series as a whole (DVD set or all downloads) makes a wonderful investment, you might want to consider downloading some the following sections that certainly do have relevance to working in live sound:

Studio Acoustics (discusses sound behavior)
EQ
Delays
Reverb
Noise Dates
Compressors and Limiters
Band Tracking Session
Recording A Choir
Microphones

ASSR