Fran,
After reading the spec sheet I suspect that 30-watts per channel is peak power--not RMS. Keep in mind they say you can run this thing on 8 AA batteries for up to 10 hours. If you were truly drawling 60-watts those tiny batteries would be dead in less than a minute.
This looks like something you could use outdoors to play to a bunch of people sitting on a deck, or something you could use in a living room setting. And, while Roland says it will handle audiences to 80 people I seriously doubt that statement is correct. I don't think you'll have this very long.
Merry Christmas Old Friend,
Gary

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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)