Dennis,
I haven't been to Oz for more than 40 years, and I'm sure things have changed dramatically from when I was a young man working in Woomera, SA. Back then the pub audiences consisted mainly of younger folks, most in their 20s and 30s. A 40-year-old was considered an old fart.
If this is still the basic audience makeup, I would stick with what you have. It's not that the Bose L1 couldn't handle it--IMO it can handle any pub job, anywhere in the world. Keep in mind, though, the younger audiences really don't give a damned what you play, just as long as it's very loud and distorted.
The L1 provides very crisp, clean, clear sounds, nothing is distorted, and the sound quality is superb. Taking an L1 into an Oz pub is like putting lipstick on your eyebrows--it just ain't smart. All you would need is one drunken 25-year-old to lean against the tower and it would be Game Over.
In contrast, I use my L1 for everything, including a couple Italian restaurants where I perform about 4 times a month. The audiences range from 50 to 75 years of age, then dance all night, and they rave about the L1's sound. The system is lightweight, goes together very quickly, and when properly set up, I don't think there is a conventional sound system that compares.
I'm not sure if the program exists in Oz, but if it does, Bose offers a 45-day trial period, with a no-questions-asked return policy and full refund. You may want to look into this.
Good Luck,
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.)