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If you could play a PA800 live for a week, you would not believe how incredible the live sound is. Trust me, I have a good handle on its capabilities now and use just about every style and sound I can get my hands on. Here is what I notice:

1. Wonderful instrument separation in the mix (via my stereo Mackie speakers). This is above all the very best feature.
2. Incredibly useful PADS - awesome.
3. Unbelievably great sounding and easy to use harmonizer on the fly.
4. Great drums.
5. Great defined bass.
6. A superb Songbook feature for live use and arranging your work.
7. Lightweight to carry.
8. Great keybed (at least to me).
9. The intros/endings/variations and fills are very intuitive in live play and there are some very neat tricks that we Korg users have talked about earlier.

The audience reception since I've used this board has been fantastic.

Hope this helps.

zuki