i don't think I said you cant tell the difference when cutting all arranger parts except guitar, it is just very cleverly done.
Well, that's about the only negative about the sound I have posted. Especially with acoustic guitar parts, where you are quite LIKELY to want to feature it solo or in a minimal setting, there is a real NEED for consistency. Plus (and I haven't brought this up yet, but have mentioned it in the past) adding extra notes to a six string major or minor strum turns the voicing into a seven or eight string guitar to get a maj7 or a 6/9, etc..
Particularly in light of how good Korg and Yamaha's style Parts are, Korg using a dedicated Guitar Mode to ensure voicing and inversion are accurate and Yamaha using the SA2 guitar voices and new NTT's to get pretty accurate guitar voicings, the more you expose your Guitar Part/s, the more the audio system shows off its weaknesses.
Sure, bury almost anything in a track, and things can be lived with, but solo it and things get more critical.
You are getting WAY too defensive. There is MUCH to like about the Ketron. I have always said, if the included content and the weaknesses of the audio guitars don't bother you, it is a GREAT arranger (support notwithstanding). But no amount of distracting us with other features fixes those that are weak.
For many of us used to being able to quickly and easily edit styles, to change drum kits and beat placement easily to stretch the usefulness of a style, for those of us that find it fun and musically interesting to change a rock guitar part into an acoustic (or vice versa), and for those of us that want or NEED a huge variety of different musical styles, particularly in areas that Ketron don't cover, the Audya has its drawbacks.
In some ways, the Audya's strengths are also its weaknesses. Yes, the audio drumming and audio guitars (if they fit chordally with what song you pick) are out of this world! But you are forced to endure MUCH less quality, once you need musical genre's the ROM doesn't cover, or want to use converted styles from other manufacturers with a much broader base of styles to use.
Me, I'm looking for consistency. I don't want some of my songs to sound amazing, and others merely OK simply because Ketron don't make an audio style in that groove.
I know I sound like a stuck record, but I simply believe that audio styles aren't the answer. MUCH better MIDI sample sets ARE.. Then ALL your styles get the lift from the newer technology, not just the few that come with the arranger.