The best onstage guitar sound I have heard in a long long time was at a concert by Richard Shindell last Sunday. Perfect balance and separation between bass and treble, and the model he was playing was a new all-mahogany Martin (inc. mahogany soundboard).I didn't ask him the model number, but it was under $1000 new. He said he had given up on expensive guitars, as they never sounded any better on stage than the economy models.
Murray