I noticed that many (most) styles on the pa3x have the tracks at almost full volume. Hence people think the korg sounds more "live".

The Yamaha on the other hand, has the drums at (usually) less then 90. along with the other tracks at moderate volumes.

Just a thought: Perhaps if you "remix" and raise the volumes on yamaha, it will also sound (more) live...

Thought i'd share that with you guys