The "Live!" sounds in the Yamaha are designed to sound their best when played through stereo speakers.

Whilst some astute listeners may find the "Live!Grand" sound "phasey", it is this very slight animation that gives Yamaha's stereo grand piano the ultra realistic sound that seems to escape some of the other brands(not named to protect the guilty ).

You must remember that Yamaha has been making "real" acoustic pianos for over 100 years(something many other brands cannot claim), so they do know a thing or three about how a realistic piano sample should sound.

The Bose L1, unfortunately, does not reproduce these "Live" sounds well because it is mono.

Virtually any "stereo sampled grand" sounds much better in stereo.

Ditto on board Leslie effects, stereo chorus and delays...they just sound much more deluxe in stereo.

It doesn't take a genius to figure out that if a player wants to hear his stereo sampled sounds at their best, playing through a mono amp just won't cut it.

I liked the Bose L1 for it's exceptional sound spread and it's quality, but it is not the best system for reproducing stereo sounds, in my opinion.

Ian