I initially purchased & auditioned the Logitech system and ended up returning it. I concur that the Z2300 system is both more powerful (200 watts vs 80) & sounds better than the TRS-MS02 speaker (stock version) system, but still found BOTH systems to seriously suffer from the stereotypical subwoofer + satellite system type PA syndrome: Lack of mid range presence & clarity, of which is particularly critical for delivering vocal clarity & instrumental lead solos.

The reason I prefer the Yamaha TRS-MS02 system over the Logitech systems (for small gigs of less than 50 people) is better transport (lighter) convenience and quicker/neater setup (no extraneous wires to string about, or trying to figure out how/where to mount/position the satellite speakers. In addition, UPGRADING the TRS-MS02 satellite speakers with Bose 161's provides impressive mid-range clarity and smoother mid-range frequency response, which I find absently missing on both the Z2300 and TRS-MS02 stock satellite speakers. For larger venues, I of course rely on my EV's (SxA100's) in conjunction with/instead.

Robert, if you require one "single PA system" solution to cover venues varying from 20-90 people, the Logitech System is perhaps the better solution, but only you can determine if the sound quality trade off (lack of mid range presence & clarity) is acceptable or not. Either way, here's wishing you years of Tyros2 keyboard playing enjoyment.- Scott

[This message has been edited by Scottyee (edited 05-21-2006).]