The Bose is sub par with any of the Yamaha stereo sounds.

I can't speak for a G70 or Korg, but I can tell you without hesitation, there is a considerable loss in quality when a Yamaha arranger is used in the mono Bose(one system).

Believe me, I wouldn't have sprung for two systems if one would have done the job...and one system doesn't do the job well enough to my ears.

Biggest loss is the stereo pianos, like Live!Grand Piano, Cool!ElectricPiano and several of the SA and Mega guitars that are processed with stereo delay and chorus. The Leslie effect on the organs is drastically affected as well.

I think any instrument that uses stereo DSP of any kind would sound less than it should when played in mono in the Bose.

I first noticed the deficiency on a buddy's PSR-3000 being played through a Bose L1. He didn't mind so much, because all he was using it for was to play SMF, most of which he made himself, with just basically a style and very little, if any, right hand parts.

If all you do is use SMF, it might do the trick, but if you do a lot of instrumental tunes (I do all instrumental) with a Yamaha arranger(including the T3 and CVP) then there will be a difference.

Some can live with it....I couldn't. Hence, the two systems. Mind you, I don't regret buying them, because, believe me, they sound incredible and make both the T3 and S900 sound monstrous and super clean.

The way Yamaha chooses to stereoize it's pianos is not necessarily "bad"...it is just the way they want to use them in a home arranger, which will be played in stereo, either through the factory speakers, or through a home stereo.

The CP-300 provides a mono piano because it is meant to use through a mono PA, and because it is a professional stage piano.

I'm sure other arrangers may provide mono samples for this purpose. Yamaha does not. No big deal, until you use a mono system.

I tried the T3 and PSR-S900 in mono through a Yamaha Stagepas 500, and it affected them exactly the way the Bose did, so obviously, they are meant to sound their best in stereo.

So hear what you like, but I hear the Bose crippling the Yamaha sound in mono...whose fault is it? No one's, as far as I can see, as the Yamaha arrangers were never meant to be played in mono, and even though there is a L+R Mono output jack, it doesn't quite sum things down to mono...at least to my ears.

Bottom line, at least for me, the Bose sounds crappy in mono with Yamaha arrangers....or, vice versa, if you will.

Ian



[This message has been edited by ianmcnll (edited 05-09-2009).]