Rachael and Rob: Well that's very interesting. Thank You both.

So it's not my installation!

By 'distorted' I mean that if I bring the volume of the Barron MST's up to a usable level, my Steinway synth sounds as if the mute-pedal is permanently down; or maybe like an electric piano with the tone rolled right off.

So, very sadly, none of the Kenny Barron MST's are really usable at the moment.

I wonder if someone from PG would like to comment?

Thanks again - Best, Andy