Now Now - tell the truth about your experience with tone controls 
James
It true everyone.....It's very true.It's time to relate what Yamaha has done to me.It drove me into the arms of Bryston even further as evidenced by section 12.B of the Queens Royal Cort.
So Yamaha releases what I figured was the answer for my quest for (Tone Controls).So in the 12 o'clock position it's straight pipe as they say here at Bryston.But when you move either the Bass or the treble (Tone Controls) it's no longer the pure unadulterated signal it once was.But those (Tone Controls)come at a price,you do infact loose sound quality that is clearly audible.If you can live with that fine,I figured it would be just what was I felt to be missing.But at the end of the day,I want the truth in a recording.
Bryston does give you that.So it's hats off to Yamaha for this revelation.
Amen.