I'm sure that some will say it doesn't matter what color it is as long as it sounds great, and I could live with the color if need be, but I think not having physical drawbars would eventually bother me...a big part of my style and sound when playing B3 was manipulation of the 'bars whilst playing...almost like sculpting the sound in real time...the Nord's buttons just would be too restricting for that, and it essentially would be more of a preset instrument with limited tweaking ability.
The rotary simulation was very good all the same...the equal of Hammond's XK-1, and through a set of stereo monitors spaced about 3 to 6 feet apart, you really got the impression it was "moving air".
The Nord and the XK1 were the first B3 clones that I felt did not need an actual Leslie or other type rotating speaker...they really have it nailed.
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.