Marc,
I just called my Levys rep and I have the whole scoop now. There is a $50.00 bag that I can get as well just called the EM539. It has 1/2 the padding, no pocket inside for the music rack holder, no pockets on the ends of the case and is made from a lighter nylon material. My rep says these are popular with the $200.00 variety keyboards but not recommended for the better and havier keyboards. So now you know the difference! And by the way, I can sell the same case as 8th street music for the same price, but I wouldn't recommend it now that I know it is 1/2 the padding.
George Kaye
Kaye's Music Scene
Reseda, California
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George Kaye
Kaye's Music Scene (Closed after 51 years)
West Hills, California
(Retired 2021)