Anthem has a needle/nozzle .75mm; the 150 might have a 1.5mm, which is what I have in my Crescendo. The larger the n/n, the easier it is to clean up and to spray thicker paints.
The 150 nozzles are .25, .5, and .76mm. The Anthem comes with .76mm but .5 and .35mm are available. The Crescendo can use .5, .76, or 1.0mm nozzles.