Upgrade from my Modwright KWA 100SE


I am considering a KWA 150 SE, but not sure how significant a jump up it is from my current amp. Any experiences shared are appreciated or alternate upgrade paths. My speakers are my own Open baffle design (Satori MW16P and TW29) with a GR research H frame subs with AQ370 Amps. preamp is LS100. Thanks.
jimbones
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@d2girls, have you heard the Maestro Anniversary Integrated? That said, the amp I mentioned to the OP is a brand new (and much more powerful) model..
Ok so I got a recommendation for a bel canto 600m. That's class D. Is it any better than my KWA 100?
Same amp basically so not much point
 
Not true at all. Different designs. The 100SE is a MOSFET amp. You will get better detail and resolution out of the 150, which will bring bigger more spacious soundstage. Also more refinement and much deeper low end. 
OK so other suggestions have come in. One that is intriguing is the Wells Inamorata. How does that compare to a KWA 150SE?