Haven't heard the Solo's, but the GMA Europa is one damn fine speaker. It's strengths are first order x-over done right, amazingly realistic voice range, good bass for it's size, time/phase aligned, and all the imaging comments pointed out by many others. But the big one for me at least is the ability to make recordings that other speakers sound horrible on.......somehow sound good. Whats it worth to be able to listen to, and enjoy all your recordings? Music should be enjoyable.
Compare them if possible, but the Europa is one very good speaker. Hope that helps.
Compare them if possible, but the Europa is one very good speaker. Hope that helps.