Spica TC-50/REL Strata II vs. GMA Europa?

I'm a long time Spica fan, have owned them for almost twenty years and love them for certain things, but for rock my opinion is that they suck. No doubt a REL in the equation would help. But the problem I find with TC-50's is that they don't handle sonic complexity (such as the high distortion levels in a lot of rock) nor high volume very well. Their strong suit is simple, cleanly recorded stuff at moderate listening levels - folk, chamber music, small jazz ensemble, "new age". For a main system I'd think the GMAs are more versatile (though I haven't heard them). The Spicas are excellent bedroom system speakers - unless Courtney Love stays over occasionally.

If you really like the Spicas and just want them to play louder and "rock" a little more, it wouldn't be crazy to pick up a reasonably priced pair of TC-60's. They're ported and so have more punch than the 50's, I believe replacement drivers are still obtainable, and they were John Bau's personal favorite of his own line. If they don't do it for you, you can easily resell them for what you paid.