SET or OTL to drive Gallo 3.1's Recommendations?

Hello All: I posted asking for recommendations for amps to drive my Gallo 3.1's, got a lot of solid state recommendations, but was intrigued by Dpogue's 12W SET's -- I tried a pair of Tonewin 16 W SET 845 mono's and a low volume, the sound is amazing. Unfortunately, even with Paul Spelt's Zeros, they clip badly at any reasonable volume. I am thinking about spending for an SET or OTL rig ( possibly a new pre-amp too -- have the Odyssey candela now ) to drive these. Any help would be most welcome.