As a "new" Belles 350A Reference owner, I also want to throw myself into the "very impressed" camp. I had never even heard about Power Modules/Belles, but was looking to replace a Sunfire Cinema Grand (five channel) with a robust two-channel amp, to drive ML Summits. I had already demo'd a Butler 2250, but wasn't happy with it's synergy with the Summits. My dealer then suggested I consider the Belles. I researched the Belles 350A Ref, found the sole Soundstage review, but otherwise SCANT mention of it online. I, too, emailed Belles/Power Modules (specifically inquiring about how well it could handle ML's)... and like most folks, never got a reply. I was unimpressed, and ready to keep looking at other brands. However, since I already had $$ credit with my dealer, and the demo would only cost me shipping, I finally agreed to give it a listen. Wow! From the first notes, I was blown away, and immediately called my dealer to say it was a keeper. After 3 months break-in, I'm even more thrilled with it's musicality. I eventually emailed Belles/Power Modules AGAIN (praising the amp) and DID receive a personal thank-you reply from David Belles himself. I suspect Dave Belles is approaching retirement, and just not interested in investing the time and energy needed to compete in the shrinking audiophile market. That would be a real loss for the audio future.