I have had the the Decapo Be's for about two years. They are just great wonderful fun speakers! They are great with all kinds of music BUT they do prefer a medium size room to get the best out of them. I have used tubes 300b push pull (audio-note and solid state Pass 30.5 and 30.8) The audio-note's were just great and I was in heaven until......one of my great "upgraded" 300 b tubes blew up". So I sold the amps to a guy who btw is still in love with them and then I went the solid state 30.8 pass route and I am back in heaven. In retrospect I guess if I had more patience I would have stuck with the audio note's (sometimes late at night they were quite magical) and just purchased some more reliable 300 tubes. In a not totally unrelated topic I found that experimenting with differnt speaker cables also made tremendous difference in soundstage dimensionality, presence and instrumental texture with the 3a's. I worked with the guys at MG Audio Design on speaker cables and you know what maybe cables make more of a difference than say an amplification change? Anyway have fun with the speakers, get a good used tube amp with some great speaker cables and just relax into the music.
Best wishes Charlie