The August 2010 issue of TAS features both the SongTower and the Van Alstine Ultravalve in a single "combined" review by Dick Olsher. Very positive stuff all the way around. Confirms what I've been hearing from my set-up( Bob Latino tube amps in my case) all along. A superb speaker design that is tube friendly (impedance-wise) and can easily be driven by tube amps in the 35-60 watt range. Congrats to Jim, Dennis and Frank.