I'll offer my two cents since I own a ton of Totem speakers. I own both Arro and Sttaf in addition to 4 Dreamcatcher monitors, Dreamcatcher center, Storm subwoofer, and a pair of Totem Mite. I currently have the Arro set up with the Dreamcatchers and Storm in a 7.1 HT system, and the Sttaf in a stereo system all in the same room. I have the Mite set up as my desktop speakers with my computer. Anyway, back to the topic, since I have both the Arro and the Sttaf in the same room, I had some chance to do some side by side comparison. For stereo application, the Sttaf wins hands down, much fuller sound, much bigger soundstage, more musical. It definitely has a warmer sound than the Arro. If you prefer the tube sound over solid state, you will love the Sttaf. Arro on the hand is much brighter. Yes, it might provide more clarity, but I'm not sure how much of this is due to it's lack of the bottom end and its brighter nature. Since I also have the Storm sub, now I do not ever listen to the Arro in stereo mode without also using the sub. The Sttaf on the hand makes the sub redundant in stereo setting. BTW, I have driven these with an Arcam AVR300, a Simaudio I3, and a Marantz SR8500. On a side note, the Arcam AVR300 really is a very musical receiver in stereo setting that rivals many integrated amps and separates. I did find it a little lacking in its surround sound performance that I ended up replacing it with the Marantz SR8500 and the Simaudio I3. Although I think the Marantz SR8500 is a better surround sound performer, its stereo performance is not close to that or the Arcam AVR300.
