I have Argos V2s in my main system which resides in my 28x20x10 living room. I listen to a mix of smooth jazz, classic R&b/Soul, classic Rock, and Blues. Two of the amps in that system are 22wpc tube integrated amps , Line Magnetic 518IA - 845 power tube, Finale Audio 7189MK2 -7189A/EL84M power tube. Both drive the Argos easily, but the Line Magnetic plays with more authority, similar to my Modwright KWA100SE while the Finale is more polite. I chalk up the differences in presentation to the tubes inherent sonic signature as both have quality transformers. I have entertained trying a 2A3 amp but wonder like others if even with the relatively high sensitivity and flat impedance of Daedalus speakers if the 3 or so watts will really give the speakers what they need. Frankly, I keep going back in forth in my mind if a 6-8 watt SET 300B amp is really sufficient given my room size, or if a 20wpc PSET or PP 300B is what is really needed. Looking forward to reading if anyone is using to good effect either the 2A3 or 300B SET