Tubes rule! Or not, but I didn’t know tubes were better for low volume (I learn something from Atmasphere about once every 4 and a half days), but I prefer tube amps anyway so I don’t recall the difference since I’ve had a tube amp in the rig for so long…I have noticed better low level sound since I put a pair of efficient horn speakers in the rig, but the tone issues with lower levels are always there so you’re going to need loudness compensation for that anyway if you want the highs (and lows) to get to your earballs…hense my Schiit Loki usefulness. One thing about the Loki is it’s single ended RCA only so balanced "pre to amp" users have to run it through a tape loop or something (although not all preamps have those these days). Maybe the Schiit-heads next EQ (Loki Maxi?) will be balanced. Also the immediate slam and general snappy response of a great tube amp (mine is a lowish powered Dennis Had Fire Bottle HO), along with the inherent tonal "rightness" (an official audiophile term), makes tubes at least "seem" balsier than most SS amps at higher volume when paired with appropriate speakers.