I have shipped the Heed Quasar demo phono-stage back to Overture in Wilmington, DE. They have ordered me a new unit for purchase. I don't have all the "audiophile lingo" down but relative to the Lehmann BC which I liked very much (and still do) the Heed is more neutral with bassthat seems extended (to my ear) by another octave (some hyperbole here). On listening for the first time, however, I thought the Heed was bass shy (while extending deeper, lower frequencies were not necessarily louder than the Lehmann). The Lehmann seems a little warmer but I suspect that is due to frequency response deviation from neutral on the part of the Lehmann which might also explain the differences in how bass sounds. Plus my Lehmann is way old and I have no idea how aging solid state components affect sonics. It has been my experience that on first listening, upgrades often come across as brighter and more detailed. Over time as my ear becomes acclimated (or as equipment settles in) this initial impression of "brightness" gives way to a sense of greater musicality. The Heed is definitely more resolving with wider (and deeper) soundstage than the Lehmann. I think I now also understand what people mean when they use the descriptor, "articulate bass". In addition, on loud, complex passages the music from the Heed seems clearer. I'm hearing details I did not hear before. I really like this phono-stage. I've been listening to mostly vinyl since I got it. I'll keep the Lehmann as a back up. Hope this is of some use to the A'gon. community.