Assuming all impedance and voltages are matched, passive is superior in sq, to me, at least. However, I feel it might come down to the recordings, themselves. My highest quality recordings, shine, and the extra gain stage, those I have heard, obscured details and nuances in the recordings. With tubes, added colorations ( again, to me ). But, if I put on a mediocre recording, of which I have many, some sound thread bare, however, detailed, I prefer hearing it this way, as it is from the prospective of what the musicians and the producers were striving for. But, having some excellent preamps and listening to some excellent preamps, I can see why some people prefer them. However, I feel these preamps are " sugar coating " what is being heard, adding some things of their own. Listen, I do not know why, after all this time, people are still debating, better or worse, tube or ss, passive or active, horns vs. box vs panels, etc. The important thing, is to hear everything you can, and, determine what it is " you, the listener ", wants. I will tell you this, and I posted this on another thread, but this will be shorter.....The tone of a violin, as an example, will have changed, to a large degree, once it has been recorded, in it’s final " laydown ", due to the microphones, their placement, and the recorders, and everything else the signal has to see and go through. Unless I was there where the mic was placed, during the recording, I am clueless as to what the result should be. So, I listen to the musicianship, as I try to connect, with the emotional content of the composers, and the players. Tone, harmonics, dynamics, imaging, soundstaging, detail, and other attributes, are all things we expect, and strive to recreate, but, we can only accomplish a fascimile of the real thing. However, when you listen specifically to the " prat ", the start and stop of the music, this is, a given, as the musicians and producers were satisfied, to lay down the final cut. Everything else will fall into place, but when I went passive with my Luminous piece, this, is the area, that truly shows itself, with every recording. So, if the tone of an instrument is off, because of the recording, it is all about what is happening with the " playing " of the instrument. I am not as interested in the instrument itself, as I am listening to the instrument, " being played ", and this, is somewhat lost, or fuzzed over, with a lot of systems. Some of you might know what I am speaking of, but I suspect some of you think I am a wacko....It’s ok....I listen differently than most, and I enjoy, every recording, I play.....Enjoy ! MrD.