Well there are a few exceptions. The Project Dac Box S Fl defiantly sounds very different then most SS DAC's I heard. It does have a similar sound to the Maverick Audio D1 through the tube output, but is slightly more refined. The both have a analogue sound to them, and while not the absolute in detail (having Great Heils helps offset this) I find them way more easier to listen to four hours. They have a very full, sweet and smooth flow that is very musical.
The Project uses 4 old school non over sampling multibit chips with no filtering and direct coupled to the outputs. Very simple. The D1 uses a Crystal 4398 24 bit (8x over sampling I think), and a 192hz USB chip. I would put the Chord Mojo in this category as well, but not as analogue sounding..still some of that digital sheen. Although its a good balance between trying to be smooth and musical, and more detailed as well.
I'm playing with discrete OPAMP's, and trying a few different tubes. Out of the box with Mav upgrade tube and Op amp this has a very good sound out of it's tube outputs. I find the Project FL slightly more refined and smoother, and slightly tighter bass (both have deep tightly controlled bass), but either is a good choice on a budget if you find yourself avoiding your digital music.
I played around with a number of Schiit Mutibits, various Delta Sigma, Bit Stream Dacs, The Schiit's had a addicting sound out of the gate, and are good DAC's, but are hard to listen to over a extended period of time. The combination of a midbass/midrange emphasis, and forward presentation can really throw things off at times IMHO. I found myself being wowed instead of enjoying the music.
Kind of like my experience with DBX lp’s and their noise reduction/ expansion etc.
Many Delta's seem either bright and edgy, or kinda flat. I have borrowed a Peach Tree DAC IT that's has a nice flow (ESS chip) as well, full sounding, but not as smoothly refined as the FL, or as evenly presented so to speak as the FL, or D1.
I think sometimes you have to sacrifice a slight amount of detail, regardless of price, to find a DAC, player, etc to listen over a long period of time. At least for me. What good is "hearing all the detail you have been missing", if your avoiding you hifi system, because you can only handle 1/2 hour or so before you move on to something else?
And for the Schiit rubes..this doesn't mean they are bad DAC's, far from it. They met there design goals with flying colors. They are just hard to deal with over a extended period of time for this cat.
I'm not trying to say it all has to do with the chip type, but the design goals as well of the engineers. I do think if you have been avoiding your digital music, and going back to LP's tapes etc, try a DAC1, or Project DAC Box S FL (the FL doesn't have USB input though). I think you may find a way of enjoying more of your collection, and not avoiding formats just cause you can't stand the sound. Especially in the case of the D1, with the new Trenor 192 chip, computer audio, even MP3's sound very good. Pretty amazing, and you can take advantage of all the free cool online digital music services. I run a optical line to the D1 from my TV, and am totally blow away from piles youtube music performances!! Smooth and enjoyable sound that's fun again. Like your old Pioneer silver Mach One system from the 70's! Remember when it was really fun to enjoy listening to music?
Well I certainly found that with these 2 DAC's. Amazing!!
I guess I have been in digital denial since my first cd player in 1987 (crappy 14 bit Scott player-bit steam-then a kick ass Phillips player with non over sampling). I moved to what I thought was a forward moving position, more detail, new technology etc. Has to be better? Hmmm....not so much.
Even though I still spin the occasional LP, I'm lazy and hate cleaning records and needles, I just want that same smooth and musical sound.