Okay, spent a day with my new 1212m. Compared with the AV710 that I've used for half a year now and am very familiar with its sound, I have to say these two cards sound very similar to my ears. It wasn't a "plug-it-in-and...WOW" experience. The 1212m seems somewhat more refined sounding. Maybe bass attack/punch is smoother and more natural. Maybe the bass reach is lower, or maybe it isn't muddy. Mid-bass and low-midrange smoothness, if anything, would be what I would say sets these cards apart. Midrange and treble sound similar. I'm not planning to get rid of my 1212m, but the AV710 doesn't sound leagues apart and confirms all that old thinking (before the AV710 trashing started
) that the AV710 is a great value. IMO, this 1212m that costs 8x the AV710 doesn't sound 8x better, but that's a matter of opinion and personal finance. In other words, I'd look at a *different* card if the AV710 doesn't make you happy, not a 1212m as they sound very close, only one is 8x more expensive. This is definitely a much smaller step up than, say, getting quality headphones or speakers compared with your cheap headphones or earbuds, or a nice amp where you previously didn't have one.
With this in my office speaker rig, I tried pulling my Millett hybrid tube preamp out of the mix and running signal directly from the 1212m to my T-amp, just to see if I could get away with it. Within an hour I had put the preamp back in place. The difference there was significant, much more than the difference between the AV710 and 1212m.
That's my opinion (and I'm sticking to it
).
-coma