Actually Philimon I got the 1852. I had originally ordered the A version with the 8741 but then I sort of came to the conclusion that the sound signatures of both versions were too similar based on comments in other posts and threads to justify the difference in cost. Something that AVU seems to confirm in his post just above. I will be forming my own impressions soon enough, My biggest concern after reading some of the more recent comments is that the Sparrow is likely to make my MS2's even brighter than they already are and that's not the direction I want to go in. Although it sounds like the Sparrow may have great synergy with the HF2 and that's a headphone option that I'm contemplating.
As far as any imbalance issues with the uDAC I dont think so, it seems to be working properly. What is it your hearing with your uDAC?
I think the 1852 is the wrong match for an already bright headphone. By the way I have tried the MS2i and I liked it, because I had read it was excessively bright compared to other Grado but I was pleasantly surprised to find that it wasn't the case. Unless the regular MS2 is that much different from the MS2i... Or perhaps I had tried the MS2i, but was recalling what I had read about the 325i. Hmm, never mind.
I am too interested in keeping the 1852 in order to try pairing with headphones with some rolled off upper frequency, and to see if I can find good synergy. I've tried the HF2 at a meet and it was definitely the warmest sounding Grado, and so perhaps it would be complimented by the 1852. The HD600 was on sale new last week for $225, and I would have picked one up if I hadn't already ordered something supposedly very similar in sound (FA003).
I believe it is the left channel that is slightly louder on my uDac. Several other people have complained about the same thing in the uDac thread. One owner sent his back to the company for a replacement due to channel imbalance, and I believe he ended up replacing uDacs a total of 4 times. I don't know if the 4th worked out for him or not...
I forgot to mention that the original 8740 is supposed to have a bit of treble roll off, and perhaps that would work to benefit a Grado type phone that you might think is too bright? On the AudioGD website it says that the 8740 has been re-voiced to sound more neutral, so you may no longer be able to pick up the original 8740. You could try asking if you could get the old WM8740, or try picking up somebody's old 8740 DAC module and solder that into your Sparrow.
Edited by Philimon - 9/26/10 at 7:51am