LCD-3 is actually not to hard to drive.
DAC/Amp Combo is tough esp all the price range you are thinking (~$450, ~$2500 total for cans and amp/dac)
At that budget maybe consider dropping to the LCD2 and get a Violectric V200 which would leave you around $500 for a decent dac?
Not knowing where your priorities lie in terms of music listing, you may like the LCD2, but when I had it, I kept looking for more. More treble extension, more mid range, cleaner bass and in all aspects, I much preferred the LCD3, I was of the minority that was not overly impressed by the LCD2, and thought I may have been a thru and thru Sennheiser guy; if my wife told me I could only keep ONE headphone, I would take my HD650s above all.
My recommendation, would be to spring for the LCD-3 see if you think it sounds good enough, it's much easier to unload a headphone then a amp/dac. I think your UDA-1 may be better then you tihnk. Worse case, you keep it as a DAC and add an amp; I'd still recommend the v200 for this purpose.
Originally Posted by Simon T
Thanks for the heads up GloryUprising. I was planning to order it online from Moon Audio, is there anywhere else I should buy it from (online)?
If you're visiting the East Coast, Drew at Moon Audio is a good source (I am, however, partial to Justin @ headamp as a local Virginian).
If you're visiting the West Coast, talk to Todd at TTVJ.
Edited by GloryUprising - 2/17/14 at 9:26pm