That inexpensive little amp is unbelievably good with Audeze. Used it with my LCD-2.2, LCD-3C, LCD-X, and now LCD-3F. Especially when you do a few simple mods (be careful, the PCB is very fragile). No noise, superb dynamics, wonderful tone, great PRAT -when called for. Even has a 3.5mm headphone jack on the front face. And the wood trim is Zebrano to match my LCD-3.
In the Sophia Baby, replace the 2 stock rectifiers in the voltage doubler PS with high voltage Schottky's, RCA inputs with Eichmann, trash the stock Chinese tubes and get good 1960-70s vintage Soviet Military 6N1P-EV and 6P6P-EV tubes on Ebay. Did that to my $150 Meng Music Angel (same amp as the Sophia) along with copper Obbligato coupling caps and it slayed my Mjolnir. Better highs, better bass, more emotion in the music. BTW, the Sophia is PP 6P6P pentode wired.
http://www.ebay.com/itm/Music-Angel-Meng-MINIP1-6P1-x-4-Push-Pull-Valve-Tube-Integrated-Amplifier-BK-/310818347087?pt=US_Home_Audio_Amplifiers_Preamps&hash=item485e37984f
I've since built my own PP 6V6 triode strapped amp with ElectraPrint Partial Silver OPTs that is quite a bit better. But that little Meng Music Angel can really hold its own. Its a sweet little amp. Even used it as my everyday amp to drive my Altec Model 19s.