compare the EMM DAC2 against the MBL 1511 or 1611 DACs?I haven't compared but I've heard both MBLs and the dac2, in the same system.
Value for money wise the 1511 is recommended. So is the emm dac2; the sound is more perky or crisp (sort of bright) vs. the 1511.
HOWEVER, id you;re looking for some improvement, I urge you to consider better amplification. Not that your Gamut is bad, but it looks like the rest of your system is superior. Regards