NAD M32 may be a contender. Upgrade from the C388 in the amp section. Where C388 has Hypex UcD, M32 has Ncore? (upgrade from Ucd in the Hypex line) - lower THD and higher dampening, better front panel display and remote than C388. What I find about M32 spec's doesn't paint the best picture...
https://www.soundstagenetwork.com/index.php?option=com_content&view=article&id=1697:bhk-labs-measurements-nad-masters-series-m32-directdigital-dac-integrated-amplifier&catid=97:amplifier-measurements&Itemid=154
If its not an immediate and obvious improvement - there is little value justifying the spend.
If its not an immediate and obvious improvement - there is little value justifying the spend.