I also have a Cambridge DacMagic (no Plus) - w/o testing I understand that newer designs have surpassed this fine DAC.
dunno if the ones that are said to be better are < $500
ones to check on or test:
Gustard
Oppo Sonica (used? refurb? stretch to $600?)
Emotiva
iFi
and see if any Schiit products will fit your budget
dunno if the ones that are said to be better are < $500
ones to check on or test:
Gustard
Oppo Sonica (used? refurb? stretch to $600?)
Emotiva
iFi
and see if any Schiit products will fit your budget