Yes, normally there would be a fuse between the hot leg of your AC cord and the DAC circuitry, but if you want to live dangerously, you can directly connect the + leg of the circuit to the hot tab of your IEC outlet, bypassing the normal fuse position.
Certainly, the best sounding fuse is no fuse, but if you get an AC surge, then some other component in the DAC is going to overheat and blow.
Certainly, the best sounding fuse is no fuse, but if you get an AC surge, then some other component in the DAC is going to overheat and blow.