short answer, yes, at 4 Ohms, it's about 60A or so.
the output is throttled at 1 Ohm to the same as a 2 Ohm output so there, the current draw stays the same. since with a class D amp, the signal is reconstructed at higher power from a digitally sampled input source signal, the amount of power the amp puts out on the far end can be throttled that way. In the case of going from 2 to 4 Ohms though yeah it's simple Ohms law, with about a 20% fudge factor added on top for efficiency and heat loss.