You should be able to find at least 14 awg. The proper name for that connector escapes me but find the proper name and that will help your search.
Jerry
Figure 8 ('Infinity') Power cord
My Emotiva TA100 integrated came with an 18 gauge detachable power cord. The connector is the so-called figure 8, nit IEC. Is there any point to upgrading? Unable to find larger gauge, nmch less better wire.