i use a Sony receiver with 5.1 surround sound and have that going to my pc, but i wanted to upgrade my speakers so i bought some new ones on amazon which are two rear and a subwoofer. but when i looked at them they only have inputs for rca (red and white) cables, but my receiver only has normal speakers wire inputs. i obviously should have read about them fully before i bought them but i just figured they would have speaker wire inputs since they are speakers. so my question is, is their anyway to connect them to my receiver and are rca cables just the standard now? Thanks in advance.