I really want monitors for my PC instead of 2.1 sets, but I keep reading about hissing problems on all of the monitors I want to get. Would a krk RP5 hiss when plugged via RCA to my titanium HD? or should I get an Audioengine A5+, they must be tested for RCA use without hissing like creative speakers? (I had Gigaworks T40 and they didn't hiss)