Hey guys, looking to replace my stock fans of the ID-COOLING A720 Frozn because they are really loud and make a high pitch noise that hurts my ears. Recently bought it. Great cooler, just the fans are super loud and high pitched. I was recommended Noctua fans, specifically the NF-A14x25r G2 PWM Sx2-PP. Unfortunately they are not available in South Africa and to import them will cost almost the same price as buying a new Noctua cooler. Do you guys have any good alternative fans?