Worth to change Swiftech MCR320 to Feser Xchanger?

[Martinm210]

That's true. Alot of the earlier reviews that I went back to and tried to understand more about all tested with fans in the 600-900RPM range. This is an area where the PA is strong, but from what I understand in the fan poll we had here, the majority of users actually run fans in the 1350-1550 RPM range.

Unfortunately performance of any radiator now matter how well optimized for low speed fans, drops significantly when you start running fans that slow. Even the MCR320 for example achieves over 3X the performance with 3000RPM fans vs 1000RPM fans, a similar scaling occurs as you further reduce fan speed. It is an option though, string several radiators together and undervolt the snot out of the fans and you can get the same or better performance as one radiator with one strong set of fans. While I've spent enough years in a plywood mill and a machine shop to abuse my ears that I can't hear a 1000RPM fan, I've heard some people say they are too loud. For those folks stringing several radiators together and running ulra low speed fans might be the best way to go. Ultra silence does cost some $$ though..