Quote Originally Posted by Vapor View Post
Stackables really aren't the best for 'quiet' anything since they need ~1200RPM fans just to match a single rad.

Stackable config turns the MCR320 more into an "MCR320-GTX" Gain high RPM performance at the expense of low RPM performance.

EDIT: though I'll admit that fans within a sandwich definitely seem quieter. My two San Aces in my shrouded sandwich at ~2650RPM are quieter than the 1 shrouded one at 2450RPM outside of the sandwich.
Indeed.

But I don't think you can fit anything except a single 120mm radiator
stacked in some cases, like my Mini P180, or one of the Silverstone sugos.