silence ?
understand how it works - with
any system
jiggle the actual values on both axises, that curve never changes
so, how much cooling will your ears tolerate ?
note: this data on a 2" core
the 'silent' solution (from Swiftech at present) would be 1 or 2 MCR120s with a Pabst fan or similar (with lower performance accordingly)
listen all, the big hose - small hose 'issue' is quite the same for noise; going for less noise will cost in terms of performance (and space also - larger rads and fans)