SetsulSorry, I skipped straight to the GP14.
I don't have anything for the V2 but it shouldn't be too different.
http://www.coolingtechnique.com/recensioni/altro/aio-liquidi-compatti/1280-recensione-nzxt-kraken-x40.html?start=4
So the difference would be more like 3dB total.
Probably should have pointed it it was the rad fan, case fans are pretty quiet so I don't think they need replacing unless there's an alternative that would make a noticeable difference in cfm/noise level.
As I said before isn't 3dB roughly double the volume?
SetsulBecause on paper the ML140 PRO looks decent, slightly lower static pressure and CFM than the NF-A14 or the FX-140KRX but in reality it sucks dick.
I would assume I'd need more static pressure to work effectively with a radiator no? Therefore the NF-A14 industrialPPC-2000 PWM would be the best option?