return pump loud

I am in process of setting up a new RedSea 525 G2+ tank. For better or worse I am also using a lot of RedSea equipment. So far the tank is doing great---after 2 hours of messing with the return pump and RedSea drain valve I do not have any issues with the drain pipe noise so many have run...

I might just be the unluckiest person in the world, but of all the return pumps I bought after reading reviews describing them as "dead silent", 50% were really loud. As in "can hear across the apartment" loud. AC: Sicce Syncra Silent 3.0 - loud Sicce Syncra Silent 2.0 - Pretty silent after...