Wave-maker noise ????

[Skimmer Juice]

Was wondering peoples thoughts on the noise wave-makers generate underwater . Just hooked up a jebao pp-20 in my 48x48 cube bought this as I thought my wp40 was loud . However the newer one is just as loud , I cant really hear anything until I put my ear on the glass . So Im guessing my puffers don't really care for the noise they show no signs of stress but I think the noise of the propeller would be annoying .

Is the same type of noise present with a gyre ?
Or would I be better to just get the quite drive ecotechs?
I don't need huge flow just something extra to create some waves . There is no coral in the tank well some leathers that my puffers won't eat . Like I said tank is 48x48x20 tall center overflow , don't mind having the device on the glass, have 2 returns I can aim wherever . So whats my best option keeping in mind the noise inside the tank that the fish have to listen to as #1 priority .