Best pump for a quiet wavebox?

[Enderg60]

So I love my tunze wavebox so much I had the box built into the tank overflow. But my wife is not a fan of the "noise". I can run it at about 30% to get it pretty quiet with a decent wave, but now Im wondering if there is a good alternative pump I could use that could do it quieter?

 

[blaxsun]

Is the "noise" vibration-related? ie: by building the box into the overflow did you increase the noise or did it have no effect?

 

[Enderg60]

Its mostly the start stop sounds. Ive got the pump in a sponge like the stock wavebox, but with a bit extra, to isolate it for vibrations. Its also the newer pump but I forget the model number.