IB318 v2 - pole vent noise a concern?

[wori]

For those that have used the IB318 v2 drivers, do the pole vent or coil vents contribute noticeable noise? I am thinking about mounting one of my two new drivers inverted. I will design the manifold slightly differently if so. I would prefer not to mount them that way if it will cause audible chuffing/hissing/etc. 

So excited to finally have these and start my install. Wife and pup posed with one of them for me. 

[ThomasW]

To date we've had no complaints of noise from those drivers