Martin Rush Par 2 Zoom Noise

[onemantechcrew]

Hello, we are working with some new Martin Rush zoom fixtures, and notice that they produce quite a bit of noise. (think high frequency buzz, not a fan, nessessarily) Does anyone have experience with this, or solutions to combat this problem? Our theater is small and the noise can be heard over voices; we have recieved several complaints.
Thank You!
OMTC