The AP9639 is a black dust cover for your Qu-32/Qu-32C which is designed to cover and protect your Qu-32 mixer from the elements. Plus it is water repellent. The top of the dust cover has the Qu-32 logo with Allen and Heath in the lower right corner.
CALIFORNIA PROPOSITION 65 WARNING
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.