I'm looking to expand my pair of Ones in the living room with a Beam in the kitchen, to effectively get surround sound with the Ones next to the sofa and the Beam right in front, since the sofa is facing the kitchen. First of all, is this a good setup? I'm mainly using the speakers for music, and sometimes video via airplay.
What are the dimensions of the two holes under the Beam? I was thinking mount the Beam flush with the kitchen cupboards, by drilling two holes in the cupboard under the microwave (picture attached) where there is space for screws (that are in the two bottom holes of the Beam), flip the speaker upside down, and secure it with bolts/nuts & rubber washers (to minimise vibrations) from above. Avoiding a Flexson mount would get the Beam closer up to the cupboard.