I have a situation where I can only use ceiling mount speakers for my rear surround speakers. Currently I have some no name 6.5" two ways mounted in the ceiling that aren't doing the job. I'm looking to get 4 of either the Miccas or Polks to cover rear surround and for ATMOS top/middle overhead (5.1.2). My fronts are KEF Reference Model 2s and a KEF 100c center. The receiver will be a Yamaha 2060 that I'm swapping my current Arcam AVR300 for. I can get 4 Miccas for $200 shipped and 4 Polks for about $250. Any others I should consider in this range? Thanks for any input.