Finally getting around to writing this! I purchased 2 pairs of RP-150Ms to complete my Klipsch Reference Premiere 7 channel surround sound. Initially I planned to buy a pair of RP-150Ms for my rear channels and a pair of Klipsch RP-240s for side surrounds. The RP-240s are bipole speakers meaning each speaker has a pair of drivers angled 90 degrees apart creating a wider more diffuse sound field. These types of speakers rely on room reflections to help with diffusion and work best in rooms that are somewhat symmetric. My media room is L-shaped and the seating position is in the middle of the room so bipole speakers aren't as effective. Based on this I decided to buy 2 pairs of RP-150Ms for the side surround and rear channels. Here's the initial impression video. Stay tuned for a full review!