Surround speaker rec for Atmos sides/rears
Once again I’m turning to the AVS braintrust.
Researching a future speaker upgrade and need some advice. I’m currently running an 7.1.4 Atmos setup with Martin Logan motion 40s for front LR, Motion 30 center, with Polk RTI A4s for my sides, and Polk FXis for my rears.
Just got a larger sofa, that basically goes wall to wall, so my wife and I are looking for a surround speaker upgrade that will both improve sound quality for the surrounds and also lower their profile as our guests will end up sitting closer to the side speakers than before.
I’m open to suggestions, but am currently considering motion 15s, motion SLMs or Motion 4is. Has anyone compared these speakers? I assume the on wall SLM will be the worst option sonically, but is it a big enough difference to matter when used exclusively for surrounds? Would all of these speakers be upgrades over my polks? Any other suggestions for rear speakers?