Hello, I am extremely new to home audio so any and all help is appreciated. I have the chance to grab an MRX 540 (with ARC and mic kit) for $750 USD or an X3600H (without mic) for $500. I have just started scrounging up components for my setup, which so far is only a pair of B&W 607 S3s, and I was additionally looking at someone offering a combo of a Martin Logan SLMX3 (I was looking at getting this as a center channel purely for dialogue/vocal clarity but I’m not sure if it’s necessary) and Dynamo 700 for $600. So my questions are which of the two AVRs would you choose, and what else should I grab to finish my setup. Additional context: I live in an apartment so I cannot be blasting any setup regardless of how much I spend, but I want to buy something worth keeping for at least another 5 if not more years. Any other suggestions are welcome, thank you!