Currently I am waiting for my Klipsch RC-64 center channel speaker to arrive so it is time to research subwoofers! My home theater over the past year has gone through a big transformation! From a Marantz SR-8012 receiver to a Sony A9F OLED 4K TV and Panasonic DP-UB9000 4K UHD Blu-ray Player to Klipsch RP-600M bookshelf speakers used for surrounds on speaker stands. Now looking into a possible replacement of my HSU VTF-3 MK5HP Subwoofer and currently I am looking at Klipsch to go with the two pair of RP-600M's and a RC-64 lll center speaker. I am also looking at SVS and Monolith. The key is to get the best subwoofer for the money without having to save forever! I am leaning towards Klipsch and SVS currently!