For me, what's a 1000 dollar sub vs a 500 dollar sub via the most popular mfg's? Is it a 10, 12 or 15"? In a room size 10 X 12 foot. Would I need a 1000 dollar sub and notice any real difference having a 500 dollar msrp? What determines the price for a 1000 dollar sub vs a 500 dollar one and any difference in sound quality to MY EARS???? Say, SVS, Klipsch, Yamaha, Paradigm for example??
Which would be the best for 1000 dollar msrp? Would a 500 dollar one do just as well in my room? I say the $500.00 would be just great.
TV: TCL 55" 4K UHD HDR w ROKU
DENON AVR-S910W, 7.2, HDMI 2.0a, 4K UHD HDR, Upscaling, Atmos, Wi-Fi, etc. 
KLIPSCH: L/R: R-51M - Ctr: RP-400C - Sub: R-100SW - POLK S-20 Surround
SPKR Wire:Windy City Wire - 16ga, 2 Cond, Twisted Pair, Shielded, Jacketed [USA]
HDMI: VANCO - 4K, 18Gbps, 2.0b, Certified --- [AT&T - Directv Sat. & DSL 100Mbps]