I use the AVR Audyssey microphone, for calibrating the room speakers. With my set-up and placement of MATCHED front speakers, the crossovers are 60HZ across the board, including the surrounds.
I use the LFE subwoofer input and set the subwoofer at half gain/volume, before speaker calibration. After calibration, I reduced the gain/volume to 1/4, for my overall listening. I have a button on the remote for DD surround for Netflix movies, and the music button is set for Multi-channel mp3 music.
Since I have this Audyssey calibration with my AVR, 60HZ crossover, it is where it is at.
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]
Last edited by teetertotter; 06-25-2020 at 09:24 AM.