@wad, after my last post I saw below, under "Similar threads", your other 7 April thread on this same topic. FWIW, it's usually best to continue the old thread when it contains useful context for those able to help. Doing so willl also notify those who previously provided good advice about your ongoing challenges.
No worries - know that you aren't unique in being an owner of audiophile-level speakers and subwoofer in a 2.1 setup who, even with an AVR equipped with Audyssey, is unlikely to get things properly (or 'optimally-within-reason') setup for their unique choice of speakers and subwoofer in their unique listening space. This subwoofer config challenge is why your Denon AVR has Audyssey in a 'black box' with an optional software upgrade, and it's also why devices like MiniDSP and the WiiM Ultra have been evolving and selling well over the decade since your Denon was designed (it also happens to be the main reason why I bought a Wiim Ultra for myself).
Your Denon's Audyssey setup would be your better and only choice for a multichannel surround setup with time-alignment and room correction speakers around a wide seating area. But for your "2 channel music only" goal, WiiM's RoomFit allows us to see exactly what the room correction process is doing, so that we can also use that info to get your SVS subwoofer's DSP to do the heavy lifting below your crossover frequency, and let the WiiM DSP can focus on a cleaner steeper crossover and Left & Right channel room corrections above the crossover.
Your Denon also has no idea that your mains are more awesome than "Large" and should probably have a steeper high pass filter at like ~60Hz instead of 80, with your also-awesome-subwoofer picking up everything below that point and doing an even better job amplifying it at the right level.
Anyway, given your efforts to adjust the volume of your SVS subwoofer - at one point setting its volume/gain as low as -45ish - it sounds like your room gain is substantial. I'll make an SVS-specific suggestion to use the SVS app and set your SB3000's "Room Gain Compensation" to it's least forceful bottom-end HPF. I think it's at 25Hz with a 6db slope. Then set the sub volume, still using the SVS app, to like -15 (it defaults to -10 if its like my SB1000Pro). Move to the WiiM home app to set your subwoofer crossover and "subwoofer-speaker time sync". Next, run "sync audio" (Devices > Ultra Settings > Sync Audio) and finally run RoomFit and share the results here with screen shots of the RoomFit Left and Right PEQ tables and measurement graphs shown at the end of the process.
No worries - know that you aren't unique in being an owner of audiophile-level speakers and subwoofer in a 2.1 setup who, even with an AVR equipped with Audyssey, is unlikely to get things properly (or 'optimally-within-reason') setup for their unique choice of speakers and subwoofer in their unique listening space. This subwoofer config challenge is why your Denon AVR has Audyssey in a 'black box' with an optional software upgrade, and it's also why devices like MiniDSP and the WiiM Ultra have been evolving and selling well over the decade since your Denon was designed (it also happens to be the main reason why I bought a Wiim Ultra for myself).
Your Denon's Audyssey setup would be your better and only choice for a multichannel surround setup with time-alignment and room correction speakers around a wide seating area. But for your "2 channel music only" goal, WiiM's RoomFit allows us to see exactly what the room correction process is doing, so that we can also use that info to get your SVS subwoofer's DSP to do the heavy lifting below your crossover frequency, and let the WiiM DSP can focus on a cleaner steeper crossover and Left & Right channel room corrections above the crossover.
Your Denon also has no idea that your mains are more awesome than "Large" and should probably have a steeper high pass filter at like ~60Hz instead of 80, with your also-awesome-subwoofer picking up everything below that point and doing an even better job amplifying it at the right level.
Anyway, given your efforts to adjust the volume of your SVS subwoofer - at one point setting its volume/gain as low as -45ish - it sounds like your room gain is substantial. I'll make an SVS-specific suggestion to use the SVS app and set your SB3000's "Room Gain Compensation" to it's least forceful bottom-end HPF. I think it's at 25Hz with a 6db slope. Then set the sub volume, still using the SVS app, to like -15 (it defaults to -10 if its like my SB1000Pro). Move to the WiiM home app to set your subwoofer crossover and "subwoofer-speaker time sync". Next, run "sync audio" (Devices > Ultra Settings > Sync Audio) and finally run RoomFit and share the results here with screen shots of the RoomFit Left and Right PEQ tables and measurement graphs shown at the end of the process.
