@ttocs - TRINNOV Bass Management Special for you. [as trying to describe everything you can do I would probably spend next 3 weeks just typing]. I will be referring to MiniDsp/MSO, Audyssey as reference points and to channel count of 20, which is my current config, expandable up to 48 for around 500 eur/channel cost.
My idea of getting TRINNOV was to finally merge my Stereo and HT setup with 1 Preamp and not to have do some silly configuration [AV to Stereo Preamp for L/R and 2.0 listening, Streamer connected analogue to Stereo Preamp AND digitally to AV to utilize DRC and subs]. From Sound persepctive - TRINNOV combined with Purifi/Hypex& ML - this is as transparent sound as it gets. Also with quiter high voltage [6V] going out, I could set Purifi amps to 20dB overall gain which makes it dead silent for Stereo. I really like what I hear for Stereo, which is approx 50% of usage.
Where to start - TRINNOV is extremely flexible - you have 29 configuration presets, that are completely independent in every aspect [measurements, speaker assignment, target curve or any other imanigable setting] - in my case I have 2.0, 2.4, 7.1.4, 7.4.4, some doubled for multiple seating positions [so 7.4.4. 1 seat, 7.4.4 2 seats, for example] this combines with 28 freely assignable inputs [you can use one input several times} - e.g. Apple TV Netflix, Apple TV HBO, Apple Music Stereo, Apple Music Spatial and assign to HDMI 7 input whichever preset you want [and you can change them on the fly of course. E.g. I have preset "****** Audio" for poorly recorded movies , you get the idea.
Bass Management is real highlight, compared to Denon, is on a different planet. Funny though - MiniDsp is widely used in TRINNOV community for 1) channels saving - there are lot of people that get limited with 20 channels available, so they do 11.1.8 with SW handled by MiniDsp [ALt 32 is modular so you can add channels in batches of 8, ALt 16 is limited to 20 channels] and 2) there is no real "MSO" option, so either you do "MSO emulation" [you run all the REW measurements you need to, then run MSO and type in manually PEQ/gains/delays] and run all the subs as array [max 4 apiece]
so let's look at my example - 1x1600 [soon 2], 2x1100, 1x800, ESL13A, C18, 2x Source, 2xMotion 8i and 4xMotion 4i [soon 6] as height speakers.
4i's - they really come alive at around 110Hz - normally you would cross them over, as appropriate, which is already audible.
TRINNOV allows you to re-direct to ANY other speaker, in this case L, as you can see - you can choose LPF, HPF, filter type and slope. Subsequently, if you choose to re-direct from L&R to subs - it will get redirected too. Cool thing. I have one setup, where I run L&R down to 30Hz, so I am testing C18 - at 80 Hz to L&R and then to S1&S2 at 30Hz - really creates enveloping screen speakers sensation.
ANother incredible option [at least for me] - in other AVP's I always had the issue of phase cancellation in Xover frequency - I had either L&R right or Center right, never managed to get both of them - TRINNOV can invert polarity on individual speaker signal and set-up individual Bass Signal gain. Is definitely audible [you need REW to measure and validate]
Another interesting option - you can compensate for "stacked subs" - ones that excite the same room modes.
My planned set-up after I receive my second 1600X
2x1600x - placed in front corners - set up as mono, optimized with MSO for 2 seats - playing LFE & redirected L&R from 40Hz and below in movies
1x800x - placed in front - next to Center - dedicated just to Center signal, creating 4 way C speaker playing down to 40Hz and rest redirected to 2x1600X
1x1100x - mid rear wall - dedicated to S, SB and Heigt surround&Back, probably as from 50Hz [actually this one is like 1.5m from MLP, so there is more than enough air pressure.
1x 1100x - nulls filler for LFE and L&R [placed somewhere randomly - probably one of rear corners.
For Music, I wil just melt them into 1 Mono Sub, run MSO and that's it - Xover at 55Hz works best for me.
but I don’t embarrass easily, a benefit of being in my 70s. 
