WiiM vs Cheap AVR

I've been trying to figure out how to power the new 3 way towers I am designing.

They will go in my living room and be fed by the TV using HDMI ARC. I need HDMI ARC so that I can control the volume using only the TV remote. It is a Sony X90L
I also want to pair this to my Alexa system so that when I say "Play Music Everywhere" it also plays on these speakers. The only way to do that is if it can be added to the "all speakers group" in the Alexa app

This leaves me with 2 choices:
1. WiiM amp
2. AVR receiver with HEOS

I'd just grab the WiiM but for two things that I would clarification on.
1. I heard that the equalizer will not let you allow your main to channels to play the full bandwidth as it saves that for a sub output that I wouldn't be using
2. I also came accross that its circuitry is so designed that the class D chip isn't utilized for the very low end
Since these are 3 way speakers with a bandwidth of 30 hz all the way to 20 khz I need full bandwidth from the amplifier I use, Are either of these bullets true?

A cheap, entry level AVR seems like it would also fit the bill but I have heard that these do not sound well and the HEOS integration using interface is very poor

Does anyone have any other suggestion of what to use here?
Again, my parameters are HDMI ARC, Alexa integration, and full bandwidth power.
 
Unlock a world of sound customization with the WiiM Amp. Whether you're integrating ceiling speakers, reviving vintage audio gear, or optimizing your TV's sound, our robust suite of EQ options has you covered. Choose from 24 preset settings, fine-tune with a 10-band graphic EQ, or dive deep with a 4-band parametric EQ—all easily accessible in the app. Plus, enjoy the freedom to set independent EQ profiles for each input source, be it HDMI, Optical, Line, BT, or Network. Craft your perfect audio landscape, room by room, source by source.

"reviving vintage audio gear" seems to me that it will be putting out the full range to the speakers, and you can EQ if you like. I don't get the impression that a sub woofer is being forced into the mix, just an available option. I've looked at wiim in the past, but chose a pair of Fosi Audio TB10D's for the kitchen and deck speakers, they are not as capable as the Wiim, but, they were cheaper.