Almost 2025 and still no comprehensive EQ for AMP. 

I can understand limiting all-in-one Sonos speakers and soundbars etc. to bass/treble controls in EQ. These products have most likely been carefully voiced and I’d assume they don’t want to provide users a way to detrimentally alter the sound with aggressive eq’ing which could damage brand perception. Maybe that’s not the case and they just simply want to keep the app easy to use / configure.

Either way, AMP users should be provided a more detailed EQ option, since the amp is paired with a myriad of 3rd party speakers, all with unique voicings. If the line-in wasn’t so poor, you could theoretically EQ somewhere else in the signal path, and then use the amp like a power amp, but that kind of defeats the entire purpose of being in the Sonos ecosystem. 

The Wiim amp at $299 offers a 10-band parametric EQ and a 10-band graphic EQ (and high-res streaming up to 24/192 - but that’s another discussion).

I doubt this is a hardware issue, because there’s a basic EQ in the app, speech enhancement essentially bumps the mids, and also night mode performs some kind of compression/limiting proving that the DSP is more than capable of sticking a few more bands into the user-controlled EQ section.

Please???