7.1 4 k Processor Rec

Good luck. At that price I cant recommend a McIntosh piece but thats what I would do , find a pre owned McIntosh that does what you need  or bite the bullet and buy new.

Matt

If you can find a used one :

Bryston SP3 Surround Processor.

Also :  Rotel RSP  1576 MKii

Krell Foundation 4K

https://www.audiogon.com/listings/lisb72da-krell-foundation-4k-a-v-processor-digital?refsource=hifishark

I like Anthem for sound quality, but the EQ/DSP capabilities are generally lacking IMHO compared to Marantz but this may be something only a DSP geek like me might care about.  The advanced Audessey versions let you hand craft DSP curves.

@soix thanks.  Definitely one I have been looking at.

This Anthem AVM70 would be worth a good look I’d think…

https://www.ebay.com/itm/364534064853