Anthem’s Flagship MRX 1120 11.2 4K Dolby Atmos and DTS:X Receiver – Unboxing and Overview. The Anthem MRX 1120 is capable of power 11 channels and provides processing for Dolby Atmos and DTS:X. Check out the Anthem MRX 1120 at https://goo.gl/3kCRLM