The Chord Mojo 2 is a cute little DAC/headphone amp. The fastest it can go is 756/32. The Artix 7 field programmable gated array processor is trick in this application because it requires very little power. A 64 bit Floating point processor would roast that little unit alive. You might even burn your hand. It is nowhere near as powerful as a Trinnov Amethyst or the DEQX Pre 8. I hate headphones by the way. I do not like the way the music is presented. It is very unnatural. It is interesting to note that people with the very best systems do not use headphones. I should also note that people who live in apartment buildings might have no choice. I've been there and hated it, I suspect my neighbors also hated me😈
In short, comparing something like the Chord Mojo 2 to an Amethyst or Pre 8 is folly at best. The best comparison to the Mojo would be the MiniDSP SHD another 32 bit device.
The Amethyst and DEQX Pre 8 are full function preamps. Both even have phono stages. Both use 64 bit floating point processors so degradation at low volumes is insignificant. This is extremely important for processors that are being used to adjust volume levels at various frequencies.
Room acoustics are very important and most rooms require some sort of management depending on the type of speaker used.
Room control is a misnomer. It is really speaker control. It repairs and adjusts things that are totally immune to room management like group delays and the variations in frequency response between the two channels. Then there is making the system sound the way you want it to. I boost bass below 100 Hz and attenuate frequencies above 1000 Hz. I have my own "house" curve. I also have a high volume curve which flattens the bass and reduces treble even further. People never realize how loud the system is playing until they try to talk.