I have come to see that there are 2 approaches to do 2 channel DSP. One is software based using things like ROON and other software systems that escape my memory. I have ROON and the DSP on it is nothing to get excited about. However, they are continually upgrading their software.
The second 2 channel approach is in a the hardware. There are integrated amps and pre-amps that have DSP built-in and I have focused my attention on the following:
1) Anthem STR (uses ARC 3 for DSP)
2) Linn Selekt DSM (uses SPACE OPTIMIZATION for DSP)
3) Lyngdorf 3400 (uses ROOM PERFECT for DSP, this is an integrated but I would only consider the pre-amp section if I bought it)
4) Deqx (there is a thread on A’gon about it, a little bit more complicated than the other 3 to setup)
These systems convert analog to digital and then apply DSP algorithms based on the inputs you give about your room. There are differences on how each unit takes in the DSP input parameters, each advocating their approach is better.
The Linn SPACE OPTIMIZATION uses measurement based inputs along with inputs on the construction materials used in the room. This system works with ANY speaker. The Linn feature set you are thinking off that works with only with Linn speakers is the Exakt feature for phase adjustments (I think).
So this is my 10,000 foot view on DSP for 2 channel. I only started to research this stuff on Dec 2018. If you are interested look over some of my posts and there is more detail and links to what I learned.
I am going to go today to demo a floor stander that may or may not work in my space. I am hoping this store has the Anthem STR ARC 3 system available to demo. I need to convince them to allow me to do a home speaker demo to see if DSP is need.
A lot of audio ’experts’ have told me to try and avoid DSP if possible. Room treatments are the first choice and as a last resort use DSP.