So a similar piece of software is in other products, that correct?
That is correct.
Where does the mic come into the solution?
Most software uses a microphone to measure the room modes,
Linns method uses a software model of the room and adds knowledge about the the speakers being used (meaning that if your speakers haven't been measured by Linn, the default results are worse).
If you have a squarish room, the old version of Linns software did pretty well. My room has a very difficult shape, so by default the results are mediocre, to say the least.
I also used RE, with a microphone, to measure the room, and it did find the same major room modes that SPACE did, but where it, and I, went wrong was by trying to 'fix' everything; the end result was that all the life was sucked out of the music.
In the end I was very fortunate that one of the Linn forum members, who has had done over a 100 SPACE optimisations, visited me, and he used SPACE as a starting point, but than starts fine tuning to exactly pinpoint the culprits.
The end result is that my setup now sounds great (which is of course what I would say, so do with that whatever you want).
As Linns new implementation of SPACE is capable of handling funkier shaped rooms, and adds a lot more measurable parameters, the default success rate should be better. So that is good news for a lot of people.
The downside is that the Linn forum guy visited a lot of active forum members, and chances are that his manual tweaking still easily beats the new software.
My 2 cents is that that is why they closed the forums; if the majority of active forum members don't like the results, they get bad press, even if/when the software is doing OK.
Anyway, most people can gain a lot by using software, as most rooms add things to the music you don't want. So by subtracting the room from your music, you end up getting closer to the recording.
@sq225917: I wouldn't say that Linn is a acting like a sheep herder, but they do make it a lot easier to end up with a great sounding setup without having to visit shows and dealers all of the time to figure out yourself what sounds best together.
I can understand that a lot of people actually enjoy that process, but it is not something that I enjoy myself. So when I entered the world of high end audio, I decided very quickly that I wanted a single brand solution, and by chance I ended up with Linn.
Yesterday I went to a friend who has a very mixed setup, and even though I paid more for my current components, we sort of spend the same amount in total, because he has invested a lot of time, and fuel, in a lot of listening sessions in different places.
As I went fully digital, I only have to worry about a single source, meaning my setup is more focussed, and this is why my setup beats his. He owns a lot of vinyl, meaning his investment could actually be making a profit, where mine obviously is just a bunch of stupid boxes.
So Linn is not for you, that much is clear, but that doesn't mean that their, or mine, approach is worse than yours. It's just different.
If your setup sounds great, good for you. My setup, with a lot of Linn components, sounds great too. Good for me.