Well i have to admit the Vitus is a much better match for my speakers than the Audio Analogue.
The Vitus is very smooth and liquid sounding on pretty much all recordings which is not the case of the Absolute.
The Absolute is not as forgiving on bad recordings and with my speakers it can get harsh in the trebel and even much worst with my Diablo 300.
I think that my system is finally very well balanced with Cardas Clear Beyond cabling and the Vitus SIA-025 Mk2.
I have commended the Vitus025SIA in other threads, but missed this one.
I had one for several years before upgrading last year to the 030 which indicates how much I like the Vitus amps.
The 025 gave me tremendous pleasure and satisfaction. The build quality and aesthetics are both very good and your description of the character of its sound bear out my own experience. Yes the 030 is even better as it should be at the price, but that doesn't affect my view of the 025.
I am sure you will be very happy with it if you so choose.I have not heard a better one at that price.
I have the slightly older Vitus SS 010 and it doesn't change in sound after a couple hours of warm up. I also find that I can switch it to Class AB mode as an "idle" mode and it sounds all the same after warm up and switching back to Class A for listening.