I have experience at home with the Vitus SIA-025 and the Vitus SIA-030 as well as numerous separate pre/power combos. At shows I have heard the T&A and ch precision.
My view is that the Vitus SIA-030 is a phenomenal amp, better than anything I have ever heard. The SIA-025 also gives a lot for what is a very small box, but the 030 is on another level of amplifier. The pre-amp section of the 030 is exceptional. It is always difficult to describe what it is that makes it sound so much better. I’ll try: of all the high-end amps I have heard it is by far the most 'musical', the least 'hi-fi', and perhaps, to use an overused phrase, the most 'analogue'. All amps at this level will offer great control and dynamics but I find the Vitus offers that extra elusive, magical, 'thing'. The musical image is very holographic too. I cannot recommend it highly enough.
My view is that the Vitus SIA-030 is a phenomenal amp, better than anything I have ever heard. The SIA-025 also gives a lot for what is a very small box, but the 030 is on another level of amplifier. The pre-amp section of the 030 is exceptional. It is always difficult to describe what it is that makes it sound so much better. I’ll try: of all the high-end amps I have heard it is by far the most 'musical', the least 'hi-fi', and perhaps, to use an overused phrase, the most 'analogue'. All amps at this level will offer great control and dynamics but I find the Vitus offers that extra elusive, magical, 'thing'. The musical image is very holographic too. I cannot recommend it highly enough.