I recently purchased a used Vista Audio Phono 2 preamp. It is replacing my Bellari VP-129 that uses a very special 12AX7 tube from the 1950's that took the Bellari to higher heights with a much better sound quality. Without this tube the Bellari is mediocre sounding at best. With the 1950's Raytheon tube with the shiny black plates, the phono preamp sounds way higher end. I would not have used the Bellari had I not found some of these special tubes. Unfortunately, it developed a very loud hum so I bought the Vista preamp to use until I can get the Bellari fixed.
My system consists of a fully refurbished Thorens TD-145 TT with an upgraded plinth. Cartridge is a Nagaoka MP-200 (a wonderful sound cartridge), Preamp is a BAT VK51se, Amp is a Pass Labs X250 and speakers are the Magnepan 1.6's with dual Martin Logan subs.
After listening to the Vista I am not so sure that I will fix the Bellari. I am very impressed with the Vista. It has a huge, tall and wide sound stage with good transparency. It is very dynamic although not quite as much as the Bellari. It has faster, tighter bass and its top end is little smoother. There is good spacing among instruments. It has good, not great detail. Overall, it is very musical and smooth sounding. It leans slightly to the warmer side of neutral but not nearly as colored as the Bellari.
I have had other phono preamps in my system and the Vista is comparable to some of the more expensive ones. It compares favorably to the Van Alstine phono preamp but there are differences. The AVA phono has more transparency air and detail but it is not as dynamic. The Vista had a fuller sound (not necessarily better, just different).
I also had a Lounge Audio LCR Silver phono preamp which was a great sounding phono pre that I considered buying but it was a little grainy sounding which I tired of quickly.
My only knocks on the Vista is that I wish there was just a little bit more detail and I would like the blue power light to be dimmer. The detail is good not bad but I wish it has a little more resolution. It would also be nice if it had XLR outs but hey, you can't always get what you want as the Rolling Stones song says.
Overall, I get a smile on my face when listening to the Vista Audio Phono 2.
Larry