My preamp arrived back from AVA on Monday evening. In addition to the new Vision phono, Frank updated my tone controls, etc to Insight + status. I did not critically listen, but my first impressions of the Vision phono versus my previous Insight phono are:
1) the Vision is MUCH quieter. Now, I thought my Insight phono was quiet (never perceived a problem with extraneous/extra noise), but WOW (you'll see me use this word a lot) the updated preamp as a whole is much quieter.
2) Instruments, soundstage, in general everything is LARGER. I have a VPI Classic I with a Sumiko Blackbird HOMC is several years old. The rest of my system is composed of a AVA Insight 440H and Magnepan 3.6R's. I view it as very 'revealing', due in part to the AVA's ability IMHO to point out good vs less-than-good recordings, matters not the media (I also use a AVA Insight DAC for CDs). On Blue Note reissue LPs (Larry Young
Unity), the mix is now more broadly approached and to my ears sounds much more cohesive, versus a more old-style left-right mix from a a stereo or a mono master. On Bill Evans'
Waltz for Debby, the opening cut
My Foolish Heart brings one into the venue (recorded live). With the Vision phono and the system as a whole, I was brought much MORE into the venue. I love this recording's ambient noise (people speaking, glasses clinking- it unnerves my dog as he looks for these extra folks in my listening room). With the Vision phono I was more THERE, than before (WOW). Additionally, on this first track, Paul Motian uses brushes on the snare. With the Insight phono, I wondered a lit at first what this "noise' was; it took my 55 yo ears to identify it as a brushed snare. Afterwards, whenever I listen to this LP, I reminded myself this is a brushed snare, so I could enjoy the music. With the Vision phono, I not only knew immediately it is a brushed snare drum, I could HEAR the volume of the air inside the snare, and the subtle changes in pressure Paul was applying to the drum head via the brush. Amazing, and....WOW.
3) Less than stellar recordings still sound thus. I picked up the two disc reissue of Metallica's eponymous 1991 album. This recoding always sounded 'hot' to me, lots of zippy high end. With the previous Insight phono, I could localize the drum kit pretty well. With the Vision phono, in my system, the drums are now more integrated into the mix; cymbals sound great and are much larger in presentation. On this quick listen, it seems for this recording the Vision presents a more cohesive and integrated soundstage, but one that for me has lost a bit of the precise instrument placement. Just my first impression; I don't listen to this album a lot. Presentation of the soundstage is overall more coherent. The Maggies have a definite sweetspot, and you who own them know they are 'beamy'. With the Vision phono, I could immediately perceive much more lee-way in where my head/ears were located relative to the speakers, and mush more forgiving if I moved my listenting position. This is a big change from what i was used to. I'll have to listen a lot more and let you know what I think.
4) While my Insight pre-amp was at AVA, I was listening to vinyl via swapping an vintage (ca 1980) SAE 2900 preamp. The SAE have a MM phono stage and I listen mostly without using tome control, loudness contours, etc. When swapped in, I could tell an immediate difference versus my Insight phono. Instrument timbres were fundamentally 'right', but the presentation had no air and was very 'flat'. With the Vision phono, as I mentioned earlier, everything is presented LARGER. Cymbals are huge; the fundamental instrument timbre is there, along with a lot more air. The high-end is very extended, more than enough for my taste, and subtleties in the mix, such as when a sax player steps closer to or farther away from the mic, are a lot more clearly apparent with the Vision phono versus the Insight.
5) I didn't listen to any Cd's last evening, but I have a few LP+CD sets which I can use to compare. On this quick assessment, It sounds to my ears that in the Vision phono Frank has with LP approached the sound of CDs through the Insight DAC.
One issue that I do have that honestly has been problematic for me is that, in my area, I have no other good quality "high-end" or 'reference' systems to listen to. My friends are not into audio, thus, for many years the only systems I've heard are my own (not attended RMAF or other shows). It would be an advantage for me to hear some of the recordings I'll talk about, in another system.
That's it for now. I will give this 'new' system some dedicated, critical listening and post more impressions.
THANKS FRANK- for the quick turnaround (1 week including the shipping) and the much needed updates to the rest of the preamp circuitry. Frank also fixed an issue with my balance control; works flawlessly now.
Happy Holidays,

Mark (@home in Rochester, MN).