Michael, Fi amps (e.g. Fi Super X 2A3, Fi 45 Fi WE421) have a very high input impedance that matches well with the 10K input impedance and high gain of the Fi preamps (one of the reasons why I was considering Shindo :)
Some of the other ones that get good reviews (some of these I heard already): Bottlehead, Korneff, Welborne, Wright, Yamamoto, Verdier - I am sure we can get a few of these together for a listening session in Toronto sometime in the near future ;)
As others mentioned, a lot will depend on your choice of speakers as well.
Some of the other ones that get good reviews (some of these I heard already): Bottlehead, Korneff, Welborne, Wright, Yamamoto, Verdier - I am sure we can get a few of these together for a listening session in Toronto sometime in the near future ;)
As others mentioned, a lot will depend on your choice of speakers as well.