Gopher,
I am not an admirer of Shindo gear. So it comes as no surprise that I think there are many better preamp alternatives to Shindo. However, I will say that the Shindo preamps are stronger contenders for one's attention than the power amps, overall. There are very few truly worthwhile preamps in the $2k - $3k range, regardless who makes them but there are always exceptions to the prevailing mediocrity.
One that will satisfy your bias to "texture, harmonic density and micro/macro-dynamics" not far from your stated price range is the excellent Valvet L2. This is a 6sn7-based preamp, and the US importer can offer it with a variety of 6sn7 vintages, for a real range of choices in dialing in your sound.
The Valvet will give you excellent resolution, and a soundstage that scales appropriately, but it is fundamentally a conduit for musical emotion rather than being analytic. At $3600 new, and with its power supply recently upgraded, it's sonically valuable well beyond its price-peers. The more expensive still Valvet Soulshine, which is not 6sn7 based, can give you a bit more refinement at the expense of some of the 6sn7's vividness. If you go this route, you'll be keeping your Jasmine as the L2 is a line stage.
If you want a better preamp than any Shindo at Shindo prices, get an Audion.
I am not an admirer of Shindo gear. So it comes as no surprise that I think there are many better preamp alternatives to Shindo. However, I will say that the Shindo preamps are stronger contenders for one's attention than the power amps, overall. There are very few truly worthwhile preamps in the $2k - $3k range, regardless who makes them but there are always exceptions to the prevailing mediocrity.
One that will satisfy your bias to "texture, harmonic density and micro/macro-dynamics" not far from your stated price range is the excellent Valvet L2. This is a 6sn7-based preamp, and the US importer can offer it with a variety of 6sn7 vintages, for a real range of choices in dialing in your sound.
The Valvet will give you excellent resolution, and a soundstage that scales appropriately, but it is fundamentally a conduit for musical emotion rather than being analytic. At $3600 new, and with its power supply recently upgraded, it's sonically valuable well beyond its price-peers. The more expensive still Valvet Soulshine, which is not 6sn7 based, can give you a bit more refinement at the expense of some of the 6sn7's vividness. If you go this route, you'll be keeping your Jasmine as the L2 is a line stage.
If you want a better preamp than any Shindo at Shindo prices, get an Audion.