I've owned the S8e's,and many years ago, Spica TC-50's. I thought the S8e's threw a nice lateral soundstage, particularly when I paired them with a Musical Fidelity KW-500 integrated. They were average in terms of depth. I would expect your Spicas to beat them handily in terms of holographic imaging.
These are very different speakers, however. There is no comparison in terms of the S8e's ability on the bottom end. The midrange is gorgeous. They are much more refined, but ultimately a bit too polite for me. I was much happier with Reynaud Trentes, which embody the best qualities of the S8e's and TC-50's, and now, even more so, my Reynaud Offrandes (although more expensive than the Trentes or S8e's).
These are very different speakers, however. There is no comparison in terms of the S8e's ability on the bottom end. The midrange is gorgeous. They are much more refined, but ultimately a bit too polite for me. I was much happier with Reynaud Trentes, which embody the best qualities of the S8e's and TC-50's, and now, even more so, my Reynaud Offrandes (although more expensive than the Trentes or S8e's).