The lack of response is likely due to not many having heard the Legacy line given its shorter run (in Legacy guise) than the Prestige line.
I own the Legacy Arden if you have any questions I can help with, but I have not heard any of the Prestige line. I've only read one "release" review (hifi pig?) Where a comparison between lines was mentioned.
Tannoy purists will scoff at anything lacking a pepper pot, but I don't subscribe to that newsletter.
If you're in the market for new, and have time to shop, the new Fyne Vintage/Classic lineup looks pretty interesting and cut from the same Tannoy mold...and price point.
I also owned a silver 04 WRX wagon, and wish Subaru would get their sh!t together with that car. The latest plastic clad blob is an abomination.