Spectral audio today

Hi guys, been a Spectral fan in the early 90s but couldn't afford the gear at the time.I'm wondering how good are the latest Spectral pre-power compared to much more recent top SS brands like Gryphon, CH Precision, Dartzeel, Soulution, Audionet, Boulder, D'agostino, Burmester and so on.Is Spectral still competitive vs modern high end brands ?It is very difficult to audition Spectral gear as they have very little distribution now days.Thanks.