I have 2 separate systems: One with a Spectral DMC-20 MkII and two Krell KSA 300S driving Apogee Divas and a second one where I drive my Virgos also with a Krell combo (Krell KRC preamp and KSA-300S amp.) I use Transparent Audio Reference XL cables throughout. I have tested a lot of alternatives for the Virgos (e.g. KSA-100S, KSA-200S, Adcom 5500, ML335, not the KAV300i though) but never came to a sound that I liked more. With the Krell they sound almost as airy as the Divas and have a wondeful balance and detail. Yes it is subjective, but I can only recommend Krell amplification for the Virgo. By the way, Singer in New York used to drive his 'pet' Virgos also with Krell amps (I don't recall which ones.). Also I saw some KSA 300Ss on Audiogon. So you might consider them for your setup.
