Yes, the Bellari has enough gain for the Virtuoso.
03-25-09: ElevickAbsolutely agree. The Cambridge 640 is quieter and more detailed than the Bellari. However, a Bottlehead Seduction outperforms both. It has one of the most natural sounding midranges I've heard. It's also quiet and sounds more three dimensional than anything else in this price range. They come up used from time to time, or you can buy a new kit for $294.
You will get better detail out of a cambridge 640. There was a creek on here also that should sound better.