If you're looking for absolute transparency I'd also recommend the Adcom GFP-750(see Stereophile, www.soundstage!.com, and www.stereotimes.com for reviews), which can be run passive or active. Another solid state unit you might consider is the new McCormack RLD-1 that really does a nice job combining the virtues of both tubes and solid state(see www.soundstage!.com). If you're considering tubes, in addition to those mentioned above there is also Rogue Audio. All excellent units with HT pass throughs that really will come down to personal taste and system interaction. Best of luck.
Tim
Tim