I have been a supporter of Aragon amplifiers for years. Currently, I am running an 8008ST, and 8008X3 in my home theater. The only issue I have ever had was that occassionally 'the bias' has to be adjusted to keep them from running too hot. In the past (before Klipsch), I would simply call Aragon, and talk with Paul R. up there, who would get me taken care of. Two separate questions: 1) The last time I spoke with Aragon, they said that it was relatively easy to adjust bias at home (avoiding the downtime, and the shipping charges). Does anyone here know how to do that? 2) While my currect amps are running fine, I was tempted by a recent advertisement to take a look at the 2005. The price seemed right... and it would free up a spot in my rack. However, I was surprised that the 2005 only weighs 46#, while the combination of my 8008 and 8008X3 weigh nearly 140#!!! I 'assume' that the newer amp uses newer technologies and that it what cuts the weight. Am I missing something here? Is the 2005 a lightweight compared to my current combination? As always, I appreciate your insight.