Trelja,
Sorry to have to disagree. The Sixpacs are very comparable to the V12R. I have heard both back-to back at the Cary factory. The Sixpacs and V12R share the same circuit and parts (per Kirk O. at Cary). Dennis H. indicated, in his interview on Positive-Feedback, the sixpacs sounded better than the V12i and it was "embarrasing." Therefore, he had to upgrade the V12i to the "R" specification by adopting the 12BZ7 input tube (like the pacs). Both amps make great music, that's for sure.
Sorry to have to disagree. The Sixpacs are very comparable to the V12R. I have heard both back-to back at the Cary factory. The Sixpacs and V12R share the same circuit and parts (per Kirk O. at Cary). Dennis H. indicated, in his interview on Positive-Feedback, the sixpacs sounded better than the V12i and it was "embarrasing." Therefore, he had to upgrade the V12i to the "R" specification by adopting the 12BZ7 input tube (like the pacs). Both amps make great music, that's for sure.