Nonoise,
Yes audiocircle does have manufacturer forums, but mostly they are for true fans of the products THAT manufacturer makes. If one posts any negative experiences they can/are banned from the forum by the moderator who is the rep or owner of said manufacturer. How do I know? Because I was one owner who was banned for being truthful about my experiences with three products. Therefore they are not really forums, in the sense of shared opinions, both negative and positive in nature. They stand as more advertising than forums...