Classic, yes. Forums like XDA-Developers, EEVBlog, Head-Fi, or DIYAudio.com. You can pretty much just search for "<topic> forum" and find them. Many of the best

Classic, yes. Forums like XDA-Developers, EEVBlog, Head-Fi, or DIYAudio.com. You can pretty much just search for "<topic> forum" and find them. Many of the best forums in the modern Internet are Russian and Chinese by the way.