Other High End Audio Forums

A vote for Audio Asylum.  A great YouTube channel is The Absolute Sound with good comments usually.  

Just don’t dare judge/criticize any Audio Note products or disagree with Steve on the Hoffman forum. The rules there don’t apply to the “host.” 

http://diyaudio.com   has many tech savvy guys on all things audio, where you can learn some things.

http://audiophilestyle.com is also a forum where more of the digital audio nitty gritty enthusiasts hang out.

Audio Asylum is primarily a political site that basically only supports one point of view.