This article is from the rec.audio.* FAQ, by with numerous contributions by Bob Neidorff others.
It is important to post to the right group. There are a few
reasons for that. First, you want to be read by people who
are knowledgable and/or interested in your topic. Second,
you want to avoid the ire of people who don't have your
perspective or won't tolerate your ignorance. The audio
newsgroups are frequented by a wide group of people, including
some outspoken experts who know their stuff and some serious
purists who won't consider lower levels as acceptable.
That said, here's the list of newsgroups and an explanation
of their content:
rec.audio: The original newsgroup, which is being phased out.
rec.audio.car: This newsgroup supports discussion on different
brands and models of car stereo, and also is an open
forum for talk about car stereo installation, speaker
selection, custom crossovers, and the special noise
problems which occur in cars.
rec.audio.high-end: This newsgroup caters to audiophiles and
serious music lovers who are interested in discussing
the subtle differences between expensive equipment, the
nuances of selecting the best cables, the love and lore
of LPs, and other details of audio that are inaudible to
the untrained ear. Currently, rec.audio.high-end is
the only group which is available by e-mail. To get
this group sent to you, contact:
audio-request@lerc.nasa.gov
This is also the only group which is moderated. This
group has specific, enforced posting guidelines.
There is no cross posting allowed to r.a.h-e. Please
read the frequently posted info on posting before
posting to r.a.h-e.
rec.audio.high-end also has a FAQ. Please obtain and
read the rec.audio.high-end FAQ before posting.
rec.audio.marketplace: Here's the place for selling and buying
equipment. This is also a good place to discuss
dealers, pricing, product sources, and models with
specific features.
rec.audio.misc: If you don't think it fits well in any other
newsgroup, post it here.
rec.audio.opinion: Everyone has opinions. Share yours here.
Not sure which is better? Ask here. Think you hear
a difference? Say it here.
rec.audio.pro: This newsgroup is dedicated to professional
audio. It includes discussion on record production,
studios, studio equipment, DJ equipment, recording
concerts, sound reinforcement, mastering, mixing,
special effects, and other topics which might apply to
audio professionals. If you are a home audio buff but
like tape recording, you can find good advice here.
rec.audio.tech: Discussion here is about audio theory, home
made audio equipment, specifications, and other
technicalities.
rec.audio.tubes: This is a group discussing tube circuits,
tube equipment, and the characteristics of vacuum
tubes in general (UK translation: Valves).
alt.home-theater-misc: Discussions of home theater, including
surround sound processing, speakers, large screen
video, and media.
If the appropriate group is not available on your server,
post to rec.audio.misc.
 
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