Resource
AudioCircle
Audio discussion community with regional audiophile groups, equipment discussion and member-system sharing.
Verification sources
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diyAudio
diy
DIY audio community with forums for amplifiers, sources, loudspeakers, design and build projects, and a marketplace.
Sources
Audiokarma
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Home-audio discussion forums with sections for members' systems, general audio, solid-state equipment, and tube audio.
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Analogue Seduction
dealer
Whittlesey, UK dealer focused on two-channel and home-cinema equipment, including amplifiers, cartridges, DACs, streamers, speakers, turntables, and vinyl.
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ATC
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ATC produces hi-fi loudspeakers and electronics alongside active professional studio-monitoring systems.
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Audio Classics
dealer
Vestal, New York dealer listing new and used stereo equipment, buy/trade services, modifications, and equipment service.
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AVM Audio
manufacturer
German audio manufacturer offering amplifiers, streaming systems, phono preamplifiers, and loudspeakers.