| Audio Nirvana | | Devoted to high fidelity with special attention to vintage equipment and tube equipment. Topics include news, reviews, tweaks, gallery, articles, auditions, links. English and Spanish options. |
| Audiophile 2000 | | HiFi and music guide including equipment and music reviews, and related links. |
| Audiotools.com | | Collects information on past and present models of Hi-Fi and recording equipment along with links to, history and contact information for companies and individuals active in the field. |
| BlueFi | | Includes news and reviews. Plus a forum, polls and user feedback. |
| Ensoniq - an MSN Group | | Offers a hub for exchanging information and swapping patches. Includes registration details. |
| HighFidelity.tk | | Offers news and reviews, classifieds, and discussion forum. |
| Kenwood L-07D Direct Drive Turntable | | Unofficial site that focuses on this quartz PLL direct drive turntable developed in the 1970's. Learn more about technical specifications, history, photo gallery, parts and supplies. |
| Naks.com | | A thorough unofficial resource for Nakamichi tape decks. |
| Roger Russell and McIntosh | | Roger was former Director of Acoustic Research for McIntosh Labs. Offers information and photos of McIntosh equipment. |
| Scruff & Audio Research | | Tribute to Audio Research Corporation (ARC) SP tube preamplifiers. Photos and description of SP-2, SP-3, SP-6, SP-8 preamps. Information about tubes, line conditioners and related topics. |
| The Analog Dept. | | System gallery, online user manuals and maintenance information on Thorens turntables. |
| The Classic Speaker | | Support for acoustic research, repair and upgrade information, discussion forum, and links. |
| The Quad ESL | | Reference source on this classic electrostatic loudspeaker. |
| ZeroGain | | Offers several discussion forums, articles, news and photos. Includes registration details. |
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