| Aguilar Amplifiers: Makers of handmade bass amps. |
| Aiken Amplification: Manufacturer of tube guitar amps and attenuaters. In-depth technical database. |
| Amp Tone: Information about distortion voicing, effects placement, and cranked-tube-amp tone at any volume. |
| Cornford Amplification: UK maker of valve guitar amplifiers. Includes sound samples [requires Flash 5]. |
| Crate Amps: Company background information and product overviews, as well as a dealer list, and a support section containing FAQs, and downloadable manuals. Also features a list of users and the gear they selected. |
| Dave Hall: Custom and standard hand built valve guitar amplifiers manufactured using traditional methods. |
| Demeter Amplification: Products listed by category and includes: pro audio, guitar, bass, and accessories sections with detailed specifications and cabinet descriptions. Company history and contact information are also available as well as an artist list. |
| Dr Z Amplifiers: Professional quality amps with sound clips and reviews. |
| Eden Electronics: Bass amplification products. |
| Electrosonic Amplifiers: Builds custom all-tube guitar amplifiers. Information about products and services to musicians. |
| Euphonic Audio: High end bass cabinets and combo amps. |
| Flat Stone Amplifiers: Manufactures custom, hand-built tube guitar amplifiers. Includes specifications, company history, and contact details. |
| Gallien-Krueger: Bass cabinets, heads, combos, and accessories. |
| Garnet Guitar Amplifiers: Facts, photos, specs and details of Garnet amps, as well as a serial number registry. |
| Gerhart Amplification: Handmade tube guitar amps and kits. |
| Hiwatt Amplification: Model and tech information, catalog, and dealers. |
| Hoffman Amplifiers: Tube amp parts, tube amplifier building supplies, books/videos about tube amps. |
| Hughes and Kettner: Product specifications and detailed descriptions, as well as an image gallery. Also features an artist list, dealer information, and downloadable user manuals. Available in English and Dutch. |
| Juke Amplification: Hand-built vacuum tube amps. Models, specifications, purchase information. |
| Kendrick Amplifiers: Manufacturer of tube amps, guitars, and related accessories. Parts, repairs and restoration of vintage tube amps. Site features a demo room with MP3 clips, a company history section, and ordering information. |
| Kustom: Guitar and bass amplifiers, as well as P.A. systems, stage monitors, microphones, and speakers. |
| L.R. Baggs: Manufacturer of advanced pickups and electronics for guitar and other stringed instruments. Includes product details, manuals, and reviews. |
| Laney: UK manufacturer of guitar and bass amplifiers. [requires Flash] |
| Line 6: Digital guitar amps and equipment. |
| Marshall Amplification: Product images and specifications, information on 'rock kits' as well as free instructional material and desktop themes. Also contains a player feedback section, handbooks for download, and an archive of past products. |
| Marshall Arts: User-maintained site including information on past and current Marshall amplifiers, speaker cabinets and accessories. User-submitted photos of Marshall equipment and FAQs. |
| Matamp Amplifiers: Green Amps: tube and valve amplifiers from the original manufacturer of Orange Guitar and Bass amps. |
| Mesa Boogie: Manufacturers located in Petaluma, California. Features a tour through the construction process, a dealer list, and a new product release section. |
| Metaltronix Amplifiers: Information on Metaltronix amplifiers including manuals, settings, schematics, history, ads, and message board. |
| Naylor Amps: Product features and details pertaining to tone and response. Also contains speakers and padded covers, a distributor list, and contact information. |
| Plexi Palace: Vintage guitar amplifier sales and service. Apple Valley, California. |
| Roccaforte Amps: Custom, hand-built tube guitar amplifiers. EL34 tubes, English transformes, turret board construction. Amp prototypes, repairs and modifications. |
| Rockman: An enthusiast's appreciation of Rockman guitar gear. |
| Rocktron: Manufacturer of amplification and effects technology; includes product details, dealer listing and technical support. |
| Singlecoil.com: A library of do-it-yourself projects to modify stompboxes and effects, amps and guitars; includes a components shop. |
| Soldano Custom Amplification: Information regarding reverbs, heads, preamps, and special effect equipment as well as a list of retails and famous users. Also features a FAQ section and contact information. |
| Tone King Amplifier Company: Manufacturer of vacuum-tube guitar amplifiers. |
| Torres Valve Amplifiers: Custom built tube amps, amplifier kits, and parts. Includes information on building and modding your amp. |
| Totally Humungus Productions: Maker of guitar pedals and preamps, including Scott's Crispy Cream Treble Booster. |
| Trance Audio, Inc.: Amplification systems for acoustic guitar. Product information; downloadable .pdf manuals. |
| Victoria Amp Company: Detailed descriptions of the various models offered as well as the components used. Also contains a dealers list by state and links to parts suppliers and reference material. |
| Z.Vex Effects: Manufacturer of amplifiers and effects pedals; includes product details, manuals, sound samples and ordering instructions. |
Classical
