Aaron: Manufacturer of high-end pre-amplifiers, stereo and three channels amplifiers. Germany.
Advanced Vacuum Tube Audio Concepts: Manufacturers of the Pasiphae transformer attenuator as an alternative to pre-amplifiers.
Aria Audio: Manufacturer of tube/transistor hybrid amplifiers.
Artec France: Manufacturer of high end solid-state amplifiers and pre-amplifiers. France.
Ashdown Music: Manufacturers of Bass Amps and Combos
ATI - Amplifier Technologies Inc.: Manufacturers of preamp/processor, stereo, multi channel and distribution amplifiers utilizing differential drive amplifier technology.
Audio: Makes single-ended power amplifiers consist of triode and pentode type valves, valves pre-amplifiers, kits and components.
Audire: California manufacturer of power amplifier, preamp and the monoblock New Monarch amplifier.
Boulder: Colorado manufacturer of stereo and mono amplifier, DAC and phono preamplifier.
Burman Amplification: Suppliers of hand wired guitar amplifiers. UK.
Burning Blue Audio: Manufacturer of portable USB headphone amplifiers and desktop amps for digital and computer audio. Dedicated to headphone amplification.
Channel Islands Audio: Specialized in mono, stereo, headphone and phono amplifiers, and active and active pre-amplifiers. USA.
Chapter Audio: British manufacturer of one power amplifier and one pre-amplifier.
Chimera Labs: Produces high end audio products such as cables, tube amplifier, and parts. USA.
Coda Technologies: FET line stages and phono preamplifiers and bias class A power and integrated amplifiers such as Unison integrated amplifier.
D2Audio: Makes intelligent digital amplifier modules for the audio industry. USA.
darTZeel: Makes a power amplifier and preamplifier. Switzerland. [English, French]
DeHavilland Electric Amplifier Company: Manufacturer of two class "A" tube amplifiers: the Aries 845-G and the GM70.
Delta Studio Amplifiers: Manufacturer of tube stereo and monoblock amplifiers.
Desperate Audio Magnetics: Manufacturer of vacuum tube audio amplifier transformers, output, input, interstage as well as plate and power chokes and power transformers. USA.
Dussun: Previously known as Korsun, manufacturer of integrated, multi-channel and stereo amplifiers in China.
Dynamic Precision: Makes phono and stereo preamplifiers, power amplifiers and crossovers for home and professionnal. Norway.
Dynavector: Manufacturer of phono, power, and pre-amplifiers. Australia.
Edge Electronics: Power, multi-channels, integrated amplifiers, pre-amplifiers using the proprietary Laser Optical Bias Circuitry technology.
Edward Amplification Co.: Manufacturer of musical instrument amplifiers.
Electronic Visionary Systems: Manufacturer of class D modified UCD amplifier module and power cords. USA.
Embla Audio: Monoblocks and conventional stereo amplifiers.
Evolve Power Amplifiers: Tube and hybrid amplifiers by Shinichi Kamijo.
Halcro Amplifiers: Manufacturers of mono, power, integrated, and pre amplifiers for stereo reproduction and home theater.
IRD Audio: Thailand manufacturer of power, monoblock and integrated amplifiers and pre-amplifiers.
James Audio: Makes and design guitar and music amplifiers. USA.
Jeff Rowland Design Group: High end manufacturer of stereo, monoblock, integrated amplifier and pre-amplifier, phono pre-amplifier power supplies such as Synergy, Cadence and Concentra products line.
Korato: Manufacturers of tube and solid state amplifiers and pre-amplifiers. Based in Belgrade, Serbia.
L C Audio Technology: Manufacturers of power amplifiers that use pulse amplifier module and makes also cables.
Lamm Industries: High end tube and solid state amplifiers and pre-amplifiers such as Monaural power amplifier.
Lamm Industries: Tube and transistor amplifiers and preamplifiers.
Leem Products Co.: Guitar amplifiers and other sound reinforcement products.
LFD: Manufacturer of accessories, amplifiers, cables, power cords, and linestage. UK.
Linar Audio: Quebec amplifier manufacturer for audiophile.
Mactone: Electron tubed amplifiers and pre-emplifiers maker from Japan.
Marchand Electronics Inc.: Manufacturers of equipment such as electronic crossover networks, both solid state and vacuum tube and modular audio amplifiers.
Marsh Sound Design: Manufacturer of home theater processors, multi channels, stereo, power amplifiers and pre-amplifiers with a distinctive design.
Matisse: Makes mono block and stereo amplifiers, pre-amplifiers, phono pre-amplifiers and cables.
McAlister Audio: Specializing in vacuum tube amplifiers. Custom design and build high end audio amplifiers. Repairs and restoration. Canada.
ME Sound: Amplifiers and pre-amplifiers that integrate zero loop feedback and near constant operating temperature technologies.
Metaxas: Manufacturer of audio amplifiers, pre-amplifiers and cables. Scandinavia.
Monolithic Sound: Passive and active pre-amplifier, phono pre-amplifier, dual mono and digital/analog power supply and "perpetual power plant" power supply.
NAT - Nikic Audio Team: Single-ended triode, low- or no-feedback amplifiers and preamplifiers. Hand-wound transformers.
NeoFidelity: Korea manufacturer specializes in digital audio signal processing such as digital power amplification, surround and DSP programming.
NuForce: Design and makes audio mono, powered, multi-channel and integrated amplifiers, preamplifiers and accessories such as power center distributor. USA.
Octave: German manufacturer of integrated, power and monoblock amplifiers such as Jubilee line, pre-amplifiers and outboard power supply upgrade.
One Electron: Manufacturer of audio transformers and amplifiers.
Palette Amps: Hand made guitar amplifier cabinets. USA.
Placette Audio: Preamps from Idaho built around heroically engineered volume controls.
Plinius Audio: New Zealand manufacturer of Odeon amplifier, pre-amplifier, integrated and Jarrah phono amplifier.
Portal Audio: Manufacturer of the Paladin balanced monoblock power amplifier and Panache Integrated amplifier.
Power Modules: Power amplifiers, phono and vacuum tube pre-amplifiers from David Belles.
PrimaLuna: Makes and design hand made vacuum-tube amplifiers and preamplifiers. Netherlands.
Prism Audio: Manufacturers of power amplifier modules, valve amplifiers, class D amplifiers and power supplies. UK.
Reflection Audio Design: Manufacturer of the OM1-Quantum pre-amplifier, amplifiers, AC4 power supply and DC12 battery power supply from Stephen Balliet.
RobyattAudio: Manufacturer of tube amplifiers, preamplifiers and loudspeaker.
Sakuma System: An association for audiophiles and manufacture of hand made vacuum tube amplifiers. Japan.
Sherbourn Technologies: Information and downloadable documentation amplifiers and pre-amplifiers/tuners.
Superphon: Makers of a single ended , class A buffer and preamplifier and amplifiers with no gain or feedback. USA.
Swedish Audio Technology: Makes and design remote controlled integrated amplifier and CD player. Sweden.
Talisman Audio: High-end small manufacturer of one line of product: power and monoblock amplifier, preamplifier and headphone amplifiers.
Thylenea: Design a range of amplifiers and pre-amplifiers. France.
Transcendent Sound: Manufacturer of tube amplifiers, DIY audio kit, audio projects, and preamplifiers. Provides forum and product information.
Vintone Circuits: Designer and builder of custom guitar amplifiers and speakers housed in exotic hardwood cabinets.
Vitus Audio: High End Audio products: Amplifier, phonostages, linestages and powerstages.
Wavelength Audio: Single-ended tube designs and custom guitar amps.
West Laboratories: Designer and manufacturer of guitar and bass amplifiers.
Zenn Audio Components: Amplifier designed and handcrafted in Singapore.