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.
Affordable Valve Company
British maker and seller of Class A EL34 valve amplifiers.
Argiriadis Analogue Electronics
UK custom desiged and handbuilt valve amplifiers including repair and restoration services.
Aria Audio
Manufacturer of tube/transistor hybrid amplifiers.
Art Audio
Tube pre and power amplifiers. Stereo and mono blocks.
Artec France
Manufacturer of high end solid-state amplifiers and pre-amplifiers. France.
Ashdown Music
Manufacturers of Bass Amps and Combos
ASV Tube Audio
Slovenian manufacturer and supplier of tube amps, kits and components.
ATI - Amplifier Technologies Inc.
Manufacturers of preamp/processor, stereo, multi channel and distribution amplifiers utilizing differential drive amplifier technology.
Audible Illusions
Manufacturers of tube equipment including the Modulus 3A Pre-Amp.
Audio
Makes single-ended power amplifiers consist of triode and pentode type valves, valves pre-amplifiers, kits and components.
Audio Valve
Manufacturer of high end tube and valve amplifer. Germany.
Audire
California manufacturer of power amplifier, preamp and the monoblock New Monarch amplifier.
Beam-Echo
British tube amps with retro styling.
Beard Audio
Reviews, brochures and information about tube amplifiers and pre-amplifiers.
Border Patrol
Manufacturer of valves amplifiers with a wooden finish and power supplies.
Boulder
Colorado manufacturer of stereo and mono amplifier, DAC and phono preamplifier.
Burning Blue Audio
Manufacturer of portable USB headphone amplifiers and desktop amps for digital and computer audio. Dedicated to headphone amplification.
BWS Tube
Manufacturer from Virginia of hand crafted, broadcast grade and stereo tube equipment.
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