Octave Audio

About this resource

Octave Audio is a German amplifier specialist based in Karlsbad. Its history begins with the Hofmann transformer-winding business in 1968 and Andreas Hofmann’s amplifier development in the 1970s, with Octave Audio taking over the family operation in 2000. The company states that its devices are individually manufactured and checked in Germany and that it maintains its own transformer-winding capability. ^{[1] [2]}

Its approach combines tubes in audio circuitry with semiconductor electronics where needed for control and supporting functions. Power management sequences heating and operating voltages and monitors safety conditions before releasing the signal path. Published features include electronic protection, a soft-start function and an externally accessible measuring system for checking and adjusting output-tube bias, addressing practical ownership as well as circuit design. ^[1]

The live catalogue separates integrated, power, preamplifier and phono designs, with a Jubilee line and additional devices. V-series integrated amplifiers, HP preamplifiers and MRE mono amplifiers are useful family-level entry points. Black Box and Super Black Box units expand compatible amplifiers’ power-supply storage, while model-specific power-selector settings accommodate different output tubes. Manuals and tube-handling guidance clarify which options apply to a particular amplifier. ^{[3] [1]}