A single-stage discrete gain circuit voiced around the BC109B low-noise silicon transistor.

Shaped for clarity and controlled edge.

Voiced by ear.
Released in limited numbers.
Built once.

Designed to enhance an amplifier without excess — adding presence, definition, and harmonic lift with restraint, while retaining a tight, articulate response.

Each unit is hand-assembled and individually calibrated in Salzburg.

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ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
Brand
Model
  • Boost
Finish
  • Matte Black
Categories
Year
  • 1970s
Made In
  • Austria

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Doheny Audio

Anif, Austria
Joined Reverb:2025

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