Octave HP 300 SE Tube Preamplifier

The HP 300 SE is Octave’s reference tube preamplifier — built in Karlsbad, Germany to the standard Andreas Hofmann has been applying to his amplifiers for thirty years. The external power supply is not an accessory or an upgrade option. It is part of the design: separating the power circuitry from the sensitive audio stage eliminates the primary source of noise in a preamplifier chassis and raises the noise floor to a level that most tube preamps do not approach. Silver finish. The combination of German build quality, external PSU, and Octave’s circuit refinement makes this a long-term piece — the kind you stop replacing. *Stock Photos Used