Octave Jubilee Class A monoblock power amplifier
A first for German manufacturer Octave is the Jubilee Class A mono ($85,000/pair), a push-pull class-A monoblock with a self-regulating autobias pentode circuit that can also run in "high power" class-AB mode. The Jubilee Class A monoblock uses KT120, KT150, or KT170 output tubes.