Orpheus Labs H THREE OPUS II Mono Block Amplifiers

The Mono-bloc H Three M800 amplifier from the Heritage Line is part of a new opus that redefines what Orpheus has previously achieved. Featuring a current amplification stage driven by twenty-four manually matched power MOSFETs, it can reach instantaneous current peaks of up to forty-five amperes. To ensure optimal control throughout the amplification chain, each MOSFET is governed by a bipolar technology control stage. This approach, combined with a multi-point feedback topology, allows for the precise amount of feedback required to blend musicality with technical performance seamlessly. Consequently, the H Three M800 can adapt optimally to any type of loudspeaker.

The Class AB architecture is brought to life by a carefully calibrated 480 mA bias current, delivering a thermal idle power of 96 WPC and allowing the amplifier, at rest, to stabilize at 15 °C above ambient temperature.

The polarization circuit ensures optimal biasing regardless of the operating temperature. Furthermore, its low-impedance BJT component architecture maintains constant biasing irrespective of the load type, even at the highest current peaks.

Because musicality comes first and no measuring instrument can rival the human ear in this matter, these technological combinations have been meticulously refined through numerous iterations between laboratory measurements and listening sessions. The result is a purely musical experience, with breathtaking dynamic capability, extremely sharp note attacks, and exceptional openness.