Rega Osiris Integrated Amplifier

The Rega Osiris Integrated Amplifier is the flagship amplifier in the Rega product line, representing the pinnacle of their design and engineering. It is a dual-mono, "minimalist" high-gain amplifier designed to provide the ultimate in sonic performance. The Osiris is housed in a custom-machined CNC aluminum case and built with a singular focus on fidelity and uncolored performance. It is a no-compromise product engineered to deliver music with exceptional authority, control, and realism.

Key Features

• Dual-Mono Design: The amplifier features a dual-mono design, each with its own purpose-designed 400 VA toroidal transformer and 40,000 Micro Farads of Rega K-Power smoothing capacitors.
• High Power Output: Delivers a powerful 162 W per channel into 8Ω and 250 W into 4Ω.
• "Minimalist" High-Gain Amplifier: The design prioritizes a simple signal path, using a high-gain power amplifier and a "passive pre-amplifier" circuit.
• Robust Chassis: The custom CNC machined aluminum case provides a non-resonant and thermally stable environment for the sensitive internal components.
• Versatile Connectivity: Includes four line-level inputs, one balanced input via XLR, and a direct input.
• High-Quality Components: Uses only the highest specification components, including low-noise transistors and a regulated symmetrical tracking power supply for the input and driver stages.

Uncompromising Power and Engineering

The Osiris is built to an exceptionally high standard. The dual-mono design ensures that each channel is completely isolated from the other, eliminating crosstalk and providing a pristine and stable power supply. This design, combined with a total of 80,000 Micro Farads of smoothing capacitance, allows the amplifier to handle even the most demanding loudspeakers with complete control and ease. The massive power reserves and high-gain design give the Osiris its signature ability to deliver music with a sense of effortlessness and dynamic authority that few amplifiers can match.

Meticulous Design and Build Quality

Every aspect of the Osiris has been considered for its impact on performance. The custom CNC machined aluminum chassis not only gives the amplifier a refined and high-end aesthetic but also provides a rigid, low-resonance platform for the circuitry. The high-gain circuit and "passive pre-amplifier" topology mean that there are no active stages in the signal path before the volume control, ensuring an uncolored and transparent sound. The amplifier also comes with a reference-level CNC machined remote handset and a high-quality reference mains power lead.

Your Analog Hub

The Osiris is an all-analogue amplifier designed for the purest possible signal path. It offers a variety of analogue inputs, including a balanced XLR connection for high-end sources. The "direct" input bypasses the volume control, allowing the Osiris to be used as a standalone power amplifier. The amplifier's focus on an uncompromising, high-end analogue performance makes it the perfect centerpiece for a system where a high-quality turntable, DAC, or other analogue sources are used.

The Listening Room Difference

We’re a third-generation family business with a brick-and-mortar showroom in Chestertown, Maryland, and a reputation built on trust, not hype. Whether you’re visiting in person or ordering online, we bring decades of experience, personalized service, and honest guidance to every interaction. We don’t just ship boxes. We help build systems, answer your questions like real humans, and make sure every detail of your setup is right, from the cables to the final connection. Our passion is helping you get the most out of your gear, with support that lasts well beyond the sale.

Specifications