Rega Osiris Integrated amplifier

Name: Rega Osiris Integrated amplifier
Brand: Rega
Price: 18800.00 NZD
Availability: InStock

$18,800.00

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Product variants

The Osiris is the culmination of 32 years experience in solid-state amplifier development. A no compromise, super high performance, 162 W into 8 Ω (250 W, 4 Ω), dual mono amplifier housed in a custom Rega CNC machined aluminium case.

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Specifications

Power Output: 162 W per channel in to 8 Ω
Input Sensitivity: 160 W into 8 Ω, 250 W into 4 Ω
Gain: 44 dB
Record Output: 215 mV into 100 k
Frequency Response: 10 Hz (-1.7 dB point)
THD & Noise: Less than 0.05%
Power Consumption: 560 W at 1125/230 V
Dimensions (W x H x D): 434 x 122 x 350 mm
Weight: 25.6 kg

The Rega Osiris is a classy powerhouse solution

Audio-Fi

Rega’s flagship integrated amplifier

Designed around “minimalist” high gain power amplifier and “passive pre-amplifier” circuit topology, a passive volume control and a single stage of power amplification between the input and the speakers, the Osiris offers unrivalled performance and build quality. The Osiris is designed as the perfect partner for the rest of the reference range, such as the Isis CDP, Valve Isis CDP and Aura MC phono stage.

Technology

The Osiris uses a low distortion high linearity and a bandwidth common base voltage amplifier driver stage. This type of symmetrical circuit topology will provide the necessary voltage swings to enable the Osiris to drive any speaker system with the minimum of distortion.

Power supply

The Osiris uses two low noise, purpose designed 400 VA toroidal transformers using high-grade, fully bonded core material. The transformers are mounted to the chassis using Rega’s innovative mounting technique which eliminates noise being transferred from the transformer to the case when the transformers are operating under arduous mains (line) conditions.

All the dedicated audio power supplies feed only the audio circuits. The input switching, display & micro controller and protection circuits have their own dedicated supplies, keeping the audio signal path as pure as possible.

Key features

162 W per channel into 8 Ω
4 line inputs
1 balanced input via XLR
Reference CNC remote handset
Direct input
Record out
Reference mains power lead
Lifetime warranty against manufacture defects

Who is this for?

The Rega Osiris is built for uncompromising reference-level systems. With 162 watts per channel into 8 ohms and an enormous custom power supply architecture, it is designed to control demanding loudspeakers with complete authority while preserving extraordinary finesse and musical transparency.

The Osiris suits experienced audiophiles building long-term “endgame” systems where every upstream component is already operating at an extremely high level. It excels in large listening rooms and with revealing speakers that demand current delivery, stability, and fine low-level resolution.

Rather than sounding overtly analytical, the Osiris combines scale and power with remarkable fluidity and realism. It’s an amplifier designed not simply to impress technically, but to make music feel physically present and emotionally convincing.

What is the Rega Osiris Integrated Amplifier designed to do?

The Rega Osiris is Rega’s flagship reference-level integrated amplifier, designed to deliver extremely high power, control, and transparency from a single chassis. It is built for no-compromise high-end systems where ultimate musical performance and drive capability are required.

What makes the Rega Osiris different from other integrated amplifiers?

The Osiris uses a dual-mono, high-current design with a minimalist signal path and a passive preamplifier stage. This means the signal passes through fewer amplification stages, helping preserve detail, dynamics, and timing accuracy.

How powerful is the Rega Osiris?

It delivers 162W per channel into 8Ω and up to 250W into 4Ω, giving it enough current and control to drive demanding loudspeakers with authority.

What type of sound does the Rega Osiris produce?

The Osiris is known for a highly controlled, transparent, and dynamic sound signature, with strong bass grip, excellent imaging, and a natural sense of musical flow. It is designed to sound effortless even at high listening levels.

Can the Rega Osiris drive difficult speakers?

Yes. It is specifically engineered with a high-current triple output stage and robust power supply design, allowing it to handle difficult speaker loads and maintain stability and control.

What inputs does the Rega Osiris include?

It provides multiple line-level inputs including balanced XLR and single-ended RCA connections, making it suitable for both traditional and high-end balanced systems.

Does the Rega Osiris include a DAC or phono stage?

No. The Osiris is a pure analogue integrated amplifier with no built-in DAC or phono stage. It is designed to be paired with separate high-quality source components such as Rega Isis CD players or Aura phono stages.

What type of system is the Rega Osiris designed for?

It is intended for reference-level stereo systems, typically paired with high-end sources (CD, DAC, or vinyl front ends) and revealing loudspeakers where its resolution and control can be fully appreciated.

How does the Osiris compare to separates?

While separates (preamp + power amp) can offer flexibility, the Osiris is designed to achieve similar performance in a single, tightly integrated chassis, reducing complexity while maintaining very high sonic performance.

What makes the power supply in the Osiris special?

It uses dual 400VA toroidal transformers and extensive power filtering, with separate supplies for audio and control circuits to reduce interference and improve signal purity.

What type of speakers pair well with the Osiris?

It works best with high-resolution, revealing loudspeakers that benefit from strong control and current delivery—especially larger floorstanders or demanding designs.