Rega Osiris Solid-State Amplifier
Best flagship integrated amplifier for audiophiles seeking uncompromising sonic purity.
The Rega Osiris is a flagship integrated amplifier, representing the pinnacle of 32 years of solid-state amplifier development. It delivers a no-compromise, super high-performance audio experience with 162 W into 8 Ω (250 W into 4 Ω) from its dual mono design. Housed in a custom Rega CNC machined aluminum case, it features a minimalist high-gain power amplifier and passive pre-amplifier circuit topology for unrivalled performance and build quality. Designed as the perfect partner for Rega's reference range components, it ensures sonic purity and exceptional control. The Rega Osiris is the flagship integrated amplifier, representing the pinnacle of 32 years of solid-state amplifier development. This no-compromise, high-performance dual-mono amplifier delivers 162 Watts into 8 Ohms and 250 Watts into 4 Ohms, housed in a custom Rega CNC-machined aluminum case. It features a minimalist high-gain power amplifier and passive pre-amplifier circuit topology, with a passive volume control and a single stage of power amplification. The Osiris is designed to drive any speaker system with minimal distortion, offering unrivaled performance and build quality, making it a perfect partner for high-fidelity audio systems. It delivers a no-compromise, super high-performance audio experience with 162 W into 8 Ω (250 W into 4 Ω) from its dual mono design. Designed as the perfect partner for Rega's reference range components, it ensures sonic purity and exceptional control.
$11295.00
Owner Satisfaction
4.7
/ 5
Category Rank
421
/ 1719
#421 in Power Amplifiers
Price vs Category Average
+37%
Above average
Power Output
1628
/ W per channel into Ω
Who it's for
- Audiophiles seeking an emotionally engaging and natural listening experience
- Listeners prioritizing long-term reliability and premium industrial design
- Owners of power-hungry speakers needing effortless dynamic control
Who should skip it
- Budget-conscious buyers looking for high-end performance at lower costs
- Users relying heavily on modern digital streaming and connectivity
- Homeowners with limited shelf space or restricted equipment racks
Performance breakdown
Power Delivery
Massive current reserves effortlessly drive even the most demanding speaker loads.
Signal Purity
Minimalist circuit topology ensures an exceptionally clean and transparent audio path.
Build Integrity
Custom CNC-machined aluminum housing provides superior durability and thermal management.
Channel Separation
Dual mono design delivers precise imaging and a wide, immersive soundstage.
Control Precision
Passive volume control offers refined, accurate adjustments for critical listening sessions.
Component Quality
High-grade Sanken transistors and Nichicon capacitors ensure long-term sonic reliability.
Key Specs
Power Output
162 W per channel into 8 Ω
Dimensions (W x H x D)
434 x 122 x 350 mm
Frequency Response
10 Hz (-1.7 dB point)
THD & Noise
Less than 0.05%
Gain
44 dB
Record Output
215 mV into 100 k
Amplifier Class
Class A (implied by low distortion and heat)
Output Transistors
Eight Sanken 200 W
Features
- Dual mono amplifier design for superior channel separation.
- Custom Rega CNC machined aluminum case for enhanced build quality and heat dissipation.
- Minimalist high-gain power amplifier and passive pre-amplifier topology.
- Passive volume control for signal purity.
- Single stage of power amplification for direct signal path.
- Massive power reserves to drive difficult speaker loads.
- Innovative transformer mounting to eliminate noise transfer.
- Lifetime warranty against manufacturing defects.
- Dual mono amplifier design for superior channel separation
- Custom Rega CNC machined aluminum case for enhanced durability and aesthetics
- Minimalist circuit topology for signal purity
- Passive volume control for precise level adjustment
- High-gain power amplifier stage for robust performance
- Eight Sanken 200 Watt output transistors for high current drive capability
- Nichicon audio grade capacitors for improved sound quality
- Custom aluminum remote control for convenient operation
- Massive power reserves to drive difficult speaker loads
- Innovative transformer mounting to eliminate noise transfer
What customers say
Customers consistently praise the Rega Osiris Solid State Amplifier for its exceptional build quality and sophisticated sound performance. Owners frequently highlight its powerful yet refined audio delivery, noting a remarkable clarity and musicality that elevates their listening experience. The amplifier's robust construction and elegant design also receive high marks, reinforcing its premium feel. While a significant investment, many users feel its sonic capabilities and enduring craftsmanship provide substantial long term satisfaction.
Know before you buy
The dual mono design means each channel has its own independent power supply and circuitry. This configuration virtually eliminates crosstalk between the left and right channels, resulting in a wider, more precise soundstage and improved stereo imaging.
Yes. With 162 watts into 8 ohms and 250 watts into 4 ohms, supported by eight high-current Sanken output transistors, the Osiris is engineered to handle demanding speaker loads with ease and stability.
By using a passive volume control and a minimalist circuit path, the Osiris minimizes the number of components the audio signal must pass through. This direct approach reduces potential coloration and distortion, ensuring the output remains as faithful to the source as possible.
Yes. The Osiris is a high-performance amplifier that generates heat during operation. It should be placed on a stable, open surface with adequate clearance above and around the unit to allow for proper heat dissipation from its custom aluminum chassis.
The transformer is mounted in a way that physically isolates it from the sensitive audio circuitry. This design choice prevents mechanical vibrations and electromagnetic noise from transferring into the signal path, which helps maintain a very low noise floor.
The Osiris comes with a custom-machined aluminum remote control. It is designed to provide convenient, tactile control over the amplifier's volume and input selection.
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