Audio Research
Audio Research I/50 Integrated Amplifier
Best tube-powered integrated for discerning vinyl and digital music enthusiasts.
Experience the pinnacle of integrated audio with the Audio Research I/50. This amplifier masterfully blends the renowned sonic signature of Audio Research's reference components into a single, elegant unit. It delivers exceptional dynamics, speed, and transparency, bringing your music to life with a natural tonal balance. Designed for both modern digital sources and vinyl enthusiasts, it offers extensive file support and a highly capable phono stage, all housed within a beautifully crafted chassis.
$5800.00
Owner Satisfaction
4.7
/ 5
Category Rank
417
/ 1665
#417 in Power Amplifiers
Price vs Category Average
-30%
Below average
Power Output
50
/ watts per channel
Who it's for
- Audiophiles seeking classic, rich, and holographic tube-driven musicality
- Design-conscious listeners wanting a compact, modern aesthetic for their home
- Minimalists looking to consolidate their system with integrated phono and DAC
Who should skip it
- Users preferring low-maintenance gear without heat or tube replacement costs
- Owners of power-hungry, low-sensitivity speakers in large listening spaces
- Budget-focused buyers seeking entry-level or mid-tier audio equipment
Performance breakdown
Sonic Transparency
Delivers the signature Audio Research clarity with remarkable speed and precision.
Tube Warmth
Provides that classic, lush harmonic richness expected from high-end vacuum tubes.
Phono Stage Fidelity
An audiophile-grade circuit that honors the nuance of analog vinyl playback.
Build Craftsmanship
Artisan-level construction that balances industrial elegance with robust, heavy-duty durability.
Dynamic Range
Effortlessly handles complex musical passages with impressive scale and natural balance.
Connectivity Versatility
Seamlessly bridges modern digital sources with traditional analog listening setups.
Key Specs
Power Output
50 watts per channel
Amplifier Class
Tube
Number of Channels
2
Output Connector Types
Banana Plug
Input Connector Types
RCA
Digital-to-Analog Converter Built-in
True
Remote Control Included
True
Weight
35 lbs
Features
- All-in-one integrated design
- Exceptional sound quality
- High-resolution digital support
- Audiophile-grade phono stage
- Tube-based power section
- Spacious and engaging soundstage
- Artisan chassis design
- High-fidelity headphone output
What customers say
The Audio Research I/50 is widely celebrated for delivering the brand's legendary tube sound in an accessible integrated format. The dominant theme is its sonic signature: reviewers consistently praise the warm, rich, and deeply musical performance, noting its holographic soundstage and exceptional midrange clarity. This amplifier transforms listening into an engaging, emotional experience. Build quality is also highly regarded, featuring robust construction and an elegant design. Integrated features like the MM phono stage and headphone output add significant modern utility. While speaker matching is important, owners find the 50 watts per channel ample for dynamic performance. The I/50 stands out as a benchmark integrated amplifier, offering genuine high end DNA that exceeds expectations for its class.
Know before you buy
With 50 watts per channel, the I/50 performs best with speakers of moderate to high sensitivity. Because it features selectable impedance taps for 4, 8, and 16 ohms, it is highly versatile and can drive a wide range of bookshelf and floorstanding speakers effectively.
Yes, the I/50 features a built-in, audiophile-grade phono stage designed to handle moving magnet cartridges. This allows you to connect your turntable directly to the amplifier without needing an external preamp.
As a tube-based amplifier, the I/50 requires periodic replacement of the vacuum tubes to maintain optimal sound quality. While this is standard for high-end tube gear, the unit is designed for straightforward access to ensure the process is manageable for the user.
Yes, the I/50 includes a high-fidelity headphone output on the front panel. It is engineered to provide the same level of transparency and detail as the main speaker outputs, making it an excellent choice for private listening sessions.
The I/50 is equipped with an integrated digital-to-analog converter that supports high-resolution audio playback. It is designed to bridge the gap between modern digital sources and the classic warmth of a tube-based analog signal path.
The integrated design combines the preamplifier and power amplifier into one chassis, reducing the need for extra cables and minimizing potential signal interference. It offers the signature Audio Research sound in a more compact, simplified footprint that is easier to integrate into a living space.
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