The Nagra CLASSIC INT stands as a testament to Nagra’s commitment to audio perfection. Building upon the acclaimed CLASSIC AMP, this high-end integrated amplifier merges a robust power stage with an innovative preamplifier design, offering audiophiles a cohesive and uncompromised listening experience.
True to Nagra’s heritage, the CLASSIC INT showcases meticulous craftsmanship. Its compact chassis, measuring 277 x 395 x 174 mm and weighing 18 kg, is constructed from high-grade aluminium, providing both durability and aesthetic appeal. The front panel features Nagra’s signature modulometer, offering real-time output monitoring, alongside an intuitive LCD screen for input labelling and system settings. This user-centric interface ensures seamless integration into any high-fidelity setup.
Performance and Technical Specifications
Operating in Class AB, the CLASSIC INT delivers 100W RMS per channel into 8Ω, ensuring ample power to drive a diverse array of loudspeakers. Its frequency response spans from below 10 Hz to 80 kHz (+0 / -3 dB), capturing the full spectrum of audio with precision. With a signal-to-noise ratio of approximately 110 dB (ASA A-weighted) and total harmonic distortion below 0.05% at full output, listeners are guaranteed a clean and immersive soundstage.
Connectivity and Versatility
The amplifier is equipped with a balanced XLR input and four unbalanced RCA inputs, accommodating various source components. Each input’s sensitivity is adjustable, allowing for optimal matching with source output levels, including professional-grade signals. Output options feature high-quality Cardas rhodium-plated terminals, ensuring secure and high-fidelity connections to loudspeakers.
User Interface and Features
Navigating the CLASSIC INT is intuitive, thanks to its clear LCD display and responsive controls. Users can customise input names, adjust settings, and monitor operating time effortlessly. The included remote control enhances convenience, allowing adjustments from a distance. Safety features, such as indicators for clipping and temperature, alongside automatic protection mechanisms, ensure both the amplifier’s longevity and the preservation of connected components.
Conclusion
The Nagra CLASSIC INT is more than a high-end integrated amplifier — it’s a refined solution for those seeking outstanding performance and compact elegance. As a Swiss integrated amplifier built with the same DNA as Nagra’s revered separates, it offers the rare blend of musicality and control. For those in search of a Nagra integrated amp that reflects the brand’s engineering ethos, the CLASSIC INT delivers a listening experience that is both precise and emotionally engaging.
Additional information
Weight
18 kg
Dimensions
43 × 30.7 × 16.5 cm
Finish
Silver
Class
AB
Power
100 W rms into 8Ω
Sensitivity
XLR input: Normal 2V; PRO 10V
RCA1 input: Normal 2V; High 3V
RCA 2 to 4 inputs: 2V
Bandwidth
<10 Hz to 80 KHz, +0 / -3 dB
Crosstalk
>70 dB
Signal to Noise Ratio
Typically 110 dB measured in ASA A
THD+N
<0.05% at 100 W
Input Impedance
>100 KΩ
Output Impedance
60 mΩ
Monitoring
Stereo level meter
Red LED on the modulometer: clipping indication, temperature, saturation
Display: Saturation
Protection (deactivates amplifier)
Overheating: above 60°C (140°F)
DC protection for loudspeakers: above +/- 2.5 V DC
Power Consumption
400 W max (sine wave current draw complies with EN61000-3-2 regulation)
< 1 W in standby and auto
Operating Range
90-110 V, 110-132 V, 180-264 V: 50-60 Hz
Inputs
XLR (balanced)
RCA 1 to 4 (unbalanced)
Jack 3.5 mm (external remote IN and OUT)
Outputs
Cardas CPBP (rhodium terminals)
Banana plugs
Additional Dimensions
350mm (400mm from nose of the modulometer to back of the connectors) x 277mm x 165mm (15.7 x 10.9 x 6.5 inches) – Add 3cm or 1.2 inches with a VFS plate placed under
Nagra Audio
Nagra Audio, a Swiss-based manufacturer, is renowned for producing some of the most finely crafted high-end audio components in the world. With over 70 years of experience, Nagra has made its mark in both the professional recording industry and the high-fidelity consumer audio market, offering a range of products that are synonymous with precision, musicality, and craftsmanship.
Their HD Series, which includes the HD DAC X, HD AMP, and HD PHONO, represents the pinnacle of Nagra’s technological innovation. The HD DAC X is celebrated for its ability to handle high-resolution digital formats like PCM and DSD256, producing a remarkably analog-like sound that is both smooth and detailed. The HD PHONO preamplifier, with its dual-mono Class A tube design and advanced custom transformers, has become a benchmark for vinyl enthusiasts, offering warmth, detail, and clarity in analog playback. Both products benefit from Nagra’s meticulous approach to reducing noise and interference, with separate, supercapacitor-based power supplies ensuring clean and precise signals.
Complementing this high-end analog setup is the Nagra Reference Turntable, one of the most advanced turntables available today. The Nagra Reference Turntable features a dual-motor belt-drive system, a finely tuned suspension system, and a precision-engineered platter, all designed to ensure stable, vibration-free playback. Paired with the Nagra HD PHONO and the Nagra Reference MC Cartridge, this system is capable of extracting every nuance from vinyl records, making it a top choice for audiophiles who value the ultimate in analog sound reproduction.
For audiophiles seeking cutting-edge performance in a more accessible format, the Classic Series offers products like the Classic DAC II and Classic AMP, which maintain Nagra’s signature transparent and dynamic sound but in a more compact and approachable package.
Recently, Nagra has expanded into the digital realm with the Nagra Streamer, designed to integrate seamlessly with their DACs and amplifiers. This allows users to stream from services like Tidal, Spotify, and Qobuz, without compromising the legendary Nagra sound quality.
Nagra’s extensive lineup, from the Reference Turntable and analog components to cutting-edge digital solutions, maintains its status as a top-tier brand in the world of high-end audio, delivering Swiss precision, impeccable sound quality, and innovative design.
Reviews
Steve Huff Hi-Fi – Nagra Classic System Review (February, 2022)
“They have a beauty about them in the flesh. They harken back to a bygone era in the way they used to make things. Dials, knobs, lights, metal, amazing looks and meters. Quality through and through. You may have heard the term “They don’t make ’em like they used to”. Well, at Nagra, they do.”
“On premium luxurious feel and assembly it’s a masterpiece by my standards, and along with experiencing it at home comes the understanding where all the money went. Of course that nasty preconception about bigger amps sounding better has to be cast aside first.”
