The Roksan CASPIAN 4G Streaming Silver marks a new milestone in the realm of integrated stereo hi-fi amplifiers. This model combines high-quality sound performance, diverse features, and refined design, reflecting British expertise in the audio world.
A Revolutionary Sound Architecture
At the heart of the CASPIAN 4G lies the Euphoria amplification architecture, a Roksan innovation that redefines the standards of class AB. This technology uses separate power supplies for current and voltage amplification circuits, reducing unwanted interactions and delivering purer, more detailed, and transparent sound. With a power output of 2x105W at 8 Ω and 2x200W at 4 ohms, the CASPIAN 4G delivers impressive dynamics, capable of driving a wide range of speakers with authority and finesse.
The amplifier also integrates Rapture DAC technology, a proprietary digital-to-analog converter using a differential current conveyor topology. This innovative approach extracts more information from the digital signal, ensuring analog reproduction of remarkable fidelity. The result is a wide, deep, and precise soundstage where every instrument finds its place with striking clarity.
A World of Connectivity at Your Fingertips
The CASPIAN 4G Streaming Silver not only excels in sound reproduction but also offers comprehensive connectivity to meet the needs of modern audiophiles. The integration of the BluOS platform enables high-resolution wireless multiroom streaming up to 24-bit/192 kHz, providing access to a multitude of streaming services like Tidal, Qobuz, or Spotify.
Digital inputs include two coaxial and two optical ports, all compatible with signals up to 24-bit/192 kHz. An HDMI eARC input facilitates connection to a TV for an immersive home theater experience. On the analog side, there are two stereo RCA inputs, a balanced XLR input, and an MM phono input for vinyl enthusiasts. Wireless connectivity is also well-covered with Bluetooth aptX, Wi-Fi, and AirPlay 2, offering total flexibility in source selection.
A Design Combining Aesthetics and Functionality
The CASPIAN 4G boasts an elegant and minimalist design that blends seamlessly into any interior. Its extruded aluminum casing, precisely machined, is not only aesthetically pleasing but also plays a crucial role in heat dissipation and vibration reduction. The side-mounted heat sinks, smoothly integrated into the design, ensure efficient cooling without compromising the unit’s elegance.
The clean front panel is dominated by a large monochrome OLED display with high contrast, providing perfect readability of essential information. The volume knob, a true piece of craftsmanship, uses a hybrid digital-analog control algorithm for optimal precision. The Wi-Fi and Bluetooth antennas are cleverly concealed within the chassis, preserving the purity of the lines while ensuring optimal reception.
An Intuitive and Customizable User Experience
Roksan has focused on ergonomics and customization with the CASPIAN 4G. The MaestroUnite app, available for iOS and Android, offers full control of the device and access to a powerful DSP engine. This engine incorporates four intelligent technologies: Tone, Boundary, Speaker, and Phono, allowing fine-tuning of the sound based on room acoustics, the speakers used, and personal preferences.
The included remote control, a true design object made of extruded aluminum, provides quick access to essential functions. Its carefully crafted ergonomics and perfectly balanced weight make it a pleasure to use daily. For those who prefer more direct control, the front panel buttons allow intuitive navigation between sources and precise volume adjustment.
A British Heritage, Handcrafted Manufacturing
Each CASPIAN 4G is hand-assembled in Roksan’s UK workshops, continuing a tradition of British audio excellence. This artisanal approach ensures impeccable build quality and allows meticulous control of every production stage. The attention to internal wiring, component layout, and sensitive circuit isolation contributes to the device’s exceptional sound quality.
The use of hand-selected components, combined with advanced manufacturing techniques, ensures not only optimal performance but also unparalleled reliability. Each CASPIAN 4G undergoes a series of rigorous tests before leaving the factory, guaranteeing that every unit meets Roksan’s high standards.
What is the difference between the CASPIAN 4G Streaming and the standard integrated model?
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The main difference lies in the integration of the BluOS streaming platform in the Streaming version. This offers advanced multiroom streaming features and extended network connectivity, while the standard integrated model focuses purely on amplification without these built-in streaming options.
Is the CASPIAN 4G compatible with home automation systems?
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Yes, the CASPIAN 4G can integrate into a home automation system thanks to its 12V trigger inputs and compatibility with common control protocols. The MaestroUnite app also offers advanced integration possibilities for centralized management of your audio setup.
Can I use the CASPIAN 4G as a preamplifier only?
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Absolutely. The CASPIAN 4G features XLR and RCA preamplifier outputs, allowing you to use it as a high-quality preamplifier in conjunction with external power amplifiers if you wish to upgrade to a more powerful setup in the future.
How does the CASPIAN 4G handle software updates?
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Roksan designed the CASPIAN 4G to be future-proof. Software updates are performed automatically via the device’s internet connection, ensuring you always benefit from the latest performance and feature enhancements without manual intervention.
User reviews
Samuel
An integrated amplifier of excellent craftsmanship with breathtaking sound, it has everything: balance, neutrality, detail, enveloping sound, dynamics; to my ears it is perfect. I moved from the Atessa to the Caspian, the improvement is enormous, and yet I got a lot of pleasure from the Atessa, but frankly with the Caspian you move up a serious notch, the wow effect and the thrill are there, the only regret is that there is no headphone jack
Comment from April 01, 2026 — Experience from March 21, 2026
Automatically translated — Show original (French)
Ampli intégré d'excellentes factures un son à couper le souffle, il y a tout, équilibre neutralité, détails, enveloppant, dynamique, pour mes oreilles il est parfait. Je suis passé de l'atessa au caspian le gain est énorme et pourtant j'ai pris beaucoup de plaisir avec l'atessa, mais franchement avec le caspian on passe un sacré cap l'effet waouh et le frisson est au rdv, seul regret il n'y a pas de prise casque
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