Roksan Caspian Series 4G streaming pre-amplifier and power amplifier
Roksan is proud to announce the launch of two new additions to the award-winning Caspian Series 4G: the Caspian Streaming Pre-Amplifier and Caspian Power Amplifier. These components embody pure high-fidelity performance, engineered to deliver breathtaking musicality with effortless power and control.
Together, these new models offer users the flexibility to build a system tailored to their needs, from a single stereo solution to a full mono-block configuration. With this launch, Caspian Series 4G now comprises four cornerstone components: Streaming Amplifier, Integrated Amplifier, Streaming Pre-Amplifier and Power Amplifier.
Born of Monitor Audio Group’s Transparent Design Philosophy, the Caspian Series 4G balances cutting-edge technology with timeless design. Each product is hand-built at Monitor Audio Group’s Headquarters in Essex, UK.
Caspian streaming pre-Amplifier
The Caspian Streaming Pre-Amplifier is the control hub of any Caspian system. It features BluOS streaming capability, Roon Ready integration, and a fully balanced analogue pre-amplifier section. With internal custom-built antennas for Bluetooth and Wi-Fi, it ensures seamless connectivity while maintaining a sleek, elegant profile.
Its novel ground switching input design minimises cross-talk between connected devices, while the use of multiple dedicated power supplies ensures the cleanest delivery of current with minimal noise. The result is pristine signal transfer and total flexibility between connected devices.
Caspian power amplifier
The Caspian Power Amplifier is engineered to deliver uncompromising drive and power, whether used in stereo or mono-block configuration. It harnesses Roksan’s advanced Euphoria amplification architecture and precision-engineered analogue circuitry to ensure a transparent signal path that preserves every detail and dynamic nuance of the music.
Roksan’s engineers have carefully scrutinised both voltage and current amplification stages. The result is exceptional soft-clip behaviour, tuned through extensive listening sessions to extract maximum SPL before perceptual degradation occurs.
Rapture DAC
Caspian Series 4G utilises Roksan’s powerful Rapture DAC technology; a differential current-conveyor topology, which allows more information to be extracted for the best possible analogue reproduction. This topology has several measurable advantages over the traditional approach to digital to analogue reconstruction using op-amp ICs. The current-conveyor has superior gain-bandwidth characteristics essential for faithful high-resolution audio reproduction. Moreover, despite being discrete (no off-the-shelf solution exists) it relies on a single circuit element for gain matching. Therefore, it can be utilised effectively in a discrete-component level solution.
*Euphoria amplification
Caspian Series 4G uses Roksan’s authoritative and intelligent class AB amplifier architecture, Euphoria, which excels in power and finesse. Roksan has evolved the AB topology, with individual power supplies for the current and voltage amplifiers, this reduced interaction delivers purer, more detailed and cleaner sound. Rated at 100W into four ohms and 200W into eight the amp can be bridged to mono for 420W/8 and 600W/4 ohms.
Ultra-high-res volume control
Caspian Series 4G’s innovative volume control encapsulates the best of both the digital and analogue worlds. A hybrid digital-analogue volume control algorithm leverages powerful digital signal processing to facilitate tone controls and system matching.
Accessed via the MaestroUnite app, Caspian Series 4G’s intelligent DSP engine optimises a user’s listening experience through the application of four key technologies: Intelligent Tone, Intelligent Boundary, Intelligent Speaker and Intelligent Phono. In combination, these technologies allow users to fine-tune their listening experience to their environment for the best possible results.
Caspian Series 4G’s new mono Colour high-contrast OLED display frames the intuitive single point of control user interface more clearly and larger than ever before. Customisable input icons allow easy source selection, while a new progress indicator displays features such as track length.
Internal, fully custom-built antennas feature reflectors to protect sensitive circuits from interference. This ensures Caspian Series 4G Streaming Pre-Amplifier looks smart, while also providing the best possible Wi-Fi connection with a user’s router.
BluOS remains Roksan’s streaming partner of choice for the Caspian Streaming Amplifier, and for good reason. BluOS provides users with access to limitless music via the world’s most popular streaming services, and the ability to wirelessly stream music at lightning-fast speeds with zero loss in sound quality. Users can stream up to 64 zones of high-resolution audio, up to 24-bit, 192kHz. Using BluOS also means effortless browsing, and access to locally stored music collections as well as streaming services.
MaestroUnite app
Caspian Series 4G makes use of Monitor Audio Group’s in-house designed MaestroUnite app. The intuitive-to-use app provides simple set-up options, as well as providing access to advanced features such as input configuration, headphone sensitivity, analogue input gain, balance, low power standby, and the Roksan DSP Engine’s enhanced features for tailoring a system to a specific environment.
Design & Build
Caspian Series 4G builds on the foundations laid by the Roksan Attessa electronics, yet dramatically extends the performance, intuitive user-experience, and physical design presence. The aesthetic identity remains sleek, clean and modern, while clever design elements such as the custom extruded heatsinks, internal antennas and chamfered machined edging are pure Roksan.
Roksan Caspian Series 4th Generation is a product of Monitor Audio Group’s Transparent Design Philosophy, an R&D philosophy of maintaining a balance between Design and Technology. One is never allowed to overpower the other and both play a vital role in delivering on the promise of musical neutrality and acoustic transparency coupled with an intuitive user experience.
Key features
Two new models: Caspian Streaming Pre-Amplifier and Caspian Power Amplifier
Hand-built at Monitor Audio Group HQ, Rayleigh, Essex, United Kingdom
Rapture DAC Architecture with dual-mono topology and LVDS signal transfer
Euphoria Amplification delivers powerful, clean and detailed sound
Fully balanced analogue pre-amplifier with novel ground switching design
BluOS enabled, premium streaming up to 24-bit/192kHz
Roon Ready for seamless music server integration
MaestroUnite app for complete control and system tailoring
Intelligent DSP Engine with four key technologies
Internal antennas for optimal wireless connectivity
High-resolution OLED display with intuitive interface
Dedicated MM and MC phono stage with calibrated RIAA equalisation
Pricing
Caspian Streaming Pre-Amplifier: £3,500.00 | $4,500.00 | €4,000.00 per piece
Caspian Power Amplifier: £3,000.00 | $3,750.00 | €3,500.00 per piece
Caspian Streaming Pre & Power Amplifier System: £6,500.00 | $8,250.00 | €7,500.00 system



