Roksan Caspian 4G Streaming Amplifier

The Caspian Streaming Amplifier is designed with the modern user firmly in mind. Streaming capability is via the acclaimed BluOS platform for high-resolution multi-room convenience. Whilst the smart implementation of Euphoria, Caspian’s power amplification architecture, revolutionary Rapture DAC technology and an advanced pre-amplifier and phono stage combine to deliver pristine sound, no matter what source a user prefers. 

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 new 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.

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.

Powerful DSP Engine

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. 

High-resolution Display

Caspian Series 4G’s new monochrome 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.