Roksan Caspian 4G Integrated Amplifier

Caspian Integrated Amplifier

The Caspian Integrated Amplifier delivers total performance through its innovative Euphoria amplification architecture and advanced analogue connections, offering a flawless music presentation via any source. The evolutionary Rapture DAC technology, for improved digital to analogue signal conversion, allows for a near-perfect signal transfer and ensures that the Euphoria dual amplification architecture delivers total performance from whatever source a user connects.

Key Features

• 105 Watts into 8 Ohms / 200 Watts into 4Ohms
• Euphoria: powerful dual-mono AB amplifier architecture for total power and control
• Rapture DAC Technology
• RCA, XLR and Subwoofer Outputs 
• High-performance MM/MC phono stage
• Bluetooth aptX
• MaestroUnite Setup & Control
• 5-Year warranty

Rapture DAC

Caspian Series 4G features Rapture DAC technology; a differential current-conveyor topology. Roksan has designed it differently because it’s better this way – it allows more information to be extracted for the best possible analogue reproduction.  This topology has several measurable advantages over the traditional digital to analogue reconstruction approach 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. Rapture represents a completely fresh way of taking the digital signal and converting it into analogue.

Key DAC Spec

• Dual-Mono Topology: each channel is derived by the summation of two switched current sources to improve linearity with the current-to-voltage transform and filtering by the discrete current conveyor.
• LVDS (low-voltage differential signalling) transfer of sensitive timing and digital audio information: time-aligned signals can corrupt the operation of adjacent analogue circuits and are themselves easily and irretrievably upset. Roksan has engineered a network of matched transmission lines for perfect digital signal integrity with no associated noise footprint. Delivering the most accurate stereo imaging, breath-taking resolution and an inky-black quietness between musical passages.

Analogue pre-amplifier and Phono stage

Caspian Series 4G utilises a new analogue pre-amplifier section, the aim of which is to ensure that the signal is kept as clean as possible. A carefully configured and fully balanced design, it delivers the highest levels of noise rejection possible. It boasts a novel ground switching input design, which keeps cross-talk between connected devices at an extremely low level. This feature is inherited and improved upon from Roksan’s Attessa range.
The use of multiple dedicated power supplies means Caspian Series 4G receives the cleanest delivery of current with the minimum of noise, which means it can deliver even greater audio performance. 
Along with a range of balanced and un-balanced inputs, the Caspian Series 4G’s preamplifier stage allows total flexibility between connected devices. Plus, thanks to its advanced integration, signal paths between adjoining system elements are seamless.

Phono Stage

The Caspian Series 4G’s phono stage facilitates extremely accurate playback of vinyl. It features dedicated inputs for both MM and MC cartridges, and the RIAA (Recording Industry Association of America) filter and equalization of each product is individually calibrated to cancel out component tolerances, thus ensuring the purest vinyl experience possible. Both Caspian Series 4G models feature pre-loaded profiles for the Roksan Chorus 2 and Shiraz cartridges, to further enhance the enjoyment of the user’s record collection.

DSP Engine

Roksan’s desire for total performance is aided further by the integration of Caspian Series 4G’s powerful DSP Engine. This vital element delivers the intelligence and flexibility that helps the user tailor their listening experience to their environment and taste. It ensures Caspian 4G fully realises the accurate replay of the original recording, just as the artist intended – from the studio, into your home.
The power of the Roksan DSP Engine is accessed through the intuitive MaestroUnite app, where a user can optimise their listening experience using four key technologies:

• Intelligent Tone
  
• Intelligent Boundary
  
• Intelligent Speaker
  
• Intelligent Phono

Who is Roksan

Roksan is a UK manufacturer of quality HiFi components and is renowned for designing, engineering and assembling some of the most highly regarded amplifiers, CD players and turntables on the market today. The Xerxes turntable was a truly iconic release for the company and was shortly followed by a full range of equally well-received premium turntable models. 

Roksan consistently builds award-winning products with the K3 Series and Caspian M2 Series being some of the most recognisable ranges in their catalogue today. Everything from Roksan is built from start to finish with the simple yet highly effective design philosophy of producing the best possible sounding product to a range of targeted price points.