Roksan Goes All-In on High-End Streaming: Meet the Caspian 4G Pre/Power Duo

BluOS brains, British engineering, and a promise of “breathtaking musicality” – Roksan’s new flagship separates aim straight at the modern audiophile sweet spot.

Roksan is turning up the heat in the high-end amplifier market with the launch of two new reference components: the Caspian 4G Streaming Pre-Amplifier and the Caspian 4G Power Amplifier. Together, they complete the top tier of the brand’s latest Caspian Series 4G lineup and signal Roksan’s clearest statement yet in the post-Monitor Audio Group era.

This isn’t just about more power or shinier metal. It’s about blending serious analogue engineering with state-of-the-art streaming, and doing it in a way that feels both classic Roksan and unapologetically modern.

Streaming Without Compromise

At the heart of the new system sits the Caspian 4G Streaming Pre-Amplifier, built around the widely respected BluOS platform. That means native support for:

• Spotify Connect

• Tidal Connect

• Qobuz Connect

• Internet radio and multi-room streaming

• Roon Ready certification

  
  

Local playback is handled via Wi-Fi or Ethernet from NAS drives, with support up to 24-bit/192kHz PCM (no DSD, but clearly a deliberate design choice focused on real-world streaming use).

Roksan isn’t chasing features for the sake of it – instead, the emphasis is on clean signal paths, low noise, and precise digital-to-analogue conversion.

The Rapture DAC: Digital With an Analogue Soul

Roksan equips the preamp with its in-house Rapture DAC, a fully discrete, dual-mono, differential design rather than an off-the-shelf chip solution. The goal?Better stereo imaging, lower noise, and a more organic presentation than typical integrated DACs.

This feeds into a fully balanced analogue preamp stage, supported by multiple independent power supplies and ground-isolated inputs to minimise crosstalk and interference.

In short: the digital section is modern, but the sonic philosophy is firmly old-school audiophile.

Smart DSP That Respects the Music

Unlike many systems that treat DSP as a blunt instrument, Roksan uses it more surgically. Through the BluOS and MaestroUnite apps, users can access four intelligent tuning modes:

• Intelligent Tone

• Intelligent Boundary

• Intelligent Speaker

• Intelligent Phono

  
  

These allow subtle optimisation based on speaker placement, room boundaries and source types – not radical EQ, but fine control for real-world listening rooms.

The Power Behind the Promise: Caspian 4G Power Amplifier

The matching Caspian 4G Power Amplifier is where Roksan unleashes the muscle.

Using its proprietary Euphoria Class A/B topology, the amp delivers:

• 105W per channel into 8Ω

• 200W per channel into 4Ω

• Stereo or mono-block operation

  
  

Separate power supplies for voltage and current stages ensure high dynamic headroom, low distortion, and excellent control over difficult speaker loads.

This is not a “polite” power amp – it’s built to drive serious speakers with confidence, without sacrificing refinement.

Connectivity: Old-School Meets New-School

Around the back, Roksan covers all bases:

• Balanced XLR inputs

• Optical and coaxial digital inputs

• HDMI ARC for TV integration

• MM/MC phono stage for turntables

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This makes the Caspian 4G system just as comfortable in a pure hi-fi setup as in a modern living-room system.

Design & Build: British Minimalism, Properly Done

Visually, the Caspian 4G duo sticks to Roksan’s new design language:

• Minimal OLED display strip

• Single multi-function control dial

• Subtle orange LED indicators

• Chamfered aluminium edges and extruded heatsinks

  
  

Both units are hand-built in Essex, UK, at Monitor Audio Group’s headquarters – a detail that will matter to buyers who still care about where their gear comes from.

Pricing & Positioning

Roksan is placing the Caspian 4G firmly in the premium segment:

• Streaming Pre-Amplifier: £3500 / $4500 / €4000

• Power Amplifier: £3000 / $3750 / €3500

• Full System: £6500 / $8250 / €7500

  
  

This pits the duo against the likes of Naim, Hegel, and Marantz’s high-end separates – but with BluOS giving Roksan a serious edge in streaming usability.

The Bigger Picture

With the Caspian 4G pre/power combo, Roksan is clearly saying:streaming is no longer a side feature – it’s the core of high-end hi-fi.

Instead of forcing audiophiles to choose between analogue purity and digital convenience, Roksan is betting that the future lies in doing both properly, in the same box.

If the sound lives up to the engineering, the Caspian 4G system could be one of the most compelling modern reference amplifier platforms available right now – especially for listeners who want serious hi-fi performance without giving up the comfort of app-based streaming.