Roksan Caspian 4G Streaming Amplifier
The Caspian 4G delivers clean, powerful sound with a capacious soundstage, muscular yet agile bass, and a remarkably accomplished MM phono stage. StereoNET praised its precise, grain-free control, while SoundStage Solo found its BluOS-equipped, high-power performance engaging across streaming and vinyl alike.
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Deliciously Crispy
Sound Quality
93/100
Build Quality
93/100
Features Connectivity
95/100
Value for Money
93/100
Pros
Clean, detailed and rhythmically engaging presentation with precise, grain-free transients and strong control.
Spacious, three-dimensional imaging with convincing depth and clearly separated musical elements.
Excellent MM phono stage delivers lifelike timbre, impressive dynamics and natural vinyl replay.
Comprehensive single-box connectivity, including BluOS, HDMI eARC, digital and analogue inputs, pre-outs and flexible subwoofer controls.
Cons
MaestroUnite setup may require connecting a phone to a 2.4GHz Wi-Fi band, which proved inconvenient in testing.
The tonal balance is slightly warmer and darker than strict neutrality, and very high levels can introduce mild compression.
The onboard phono input supports moving-magnet cartridges only; moving-coil users need a transformer or external phono stage.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 93/100
Reviewers describe an unusually accomplished all-in-one amplifier: clean, controlled and highly detailed, yet musically rich rather than clinical. It combines substantial bass authority and dynamic confidence with a spacious, precisely organised presentation; the only recurring tonal qualification is a touch of warmth and darkness relative to strict neutrality.
Transparency Resolution
94/100
StereoNET found the Caspian clean, clear and precise, with superb detail from well-recorded material and no hint of grain. SoundStage Solo heard low-level backing vocals emerge clearly behind the lead vocal, while Fidelity noted silence between passages and an absence of digital artifacts in very quiet orchestral music.
Tonal Balance Musicality
92/100
Fidelity characterises the sound as rich, largely neutral and free of coloration, with considerable emotional pull on orchestral and acoustic music. SoundStage Solo found it ever so slightly darker and warmer than neutral, but praised its natural handling of vocal sibilants and its revelatory phono performance. StereoNET also highlights convincing instrumental timbre and a refined, well-ordered midrange.
Dynamics
93/100
Reviewers consistently found ample power and strong control. StereoNET praised razor-precise transients and lifelike handling of dynamic shifts, while Fidelity heard powerful, dry bass and enough reserve to drive a wide range of loudspeakers. SoundStage Solo reported astounding dynamics, although at very high levels it heard a slight, graceful compression rather than complete unconstrained effortlessness.
Soundstage Imaging
94/100
StereoNET heard a gloriously capacious, three-dimensional stage with enveloping depth. SoundStage Solo praised discrete placement of orchestral sections and clear separation of low-level voices, while Fidelity described tangible musicians arranged convincingly in the room. The presentation appears both spacious and sharply focused rather than merely wide.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
93/100
SoundStage Solo calls the construction absolutely rock-solid, praising the matte aluminum-alloy casework and purposeful integration of the heatsinks. Fidelity likewise describes an extremely well-made enclosure, and StereoNET considers the package very well built and elegant. Review coverage is strongly positive about fit, finish and physical solidity.
Features Connectivity
95/100
The Caspian is exceptionally comprehensive for a streaming integrated amplifier. BluOS streaming, Ethernet and Wi-Fi, AirPlay 2, Bluetooth, HDMI eARC, USB-A playback, coaxial and optical digital inputs, RCA and balanced analogue inputs, and balanced and single-ended preamp outputs cover most modern systems. It also provides useful system-matching and subwoofer tools, including tone adjustment, Intelligent Loudness, adjustable crossover and polarity inversion.
Value for Money
93/100
At approximately $5,000, SoundStage Solo notes that its compact chassis conceals a quantity and quality of sound that is unusually substantial. StereoNET says its music reproduction belies the asking price and compares its single-box high-resolution capability to multi-box systems once costing five figures, while still acknowledging strong competition at this level. Fidelity praises the product's common sense in technology, sound and pricing.
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Specifications
- Available Finishes
- Silver, Black
- Construction
- Extruded and machined Aluminimum front & top cover with extruded Aluminimum heatsinks.
- External Dimensions with all accessories fitted (H x W x D)
- 93 x 432 x 378 mm (311/16 x 17 x 147/8")
- Weight (Product, Each)
- 15.5 kg (34 lb 3 oz)
- Warranty
- 5 years
Manufacturer's Description — Roksan
The Caspian Streaming Amplifier unleashes the power of BluOS, premium multi-room high-resolution wireless streaming through the smart implementation of Euphoria Class A/B amplification, Caspian’s powerful twin-independent amplification architecture, the revolutionary Rapture DAC technology, for improved digital to analog signal conversion, and an advanced pre-amplifier and phono stage. All from a sleek aluminum design that exudes quality.
Features at a glance:
BluOS | HDMI eARC | MQA | Bluetooth aptX | AirPlay 2 | Moving Magnet Phono Stage | Euphoria Amplification | Rapture DAC Technology | RCA, XLR and Subwoofer Outputs | MaestroUnite Setup & Control App
For today’s connected consumer and music lover – glorious high-fidelity
Configured and controlled using the intuitive MaestroUnite app, the Caspian Streaming Amplifier delivers extraordinary levels of detailed, high-fidelity sound. Designed for the user.
Made and designed for the user
Caspian Series 4G’s electronics architecture is something really very special. It benefits from an advanced feature set, that ensures all use-cases are being delivered upon. Its flexibility, usability and powerful musical delivery are built into our innovative ‘digital first’ DNA and physical design.
BluOS enabled, premium streaming up to 24-bit/192kHz
The built-in BluOS premium multi-room audio technology can stream up to 64 zones, all controllable via your smart phone.
BluOS supports the world’s most popular streaming services, so you can enjoy unlimited music and podcasts at your fingertips.
Attessa and Caspian users can enjoy a fully immersive whole-home enhanced listening experience in true high-fidelity.
Roon plays on every device
Roon lets you listen to music on all your gear, with support for over a thousand audio devices. Roon Ready products feature Roon’s high-resolution streaming technology built in, and you can also play music on hundreds of AirPlay, Chromecast, USB, HDMI, and other devices, all controlled by one app.
Caspian 4G Remote Control — Total performance at your fingertips
Both the Caspian Streaming Amplifier and Integrated Amplifier come with an elegant and practical Roksan remote control to help users operate their device with ease.
Beautifully designed, its ergonomic, aluminum extruded design is perfectly weighted to sit comfortably in the hand. The buttons are clear and intuitive to use, helping the user navigate through the inputs and directly set pre-sets, as well as a host of standard operational features.
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Authorized dealers for Roksan Caspian 4G Streaming Amplifier
- 110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
- 138 Quaiduson — online and in-store — Lille, Hauts-de-France, France (website)
- Acton Gate Audio — online and in-store — Cymru, United Kingdom (website)
- ALAIN CHOUKROUN — online and in-store — Paris, Île-de-France, France (website)
- Alen Audio — in-store — Extramurs, Comunidad Valenciana, Spain (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Analogue Seduction — online and in-store — Whittlesey, England, United Kingdom (website)
- Art Sonique — France (website)
- Audio Evolution — online and in-store — Volla, Campania, Italy (website)
- Audio Magic - EU — online and in-store — Wola, Województwo mazowieckie, Poland (website)
and 101 more verified dealers