Roksan CASPIAN 4G integrated silver

Roksan Caspian 4G Integrated Amplifier

At the heart of the Caspian 4G Integrated lies Euphoria technology, an innovative Class AB amplification architecture. This approach uses separate power supplies for the current and voltage stages, thereby reducing unwanted interactions. The result? A purer, more detailed sound with remarkable clarity.

Roksan has focused on a design that maintains consistent harmonic distortion and sound clarity, regardless of frequency or load. This technical feat translates into exceptional sound performance, capable of satisfying the most discerning ears.

Rapture DAC: Enhanced Digital-to-Analog Conversion

The Caspian 4G Integrated features Rapture DAC technology, a differential conversion topology with a current conveyor. This innovative approach extracts more information from the digital signal, resulting in an analog reproduction of unmatched fidelity.

The benefits of this technology are numerous: extended bandwidth, optimized gain, and increased precision in reproducing high-resolution audio formats. The Rapture DAC thus sets new standards in digital-to-analog conversion.

An Exceptional Preamplifier

The Caspian 4G Integrated boasts a completely redesigned analog preamplifier. Its carefully balanced design offers optimal noise reduction, ensuring maximum signal purity.

One of the major innovations lies in its input ground switching system. Inherited from the Attessa range and perfected, this device keeps crosstalk between connected devices at an extremely low level, thus preserving the integrity of the sound signal.

High-Precision Hybrid Volume Control

Roksan has chosen an innovative approach for the volume control of the Caspian 4G Integrated. Instead of sticking to a purely digital or analog solution, the engineers developed a hybrid system combining the best of both worlds.

This unique design offers exceptional precision in volume adjustment while preserving sound quality. It also allows for the integration of advanced features such as tone controls and system adaptation, accessible via the dedicated app.

Comprehensive and Scalable Connectivity

The Caspian 4G Integrated doesn’t skimp on connection options. It features RCA and XLR analog inputs, an MM/MC phono input for vinyl enthusiasts, as well as multiple digital inputs (coaxial and optical).

Wireless connectivity is also well-covered with Bluetooth LE (Low Energy), providing a convenient solution for streaming from mobile devices.

Elegant and Functional Design

The aesthetics of the Caspian 4G Integrated combine simplicity and modernity. Its extruded aluminum chassis, with integrated side heatsinks, reflects a keen attention to detail. The user interface, centered around a high-contrast monochrome OLED display, offers an intuitive and pleasant experience.

Design is not just about appearance: aesthetic choices also contribute to optimizing the acoustic performance of the device, perfectly illustrating Roksan’s transparent design philosophy.

An Enhanced User Experience

MaestroUnite App: Control at Your Fingertips

The MaestroUnite app allows you to fully exploit the capabilities of the Caspian 4G Integrated. It provides access to an intelligent DSP engine offering four optimization technologies:

• Intelligent Tone: For fine-tuning tonal balance
• Intelligent Boundary: To compensate for the listening environment’s influence
• Intelligent Speaker: For optimal adaptation to the speakers used
• Intelligent Phono: To get the best out of the connected turntable

These features allow the user to refine their listening experience based on their setup and personal preferences.

Technical Specifications

Core Technologies

• Euphoria amplifier: dual-mono Class AB design
• Rapture digital-to-analog converter (DAC): digital-to-analog conversion technology
• Preamplifier: advanced design for optimal signal transfer

Amplification Performance

• Output power:
  • 105 W into 8 Ω (230 V AC ±5% THD)
  • 200 W into 4 Ω (two channels)
• Power supply: 600 VA, 58,400 µF with fixed rail
• Total harmonic distortion plus noise (THD+N): < 0.007% (1 kHz, 2 channels, 1 W at 8 Ω)
• Gain: 29 dB
• Maximum input level: 3.9 Vrms
• Signal-to-noise ratio: > 108 dB
• Channel matching: < 0.5 dB
• Frequency response: 20 Hz to 20 kHz (+0.25 dB / -0.3 dB)

Preamplifier Section

• Moving magnet (MM) gain: 53 dB
• Gain settings: Low (-6 dB), Medium (0 dB), High (+6 dB)
• Moving magnet input impedance: 47 kΩ / 100 pF (phono), 47 kΩ / 150 pF (line)
• RIAA accuracy: +0.3 dB / -0.2 dB, 20 Hz to 20 kHz

Connectivity

Inputs

• Analog: 2 stereo RCA, 2 balanced XLR, 1 Phono MM/MC
• Digital: 2 coaxial, 2 optical (24-bit / 192 kHz)
• Network: RJ45, Bluetooth Low Energy (LE), Wi‑Fi
• Other: wired infrared (IR)

Outputs

• Speakers: left and right binding posts
• Preamplifier: 1 balanced XLR, 2 stereo RCA
• Subwoofer
• 12 V trigger

Physical Characteristics

• Dimensions: 440 × 402 × 93 mm
• Weight: 15.2 kg
• Construction: anodized aluminum (front panel and top cover)
• Power supply: 100–120 V AC, 220–240 V AC (automatic selection)
• Power consumption: 610 VA max, 0.5 W standby, 2 W network standby

Wireless Connectivity

• Bluetooth: A2DP, codecs SBC, aptX, AAC, 25 m range
• HDMI: Audio Return Channel (ARC), Enhanced Audio Return Channel (eARC)
• Mobile app: iOS, Android