Roksan Caspian 4G Streaming Pre-Amplifier

$8,500.00

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Colour: Black

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The Caspian 4G Streaming Pre-Amplifier is the control centre of a modern high-end system — combining precision analogue preamplification with state-of-the-art music streaming in one beautifully engineered component.

Designed and built in the UK, it brings together flexibility, performance and simplicity, allowing you to access your entire music world while preserving the unmistakable musicality the Caspian name is known for.

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Connectivity Summary
Inputs (Analogue)
2x RCA Stereo (A1, A2), 1x Balanced XLR (A3)

Inputs (Digital)
2x Coax (D1, D2), 2x Optical (D3, D4), Bluetooth Audio, BluOS, HDMI eARC

Outputs (Analogue)
1x Balanced XLR (Pre1), 1x RCA Stereo (Pre2), 1x RCA Stereo (Pre3)

Amplifier Outputs
1 x Pair of Speaker binding posts (L&R)

Other Inputs / Outputs
Gigabit Ethernet RJ45, W-Fi 5, Wi-Fi 4, BLE, 12V Trigger, Wired IR

Power
IEC C14, Fused 6.2AT

User Interface
Primary Interface (on unit)
Dynamic Control Dial (with haptic feedback) to control volume, inputs & power

Secondary Interface (on unit)
Backward, Play/Pause, Forward

Remote Control
Black, 15 button IR remote. Bead blasted & anodised aluminium extruded case with laser etched log

Power Amplification Section
Power Amplifier Technology
Dual Mono Euphoria Amplifier

Amplifier Class
AB

Output Power, 8 0hms (235VAC @ 1% THD, both channels driven)
105 W

Output Power, 4 0hms (235VAC @ 1% THD, both channels driven)
200 W

THD+N (1W @ 1kHz Both Channels driven)
<0.007%

Gain
29dB

Signal to Noise (1W/8R 2Vrms A1, both channels driven)
>85dB

Gain Matching
<0.5dB

Frequency Linearity (20Hz - 20kHz)
+-0.25dB

Power Supply
600VA / 36,400uF per Rail

Phono Section
Inputs
MM

Gain MM
53dB

Gain Adjustment MM
Low (-6dB), Mid (0dB default), High (+6dB)

Input Impedance MM
47k ohms/100pF

Gain MC
73dB

Gain Adjustment MC
Low (-6dB), Mid (0dB default), High (+6dB)

Input Impedance MC
100 ohms/470pF

RIAA response accuracy MM/MC
+-0.3dB 20Hz - 20kHz

Rapture DAC
DAC Technology
Rapture DAC, Dual Mono Balanced

Format Support
PCM

Sampling Rate
up to 24bit / 192kHz

Pre-Amplifier Section (Amp, Pre1, Pre2)
Volume Control Technology
Hybrid Digital Analogue

Volume Control Matching
<0.25dB

THD+N (3.9Vrms, A-Weighted)
<0.0008%

Signal to Noise Ratio (3.9Vrms, A-Weighted)
>108dB

Maximum Output Level
3.9Vrms

Supported Features
Pre-Output, Line Level Output (Fixed Level), Sub-Woofer Output (Low-Pass Filtered), Intelligent DSP

Bluetooth
Protocol
A2DP Audio Profile

Codecs
SBC, aptX & AAC

Range
<15m

Digital Inputs
Coax Inputs (D1,D2)
up to 24bit / 192kHz (Stereo)

Optical Inputs (D3,D4)
up to 24bit / 192kHz (Stereo)

HDMI ARC & eARC
Yes (2.0)

Analogue Inputs
Maximum Level Input
6.7Vrms

Music Sense
A2 Input

AV Mode
A2 Input

BluOS Section
BluOS Streaming Supported
Yes

Audio Formats
MP3, AAC, WMA, OGG, WMA-L ALAC, OPUS

Hi-Resolution Audio Formats
MQA, FLAC, WAV AIFF, Supports converted DSD playback via the desktop app only

Sampling Rate
up to 192kHz

Bit Depth
16 - 24

Network Connectivity
“Gigabit Ethernet RJ45, W-Fi 5”

Supported Network File Storage Protocol
Server Message Block (SMB)

USB
1x Type-A port for connection to USB memory stick (FAT32 or NTFS formatted) and supported peripherals

Supported Operating System
Music playback from network shares on the following desktop operating systems: Microsoft Windows XP, 2000, Vista, 7, 8 to current Windows Operating Systems and macOS versions**

Mobile Application
Free BluOS Controller App available for download from the respective App stores of Apple iOS devices (iPad, iPhone and iPod), Android devices, Kindle Fire and Windows or macOS desktops

Supported music services and partners
Over 20 natively integrated streaming services. For more information go to https://bluos.io/

Third Party Certified Services
Apple Airplay, Spotify Connect, Tidal Connect

Roon Ready
Yet to be confirmed

Control Integrations
Creston, Control4 (OS3), Control4 (OS2), RTI, URC, BluOS URC Driver, URC, Lutron, NICE, GIRA, BluOS Integration Utility, BluOS Cusomt Integration API

MaestroUnite
MaestroUnite Supported
Yes

Network Connectivity
Bluetooth LE Wi-Fi 4 (Only connects for Over-the-Air Updates)

Mobile Application
IoS, Android

Over-the-Air Updates
Firmware Updates are available via the MaestroUnite configured Wi-Fi connection. This can be setup to connect & update on user request or during periods of inactivity

Other
Wired IR Input
5 - 14V, Mono 3.5mm jack plug, any polarity

12V Trigger Input
5 - 14V, 3.5mm jack dual polarity (On / Standby)

12V Trigger Passthrough
3.5mm jack Pass through from input only

Nominal Mains Voltage
Auto-Selecting Power Supply, 100-120VAC & 220-240 VAC

Power Consumption
Max 610VA, Standby 0.5W, Network Standby 2W (Standby Plus, allows fast boot)

Available Finishes
Silver, Black

Construction
Extruded and machined Aluminium front & top cover with extruded Aluminium heatsinks

Dimensions with all Accessories Fitted (W x H x D)
93 x 432 x 378 mm

Weight
15.5 kg

Specifications

Connectivity Summary
Inputs (Analogue)
2x RCA Stereo (A1, A2), 1x Balanced XLR (A3)

Inputs (Digital)
2x Coax (D1, D2), 2x Optical (D3, D4), Bluetooth Audio, BluOS, HDMI eARC

Outputs (Analogue)
1x Balanced XLR (Pre1), 1x RCA Stereo (Pre2), 1x RCA Stereo (Pre3)

Amplifier Outputs
1 x Pair of Speaker binding posts (L&R)

Other Inputs / Outputs
Gigabit Ethernet RJ45, W-Fi 5, Wi-Fi 4, BLE, 12V Trigger, Wired IR

Power
IEC C14, Fused 6.2AT

User Interface
Primary Interface (on unit)
Dynamic Control Dial (with haptic feedback) to control volume, inputs & power

Secondary Interface (on unit)
Backward, Play/Pause, Forward

Remote Control
Black, 15 button IR remote. Bead blasted & anodised aluminium extruded case with laser etched log

Power Amplification Section
Power Amplifier Technology
Dual Mono Euphoria Amplifier

Amplifier Class
AB

Output Power, 8 0hms (235VAC @ 1% THD, both channels driven)
105 W

Output Power, 4 0hms (235VAC @ 1% THD, both channels driven)
200 W

THD+N (1W @ 1kHz Both Channels driven)
<0.007%

Gain
29dB

Signal to Noise (1W/8R 2Vrms A1, both channels driven)
>85dB

Gain Matching
<0.5dB

Frequency Linearity (20Hz - 20kHz)
+-0.25dB

Power Supply
600VA / 36,400uF per Rail

Phono Section
Inputs
MM

Gain MM
53dB

Gain Adjustment MM
Low (-6dB), Mid (0dB default), High (+6dB)

Input Impedance MM
47k ohms/100pF

Gain MC
73dB

Gain Adjustment MC
Low (-6dB), Mid (0dB default), High (+6dB)

Input Impedance MC
100 ohms/470pF

RIAA response accuracy MM/MC
+-0.3dB 20Hz - 20kHz

Rapture DAC
DAC Technology
Rapture DAC, Dual Mono Balanced

Format Support
PCM

Sampling Rate
up to 24bit / 192kHz

Pre-Amplifier Section (Amp, Pre1, Pre2)
Volume Control Technology
Hybrid Digital Analogue

Volume Control Matching
<0.25dB

THD+N (3.9Vrms, A-Weighted)
<0.0008%

Signal to Noise Ratio (3.9Vrms, A-Weighted)
>108dB

Maximum Output Level
3.9Vrms

Supported Features
Pre-Output, Line Level Output (Fixed Level), Sub-Woofer Output (Low-Pass Filtered), Intelligent DSP

Bluetooth
Protocol
A2DP Audio Profile

Codecs
SBC, aptX & AAC

Range
<15m

Digital Inputs
Coax Inputs (D1,D2)
up to 24bit / 192kHz (Stereo)

Optical Inputs (D3,D4)
up to 24bit / 192kHz (Stereo)

HDMI ARC & eARC
Yes (2.0)

Analogue Inputs
Maximum Level Input
6.7Vrms

Music Sense
A2 Input

AV Mode
A2 Input

BluOS Section
BluOS Streaming Supported
Yes

Audio Formats
MP3, AAC, WMA, OGG, WMA-L ALAC, OPUS

Hi-Resolution Audio Formats
MQA, FLAC, WAV AIFF, Supports converted DSD playback via the desktop app only

Sampling Rate
up to 192kHz

Bit Depth
16 - 24

Network Connectivity
“Gigabit Ethernet RJ45, W-Fi 5”

Supported Network File Storage Protocol
Server Message Block (SMB)

USB
1x Type-A port for connection to USB memory stick (FAT32 or NTFS formatted) and supported peripherals

Supported Operating System
Music playback from network shares on the following desktop operating systems: Microsoft Windows XP, 2000, Vista, 7, 8 to current Windows Operating Systems and macOS versions**

Mobile Application
Free BluOS Controller App available for download from the respective App stores of Apple iOS devices (iPad, iPhone and iPod), Android devices, Kindle Fire and Windows or macOS desktops

Supported music services and partners
Over 20 natively integrated streaming services. For more information go to https://bluos.io/

Third Party Certified Services
Apple Airplay, Spotify Connect, Tidal Connect

Roon Ready
Yet to be confirmed

Control Integrations
Creston, Control4 (OS3), Control4 (OS2), RTI, URC, BluOS URC Driver, URC, Lutron, NICE, GIRA, BluOS Integration Utility, BluOS Cusomt Integration API

MaestroUnite
MaestroUnite Supported
Yes

Network Connectivity
Bluetooth LE Wi-Fi 4 (Only connects for Over-the-Air Updates)

Mobile Application
IoS, Android

Over-the-Air Updates
Firmware Updates are available via the MaestroUnite configured Wi-Fi connection. This can be setup to connect & update on user request or during periods of inactivity

Other
Wired IR Input
5 - 14V, Mono 3.5mm jack plug, any polarity

12V Trigger Input
5 - 14V, 3.5mm jack dual polarity (On / Standby)

12V Trigger Passthrough
3.5mm jack Pass through from input only

Nominal Mains Voltage
Auto-Selecting Power Supply, 100-120VAC & 220-240 VAC

Power Consumption
Max 610VA, Standby 0.5W, Network Standby 2W (Standby Plus, allows fast boot)

Available Finishes
Silver, Black

Construction
Extruded and machined Aluminium front & top cover with extruded Aluminium heatsinks

Dimensions with all Accessories Fitted (W x H x D)
93 x 432 x 378 mm

Weight
15.5 kg

The Caspian 4G is one of the few amplifiers that, after just a short listening session, makes you ask yourself, “What more could I possibly want?”

Fidelity Magazine

BluOS enabled, premium streaming

The built-in BluOS premium multi-room audio technology can stream up to 64 zones, all controllable via your smartphone.

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

All Caspian 4G amplifiers come with an elegant and practical Roksan remote control to help users operate their devices with ease.

Beautifully designed, its ergonomic, aluminium-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 presets, as well as a host of standard operational features.

With the new Caspian, Roksan has succeeded in creating a no-nonsense device that demonstrates common sense in terms of technology, sound, and pricing, something I find myself increasingly missing in the audiophile scene. Well done, folks!