
Details
Description
Roksan Caspian 4G Streaming Pre-Amplifier
The Roksan Caspian 4G Streaming Pre-Amplifier brings together high-end analogue pre-amplification with BluOS streaming, Rapture DAC technology, digital and analogue inputs including a built-in MM/MC phono stage and an HDMI ARC input for connection to compatible TVs.
Designed as the natural partner for the Caspian 4G Power Amplifier, it handles streaming, vinyl, digital and analogue sources with ease, while balanced XLR outputs make it suitable for a wide range of premium power amplifiers.
BluOS High-Resolution Streaming
Built-in BluOS provides access to a wide range of streaming services, internet radio and locally stored music, with playback at up to 24-bit/192kHz. Multi-room support allows music to be shared across compatible BluOS products throughout the home, while Roon Ready certification makes integration with a Roon-based system straightforward.
Rapture DAC Technology
For digital playback, Roksan’s Rapture DAC architecture is designed to deliver low noise, excellent resolution and a natural tonal balance. Streaming services, digital sources and TV audio all benefit from the same carefully engineered conversion stage, helping maintain a consistent level of performance across the system.
HDMI eARC Connectivity for TV Sound
HDMI eARC allows a compatible television to become part of the main hi-fi system, routing TV sound through the stereo speakers for a far more engaging experience. Volume control can remain with the TV remote, making the setup feel simple and intuitive while avoiding the need for a separate AV receiver.
MM and MC Phono Stage
Vinyl listeners are well catered for with built-in support for both Moving Magnet and Moving Coil cartridges. A turntable can therefore connect directly to the pre-amplifier without the need for an external phono stage, making the Caspian equally comfortable with analogue and digital sources.
Flexible Analogue and Digital Connectivity
A broad range of inputs and outputs makes system building straightforward, whether the focus is streaming, vinyl, CD or television sound. Both RCA and balanced XLR pre-amplifier outputs are provided, along with a dedicated subwoofer output for adding low-frequency reinforcement to a stereo system.
Bluetooth with aptX also provides a convenient option for casual wireless playback.
MaestroUnite Setup and Control
System configuration is handled through Roksan’s MaestroUnite app, giving access to input setup, gain adjustment, balance and power management from a compatible phone or tablet.
Over-the-air firmware updates help keep the system current without the need for manual servicing or software installation.
Ultra-High-Resolution Volume Control
Roksan’s Ultra-High-Resolution Volume Control provides fine adjustment across the listening range, helping preserve channel balance and low-level detail even at quieter volumes. That extra precision becomes particularly useful in high-resolution systems where small changes in level can make a noticeable difference.
Premium Caspian 4G Design
Machined and extruded aluminium casework gives the Caspian 4G a substantial, refined appearance, complemented by a clean front panel and high-contrast OLED display. Available in Black or Silver, it pairs visually with the Caspian 4G Power Amplifier for a cohesive separates system.
Key Features:
- Built-in BluOS
- High-resolution streaming up to 24-bit/192kHz
- Roon Ready
- Roksan Rapture DAC technology
- HDMI eARC
- Bluetooth with aptX
- Built-in MM/MC phono stage
- Balanced XLR outputs
- Aluminium remote control included
- Black or Silver finish
A Versatile Centrepiece for a Premium System
The Caspian 4G Streaming Pre-Amplifier provides a highly capable central hub without compromising the benefits of dedicated separates. Paired with the Caspian 4G Power Amplifier, it forms a refined and scalable system with the flexibility to grow alongside the rest of the hi-fi setup.
Specifications
Specifications
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Connectivity Summary |
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Analogue Inputs |
2x RCA Stereo (A2, A3) |
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Digital Inputs |
2x Coax (D1, D2) |
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Analogue Outputs |
1x Balanced XLR (Pre1), |
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Other Inputs / Outputs |
Gigabit Ethernet RJ45, W-Fi 5, Wi-Fi 4, BLE, 12V |
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Power |
IEC C14, Fused 6.3AT |
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User Interface |
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Primary Interface (on unit) |
Dynamic Control Dial (with haptic feedback) to control volume, inputs & power |
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Secondary Interface (on unit) |
Backward, Play/Pause, Forward |
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Remote Control |
Black, 15 button IR remote. Bead blasted & anodised aluminium extruded case with laser etched logo. |
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Phono Section |
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Inputs |
MM& MC |
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Gain MM |
53dB |
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Gain Adjustment MM |
Low (-6dB), Mid (0dB default), High (+6dB) |
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Input Impedance MM |
47k ohms/100pF |
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Rapture DAC |
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DAC Technology |
Rapture DAC, Dual Mono Balanced |
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Format Support |
PCM |
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Sampling Rate |
up to 24bit / 192kHz |
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Pre-Amplifier Section (Amp, Pre1, Pre2) |
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Volume Control Technology |
Hybrid Digital Analogue |
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Volume Control Matching |
<0.25dB |
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THD+N (3.9Vrms, A-Weighted) |
<0.0008% |
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Signal to Noise Ratio (3.9Vrms, A-Weighted) |
>108dB |
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Maximum Output Level |
3.9Vrms |
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Supported Features |
Pre-Output, Line Level Output (Fixed Level), Sub-Woofer Output (Low-Pass Filtered), Intelligent DSP |
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Pre-Amplifier Section (Pre3) |
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Volume Control Technology |
Digital |
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Volume Control Matching |
<0.25dB |
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THD+N (3.9Vrms, A-Weighted) |
<0.003% |
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Signal to Noise Ratio (3.9Vrms, A-Weighted) |
>108dB |
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Maximum Output Level |
3.9Vrms |
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Supported Features |
Pre-Output, Line Level Output (Fixed Level), Sub-Woofer Output (Low-Pass Filtered), Intelligent DSP |
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Bluetooth |
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Protocol |
A2DP Audio Profile |
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Codecs |
SBC, aptX & AAC |
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Range |
>15m |
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Digital Inputs |
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Coax Inputs (D1, D2) |
up to 24bit / 192kHz (Stereo) |
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Optical Inputs (D3, D4) |
up to 24bit / 192kHz (Stereo) |
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HDMI ARC & eARC |
Yes (2.0) |
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Analogue Inputs |
|
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Maximum Input Level |
6.7Vrms |
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Music Sense |
A2 Input |
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AV Mode |
A2 Input |
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BluOS Section |
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BluOS Streaming Supported |
Yes |
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Audio Formats |
MP3, AAC, WMA, OGG, WMA-L ALAC, OPUS |
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Hi-Resolution Audio Formats |
MQA, FLAC, WAV AIFF, Supports converted DSD playback via the desktop app only. |
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Sampling Rate |
up to 192kHz |
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Bit Depth |
16 - 24 Network Connectivity |
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Network Connectivity |
Gigabit Ethernet RJ45, W-Fi 5 |
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Supported Network File Storage Protocol |
Server Message Block (SMB) |
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USB |
1x Type-A port for connection to USB memory stick (FAT32 or NTFS formatted) and supported peripherals |
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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** |
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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 |
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Supported music services and partners |
Over 20 natively integrated streaming services. For more information go to https://bluos.io/ |
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Third Party Certified Services |
Apple Airplay, Spotify Connect, Tidal Connect |
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ROON Ready |
ROON Ready, ROON Tested |
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Control Integrations |
Creston, Control4 (OS3), Control4 (OS2), RTI, URC, BluOS URC Driver, URC, Lutron, NICE, GIRA, BluOS Integration Utility, BluOS Cusomt Integration API |
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Other |
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Wired IR Input |
5 - 14V, Mono 3.5mm jack plug, any polarity |
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12V Trigger Input |
5 - 14V, 3.5mm jack dual polarity (On / Standby) |
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12V Trigger Pass-through |
3.5mm jack Pass through from input only |
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Nominal Mains Voltage |
Auto-Selecting Power Supply, 100-120VAC & 220-240 VAC |
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Power Consumption |
85VA, Standby 0.5W, Network Standby 2W (Standby Plus, allows fast boot) |
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Physical |
|
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Avalible Finishes |
Silver, Black |
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Construction |
Extruded and machined Aluminimum front & top cover with extruded Aluminimum heatsinks. |
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External Dimensions with all accessories fitted (H x W x D) |
93 x 432 x 378mm |
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Weight (Product, Each) |
10.1 kg |
Delivery & Returns
Delivery & Returns
We offer free next day delivery on all orders over £99 (item must be in stock). For orders under £99 a delivery charge of £7.50 will be applied.
Cut-off time for next day delivery is 3pm Monday-Friday and 1.00pm Saturday. Items ordered after 1pm on Saturday or on Sunday will be shipped on Monday for Tuesday delivery. (please allow an extra day if a bank holiday falls within this period).
Our delivery partner DPD offers an interactive messaging service and will provide a 1-hour time window for your delivery so please provide a mobile phone number where possible.
Some items are not available on a next day delivery service, in these cases the selected product page will display the expected delivery time. If you would like to double check the delivery time prior to ordering please call 01932 851121 or email sales@weybridge-audio.co.uk.
* Remote and offshore locations are excluded from the free delivery service. For these locations we offer a standard 2-3 day delivery
service at £16 per item.
For more detailed info please see delivery information
Cancellations & Returns
At Weybridge Audio we want our customers to be happy with their purchase which is why we offer a 30-day no-hassle return policy on all products purchased through our website. If you would like to return an item please call us on 01932 851121 or email to sales@weybridge-audio.co.uk including your name, address, and original order number. The cost of returning an item is the responsibility of the customer unless the item is faulty in which case we will arrange to collect the faulty item at our expense.
Items must be returned to us in 'as new' condition, complete with all original packaging and accessories. Refunds will be processed within 5 days of receiving the item, subject to the above terms being met.
For more information please see our terms & conditions.