Caspian 4G Streaming Amplifier
The Caspian Streaming Amplifier unleashes the power of BluOS, premium multi-room high-resolution wireless streaming through the smart implementation of Euphoria, Caspian’s powerful twin-independent amplification architecture, the revolutionary Rapture DAC technology, for improved digital to analogue signal conversion, and an advanced pre-amplifier and phono stage. All from a sleek aluminium design that exudes quality.
Key Features
- 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.
MaestroUnite – All From a Single App
Unify your system and discover a deeper connection to Roksan and Monitor Audio.
The Roksan and Monitor Audio ‘MaestroUnite’ App revolutionises system setup and audio control, offering consumers a seamless and intuitive way to manage and enhance their high-fidelity audio systems.
This innovative app enables users to effortlessly explore advanced configurations, customise audio preferences, support Over-The-Air (OTA) updates and build an augmented eco-system of supported Monitor Audio Group products.
MaestroUnite is a user-friendly interface with robust functionality making it an essential tool for anyone seeking to elevate their home audio experience. Listen Again.
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/192 kHz
The built-in BluOS premium multi-room audio technology in the Attessa Streaming Amplifier supports 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.
With the Attessa Streaming Amplifier, users can enjoy a fully immersive whole-home enhanced listening experience in true high-fidelity.
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, 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 pre-sets, as well as a host of standard operational features.
| Connectivity Summary | |
| Analogue Inputs | Class-AB |
| Inputs | 2 x RCA Stereo (A1, A2), 1 x Balanced XLR (A3) |
| Digital Inputs | 2 x Coax (D1, D2), 2 x Optical (D3, D4), Bluetooth Audio, BluOS, HDMI eARC |
| Analogue Outputs | 1 x Balanced XLR (Pre 1), 1 x RCA Stereo (Pre 2), 1 x RCA Stereo (Pre 3) |
| Amplifier Output | 1 x Pair of Speaker binding posts (L & R) |
| Other Inputs / Outputs | Gigabit Ethernet RJ45, W-Fi 5, Wi-Fi 4, BLE, 12 V 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 Logo. |
| Power Amplifier Section | |
| Power Amplifier Technology | Dual Mono Euphoria Amplifier |
| Amplifier Class | AB |
| Output Power, 8 0hms (235 VAC @ 1% THD, Both Channels Driven) | 105 W |
| Output Power, 4 0hms (235 VAC @ 1% THD, Both Channels Driven) | 200 W |
| THD+N (1 W @ 1 kHz Both Channels Driven) | <0.007% |
| Gain | 29 dB |
| Signal to Noise (1 W / 8 R 2 Vrms A1, Both Channels Driven) | >85 dB |
| Gain Matching | <0.5 dB |
| Frequency Linearity (20 Hz - 20 kHz) | +-0.25 dB |
| Power Supply | 600 VA / 36,400 uF per Rail |
| Phono Section | |
| Inputs | MM |
| Gain MM | 53 dB |
| Gain Adjustment MM | Low (-6 dB), Mid (0 dB Default), High (+6 dB) |
| Input Impedance MM | 47k Ohms / 100 pF |
| Gain MC | 73 dB |
| Gain Adjustment MC | Low (-6 dB), Mid (0 dB Default), High (+6 dB) |
| Input Impedance MC | 100 Ohms / 470 pF |
| RIAA Response Accuracy MM/MC | +-0.3 dB 20 Hz - 20 kHz |
| Rapture DAC | |
| DAC Technology | Rapture DAC, Dual Mono Balanced |
| Format Support | PCM |
| Sampling Rate | Up to 24 Bit / 192 kHz |
| Pre-Amplifier Section (Amp, Pre 1, Pre 2) | |
| Volume Control Technology | Hybrid Digital Analogue |
| Volume Control Matching | <0.25 dB |
| THD+N (3.9 Vrms, A-Weighted) | <0.0008% |
| Signal to Noise Ratio (3.9 Vrms, A-Weighted) | >108 dB |
| Maximum Output Level | 3.9 Vrms |
| Supported Features | Pre-Output, Line Level Output (Fixed Level), Sub-Woofer Output (Low-Pass Filtered), Intelligent DSP |
| Pre-Amplifier Section (Pre 3) | |
| Volume Control Technology | Digital |
| Volume Control Matching | <0.25 dB |
| THD+N (3.9 Vrms, A-Weighted) | <0.003% |
| Signal to Noise Ratio (3.9 Vrms, A-Weighted) | >108 dB |
| Maximum Output Level | 3.9 Vrms |
| 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 |
| THD+N (3.9 Vrms, A-Weighted) | <0.003% |
| Range | >15 m |
| Digital Inputs | |
| Coax Inputs (D1, D2) | Up to 24 Bit / 192 kHz (Stereo) |
| Optical Inputs (D3, D4) | Up to 24 Bit / 192 kHz (Stereo) |
| HDMI ARC & eARC | Yes (2.0) |
| Analogue Inputs | |
| Maximum Input Level | 6.7 Vrms |
| 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 192 kHz |
| Bit Depth | 16 - 24 |
| Network Connectivity | Gigabit Ethernet RJ45, W-Fi 5 |
| Supported Network File Storage Protocol | Server Message Block (SMB) |
| USB | 1 x 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 | TBC |
| 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 - 14 V, Mono 3.5 mm Jack Plug, Any Polarity |
| 12 V Trigger Input | 5 - 14 V, 3.5 mm Jack Dual Polarity (On / Standby) |
| 12 V Trigger Pass-through | 3.5 mm Jack Pass Through From Input Only |
| Nominal Mains Voltage | Auto-Selecting Power Supply, 100-120 VAC & 220-240 VAC |
| Power Consumption | Max. 610 VA, Standby 0.5 W, Network Standby 2 W (Standby Plus, Allows Fast Boot) |
| Mechanical | |
| 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 (3 11/16 x 17 x 14 7/8”) |
| Weight (Product, Each) | 15.5 kg (34 lb 3 oz) |
| Sold As | Single |
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