Roksan Attessa Streaming Amplifier


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Hi-res streaming master

All the power of the Attessa Integrated Amplifier, with all the control of BluOS multi-room audio technology. The Attessa Streaming Amplifier gives you easy, one-touch access to all your devices, from TVs to turntables, from consoles to CD transports. Best of all, it gives you high-end audio capability with the kind of simple, smartphone-based control that we’ve come to expect in every area of our lives. The technology is complex, but using it couldn’t be simpler. So now, you can have hi-res audio in every room of your house – all at the touch of a button.


The Attessa Streaming Amplifier has the added benefit of BluOS, the powerful multi-room streaming platform. The Attessa Streaming Amplifier is compatible with more than 20 of the world’s leading streaming services and can stream wirelessly to as many as 64 zones. It has the same suite of digital inputs (all routed to the same high-performance Burr Brown 24bit/192kHz DAC that’s compatible with MQA and FLAC file formats and is compatible with high quality turntables. Wireless connectivity is simple and stable thanks to on-board aptX Bluetooth connectivity. With audio performance delivered by a fully balanced pre-amplifier and a Roksan Caspian-derived toroidal transformer turning out up to 130 watts of power, the Attessa Streaming Amplifier is compatible with pretty much any of your favourite loudspeakers.


  • Hi-Res music streaming with BluOS™ Premium Multi-Room Audio Technology which supports 20+ streaming services and can stream up to 64 zones, all controllable via your smart phone
  • The one touch dial control user-interface is both simple and intuitive to use. Select listening volume or source guided by a graphical interface incorporating haptic feedback to confirm your selection.
  • Three self-allocated BluOS presets directly available from the inputs list for instant access
  • Robust steel and aluminium construction with no visible aerials
  • A wide variety of digital and analogue connections including Bluetooth® and AirPlay 2
  • MaestroUnite setup for over the air updates and partnering of other devices to form a single Roksan system, a bespoke technology and app developed for Roksan
  • An integrated Moving Magnet phono stage allows the connection to a turntable without the need for additional boxes and accessories
  • A powerful amplifier capable of getting the most out of a variety of loudspeakers
  • SPDIF inputs will decode MQA encoded PCM streams including MQA CD’s played back by the Attessa CD Transport
  • Designed and developed in-house in the UK

    Power Output into 8 Ohm:  80W Both Channels Driven, Nominal (THD+N <0.1%)

    Power Output into 4 Ohm:  130W Both Channels Driven, Nominal (THD+N <0.1%)

    Inputs (Digital): 

    Digital 1 (D1) – Coax SPDIF (up to 192kHz/24bit)

    Digital 2 (D2) – Optical SPDIF (max. 96kHz/24bit)

    Digital 3 (TV) – Optical SPDIF (max. 96kHz/24bit)

    Digital 4 (CD) – Coax SPDIF (up to 192kHz/24bit)

    Digital 5 (Bluetooth) – Bluetooth (48kHz/16bit)

    Inputs (Analogue):

    A1 – Variable Input (no signal sense)

    A2 – Fixed Input (with signal sense)

    MM (Phono) - RIAA (equalised)


    1x pair Speaker binding posts (L&R)

    1x pair of RCA Analogue (Pre-out/SUB)

    3.5mm Stereo mini-jack headphone socket - 7.5Vrms drive suitable for all headphone types including high-impedance

    Other:  IEC mains power socket (3 pin)/Fuse holder 3.5mm mini-Jack – 12v trigger Input (On / Standby) IR wired input 3.5mm jack

    Construction:  Formed Plated steel and bespoke machined anodised aluminium front panel.

    Primary Interface (on unit):  Dynamic Control Dial (with haptic feedback) to control volume and inputs

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

    Other Interface:  IR remote

    Bluetooth:  A2DP Audio profile / Codecs: SBC, aptX & AAC Bluetooth Range: 15m (typical)

    Digital Coax Input:  up to 24bit/192kHz PCM

    Digital Optical Input:  up to 24bit/96kHz PCM

    MaestroUnite:  System Creation and Control Advanced System Setting Over the Air Updates via Wi-Fi

    Mains Transformer Rating:  400VA

    Dimensions (Including Encoder and Connections (W x H x D)):  432 x 76 x 373 mm

    Dimensions (Excluding Encoder and Connections (W x H x D)):  432 x 76 x 346 mm

    Weight:  10.2 kg

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

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

    Sampling Rate:  Up to 24 bit / 192kHz

    Supported Operating Systems (Minimum Spec):  Windows 7 SP1, macOS 10.9 Mavericks, iOS 9.3, Android 5.0 Lollipop or above

    Supported Cloud Services:  Amazon Alexa, Amazon Music, Spotify Connect, TIDAL Connect, Deezer, Qobuz, HDTracks, HighResAudio, Murfie, JUKE, Napster, Slacker Radio, KKBox, Bugs

    Free Internet Radio:  TuneIn Radio, iHeartRadio, Calm Radio, Radio Paradise

    Control Integrations:  Crestron, Control4 (OS 3), Control4 (2.9.1), RTI, URC, Push, Lutron, ELAN, iPort

    Format Support / Sampling Rate:  PCM / up to 192KHz/24bit

    Solid state Integrated Amplifier of the Year - Sonic performance registers high scores across all genres of music. The Attessa is grain- and edge-free and doesn't shade o r spotlight particular frequency bands. Throughout, there is an untrammeled clarity to every note. more...

    Attessa is one rocking amp with high capabilities. Throughout this evaluation it was a fully formed performer and a glitch-free workhorse in my system, with no new-amp “teething” problems to speak of, especially commendable in a freshly minted design. more...

    Roksan Attessa Streaming Amplifier

    Roksan's Attessa SA partners its hi-res streaming talents with a range of physical connections, a clean, smart aesthetic and a Class AB power amp that keeps on giving. Yet the USP of this entry-level device is arguably its musical bent – there's a grown-up performance here that'll have you listening for hours. more...

    Roksan Attessa Streaming Amplifier Review

    The Attessa works brilliantly. What Roksan needed is an amp that delivers excellent performance in a way that is flexible and user friendly and the Attessa delivers this with a single well crafted, multi function knob on. So long as a moment’s care is taken in speaker choice, this is an extremely capable and consistently engaging amplifier that should win many new converts for the brand and it comes enthusiastically Recommended. more...