Roksan Attessa Streaming Amplifier

Attessa Streaming Amplifier combines a BluOS network player, a DAC and Roksan Euphoria Class A/B amplification. Its 80-watt-per-channel output into 8 ohms lets a pair of passive speakers become a connected stereo system without adding a separate streamer.

BluOS provides access to music services, network libraries and multiroom playback up to 24-bit/192 kHz. Roon Ready support and AirPlay 2 offer further ways to play music. Analogue inputs, digital inputs and a moving-magnet phono stage also accommodate conventional sources and a turntable.

The front control dial gives haptic feedback when adjusting volume or selecting an input. MaestroUnite handles configuration, firmware updates and coordination with the Attessa CD Transport, while the supplied IR remote and headphone socket support straightforward daily listening.

Technical specifications

• 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 – No signal sense; A2 – With signal sense & used for AV Mode; MM (Phono) – RIAA (equalized)
• Outputs: 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 aluminum 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)): 17" (432 mm) x 3" (76 mm) x 14 11/16" (373 mm)
• Dimensions (Excluding Encoder and Connections (W x H x D)): 17" (432 mm) x 3" (76 mm) x 13 5/8" (346 mm)
• Weight: 23 lb (10.48 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

Manufacturer information: Roksan.