Roksan Attessa Streaming Amplifier User Guide (+ PDF)

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iOS, iPadOS, macOS and tvOS devices only

Dimensions & Material
Dimensions (Inc. Connect & Encoder)	H76 x W432 x D383 mm
Dimensions (Exc. Connect & Encoder)	H76 x W432 x D346 mm
Weight	10.2 Kg
Construction	Formed plated steel and bespoke machined anodised aluminium front panel
Power Amplifier
Power Output (8 Ohms)	80Wrms Both Channels Driven, Nominal (THD+N <1%)
Power Output (4 Ohms)	130Wrms Both Channels Driven, Nominal (THD+N <1%)
THD+N	<0.02% (1KHz, 2 channels, 1W@8 Ohms, A-Weighted)
Amplifier Type	Class AB
Gain	29dB
Channel Separation	>75dB @10kHz
Channel Matching	<0.5dB
Signal to Noise Ratio	>80dBa 1W/8R, >98dBa 75W/8R
Frequency Response	5Hz to 50KHz (-3dB)
Mains Transformer Rating	400VA
Pre- Amplifier
Volume Channel Matching	<0.25dB
THD+N	0.002% (1KHz, 2Vrms at Pre-Out)
Signal to Noise Ratio	>104dB (unweighted)
RIAA (Phono)	47k/56p loading; gain settings suitable for 12mV, 6mV,3mV output cartridges
Bluetooth®
Bluetooth® Type	A2DP Audio profile
Bluetooth® Codecs	SBC, aptX™, AAC
Bluetooth® Range	15m (typical)

Digital Inputs
Digital Coax Input	up to 24bit/192kHz PCM
Digital Optical Input	up to 24bit/96kHz PCM
DAC
Format Support	PCM
Sampling Rate	up to 192KHz/24bit
THD+N	0.001% (1KHz, 2Vrms at Pre-Out)
Signal to Noise Ratio	106dB (A-Weighted)
BluOS
Audio Formats	MP3, AAC, WMA, OGG, WMA-L, ALAC, OPUS
Hi-Res Audio Formats	MQA, FLAC, WAV, AIFF Supports converted DSD playback via the BluOS desktop app
Sampling Rate	Up to 32 bit / 192kHz
Supported Operating Systems (BluOS Controller App)	Desktop (Minimum Spec) Windows 7 SP1 or above / macOS 10.9 Mavericks or above Mobile (Minimum Spec) iOS 9.3 or above / Android 5.0 Lollipop or above / Fire OS 5.0 or above
Supported Cloud Services	Amazon Alexa, Amazon Music, Spotify, TIDAL, 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
Power Supply
Mains input	IEC Connector on rear panel Mains transformer will self-select for either 100-130 VAC 50/60Hz 210-240 VAC 50/60Hz (Operational down to 85VAC with reduced output power)