891 vs Devialet Astra
The Astra's power @ 8ω is 150W against the 891's 100W, its signal-to-noise 117 dB against 125 dB, its thd 0.001% against 0.000%, and its output impedance 0.004Ω against 50Ω.
AI-generated product photo — not official manufacturer imagery.
AmplifiersIntegrated AmplifiersDACsStreamers
About the 891
The MOON by Simaudio 891 is a reference-level network player, DAC, configurable MM/MC phono stage, and analog preamplifier in one chassis. It uses Simaudio’s MiND 2 network platform, MDE-3 digital engine, M-RAY2 volume control, and MOON damping base. It supports high-resolution PCM, MQA, and DSD playback, with streaming via Roon Ready, AirPlay, Spotify Connect, TIDAL Connect, Qobuz Connect, Bluetooth, DLNA/UPnP, and internet radio. Connectivity includes AES/EBU, coaxial and optical S/PDIF, HDMI ARC, USB Audio, USB host storage, Ethernet/network connections, balanced and single-ended analog inputs and outputs, and provision for an optional external power supply. The product is manufactured in Canada. Specifications vary slightly between Simaudio’s published manual and later datasheet revisions; the figures below identify those differences where applicable.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 100W @ 8Ω
Digital Audio
DAC capabilities and digital audio processing
- DAC Chip
- ESS Sabre DAC
Analog Output
Analog signal output specifications
- THD
- 0.000%
- SNR
- 125 dB
- Output Impedance
- 50Ω
Connectivity
Input and output connections
- Bluetooth
- Yes
- Wi-Fi
- Yes
- Digital Inputs
- USB, Optical, Coaxial, Ethernet
- Analog Inputs
- RCA, XLR
Streaming Services
Supported streaming platforms and protocols
- AirPlay
- No
- Chromecast
- No
- Roon Ready
- No
- Spotify Connect
- Yes
- TIDAL Connect
- Yes
- Other Services
- TIDAL, Qobuz, Spotify
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 445.5 × 107.95 × 362.05 mm (W × H × D)
Key Specifications
Power: 100W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions