

The Devialet Astra Dual Mono Stack combines two Astra units stacked on top of each other, one per stereo channel. Each unit operates in mono and is dedicated to a single channel, doubling the available power and expanding the dynamic range. The vertical arrangement concentrates both amplifiers into a single footprint and frees up space around the system.

Each Astra delivers 2x300 W RMS into 4 ohms and 2x150 W RMS into 8 ohms; in Dual Mono mode, the two units combine their power to reach 2x600 W. Next-generation ADH and SAM technologies maintain a distortion rate of 0.001% and a signal-to-noise ratio of -117 dB. The damping factor reaches 2,000, and RAM technology refines bass reproduction.

Network connectivity is provided by Wi-Fi 6, Ethernet, and Bluetooth 5.3. Astra supports AirPlay, Google Cast, Spotify Connect, Tidal Connect, Qobuz Connect, Roon Ready, and UPnP. Inputs include coaxial, TOSLINK optical, analog RCA, and an MM/MC phono stage with 13 EQ curves. The speaker output supports loads ranging from 8 to 2 ohms.

Each chassis is machined from a solid block of aluminum, anodized, laser-engraved, brushed, and shot-blasted, and measures 38.6 cm on each side by 4.7 cm in height. The Light Bronze finish adorns both units in the stack. The system is controlled via the Devialet app and the USB-C rechargeable remote control, with volume adjustment in 1 dB increments.
Data sheet
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