Devialet Expert 440 Pro Dual

R340,990.00 Incl. VAT

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440 is the mid-level Dual-Mono configuration in the Devialet Expert Pro range.

Expert 440 Pro combines two Expert 220 Pro units and offers up to 16 physical inputs and 440W of power per channel, for a Dual-Mono set-up without any compromise.

So why is the output power not always double? The ideal situation is to have no limitation in terms of thermal dissipation and current availability, however with the 220 Pro, the casing is limited by thermal dissipation in dual-mono mode and therefore the output power is only multiplied by 2.


The world’s most advanced audiophile system, Devialet Expert Pro is meant for music lovers in search of a refined and emotional listening experience.

Designed to replace traditional Hi-Fi systems, Expert Pro delivers all the core elements of playback – preamp, amp, DAC, streamer, phono stage – in a single and ultra-compact unit.

By rethinking sound reproduction at every turn, Devialet engineers have been able to achieve the best performance ever measured, at all power levels. With a precise and natural attack, explosive dynamics, naked silence and beautifully true timbre, the experience is breathtaking.

Entirely configurable and upgradable, Expert Pro reveals your music’s full potential, whatever the source or speakers.


Expert Pro can be purchased in stereo, dual-mono or multi-amplification configurations up to x8 units combined allowing you to scale your system according to your individual needs.

With infinite configurability and performance that’s constantly pushing beyond, Expert Pro’s unique fractal architecture meets your every requirement.

Critically acclaimed

Breakthrough after breakthrough, Expert Pro technologies continue to redefine audio industry standards. Ten years of research and development, 100+ patents and 60 awards later, Expert Pro remains the most critically acclaimed audio system of all time.


ADH® hybrid amplification delivering the musicality of analog and the power of digital, SAM® real-time speaker active matching, on-the-fly phono stage configuration with RAM®, Magic Wire® DAC to eliminate thermal distortion, free and regular upgrades through the EVO® platform.

Exclusively developed by Devialet engineers, these technologies radically enhance every aspect of the Expert Pro architecture. Plus with Core Infinity the new intelligent core of Expert Pro streaming your music without compromising sound quality is both simple and accessible.


Roon and Devialet are thrilled to announce that all Expert Pro systems have been awarded Roon Ready certification, bringing the best of Roon’s features to the Expert Pro range.

Exceptional remote control

An exceptional piece of technology and craftsmanship, the Expert Pro Remote lets you control your system with extreme precision from the palm of your hand.

Operated via ultra-low latency, omnidirectional radio link, volume control has never been as refined and reactive.


Range: Dual-Mono

Technologies: ADHV2®, SAM®, AIR®, EVO®, DAC Magic Wire®, RAM®

Streaming Services: UPnP, Airplay®, Spotify Connect

Daisy Chaining: Up to x8 units

Phono Stage: Advanced MM/MC

Pre-Amplified Output: Yes Mono / Stereo

Casing: Hand-polished, carved from a single aluminium block, 100% pure copper bottom plate for optimal thermal dissipation

Side Panel: Dark Chrome

Weight: 5.9Kg Master, 5.4Kg Companion

Power: 2x 440WRMS under 6ω

Distortion At Full Power: 0.00025% THD+N

Distortion at 10W: 0.0001% THD+N

Signal-To-Noise: 133dB

Output Impedance: 0.001ω

Damping Factor: 8000

Bandwidth: DC-30Hz @-0.1dB, DC-95Hz @ -3dB

Phase Rotation: 0.2° 20kHz, 0.9° 40kHz

Intelligence: 3x SHARC 400MHz DSP, 1x 16MHz RISC processor, 4x 40MHz RISC processor, 1x 64MHz RISC processor

Thermal Distortion: Below measurement threshold

Wi-Fi: 2.4GHz 802.11 b/g/n Wi-Fi input for the Devialet AIR universal streamer.

Ethernet: RJ45 100/1000 Mbps

USB: USB Audio 2.0 Asynchronous, Very low latency, Bi-directionality for digitisation of the analog sources

Digital Coaxial Inputs: Up to 6x RCA 75ω

Digital Optical Inputs: 1x TOSLINK, up to 1x miniTOSLINK 3.5mm

Supported Formats: Up to 32bits / 192kHz PCM USB, up to 24bits / 192kHz PCM AIR®, UPnP, AES/EBU, Coaxial, up to 24bits / 96kHz PCM Optical, up to 1bit / 3.072000MHz DSD64 USB, Coaxial

Analog Inputs: Up to 4x RCA stereo, sensitivity adjustable via the Configurator, advanced phono stage MM / MC

Speaker Output: 4mm banana plugs, fork connectors or stripped cables, adjustable from 30 WRMS to 440 WRMS via the configurator, compatible with all speakers from 1Ω to 16Ω, short-circuit protection, active filtering available, output impedance 0.001Ω

Home Automation: Up to 1x RS232 3.5mm 115200 bauds documentation available via the Configurator

Trigger: 3.5mm mini-jack trigger connector


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