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Expert 220 PRO

Inventors of the world’s best amplification technology - ADH® - we are constantly working towards the ultimate perfection: zero distortion. In this passionate quest, we thoroughly reviewed the ...

Brand: Devialet
Product Types:      


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Inventors of the world’s best amplification technology - ADH® - we are constantly working towards the ultimate perfection: zero distortion. In this passionate quest, we thoroughly reviewed the electronics of our products to develop the new Expert Pro line.

The Expert Pro 220 is designed to meet the demanding needs of audiophiles with full connectivity and the world's most advanced phono stage.

It loads all Devialet exclusive technologies as well as major innovations developed for the new Expert Pro range.

Able to be linked to a second device to create an Expert 440 Pro, the Expert 220 Pro is the best solution to develop towards the extreme performance of the Dual-Mono configuration.

Stereo · 2x220Watts 6Ω
THD+N : 0,0005% (220W / 6Ω)
THD : 0,00025% (10W / 6Ω)
Signal-to-Noise ratio: 130dB
Advanced Phono stage
New ADH Intelligence®

Expert Pro : The world’s best performance, at all power levels.



Power : 2x220WRMS 6Ω
Signal-to-Noise ratio : 130dB
THD - 130W/6Ω : 0,0005% / -106dB
THD - 10W/6Ω : 0,00025% / -112dB
Output impedance : 0,001Ω
Damping factor : 8000
Thermal distorsion : Below measurement threshold
Technologies : ADHV2®, SAM®, AIR®, EVO®, DAC Magic Wire®, RAM®


Type of supported cartridges: MM/MC
MM sensitivity from 1mVRMS to 15mVRMS
MC sensitivity from 100 μVRMS to 5000 μVRMS
256 combinations for the resistive/capacitive loading of the cartridge
Stereo/mono/left/right mixing
13 equalisation curves available
Specific menu for dynamic adjustment of all these settings


Patented Magic Wire Digital / Analogue Converter, D/A T.I. PCM1792
Unique high-precision MasterClock with very low jitter: 2ps rms
Conversion of all inputs into 24-bit/192 kHz
Built-in DSD / PCM conversion
SAM profile via configurator allowing the precise adaptation of the sound signal to the specifications of your speakers
Available active filtering on all analogue outputs via configurator
Volume control in increments of 0.5 dB
Volume adjustment range: -97.5 dB to +30.0 dB
Bypass/pass-thru mode available input by input
Balance adjustment
Tone control: bass +/-18 dB, treble +/-18 dB with variable frequency cut-off via configurator


Finish : Chassis carved out of a single aluminium block
Color : Dark chrome finish
Dimensions : Length: 383mm | Width: 383mm | Height: 40mm
Weight : 5,9Kg
Installation : Horizontal or vertical installation with automatic tilt detection
Synchronisation : Up to 8 units


1 Devialet Expert 220 Pro
1 Power cable
1 User Manual
1 Warranty booklet (5 years)
1 Microfibre cloth
1 Pair of gloves
1 SD card
1 Remote Expert (3 AAA batteries LR03 1,5V provided)

Devialet Expert Pro in More Depth

The ultimate audiophile system

Expert Pro is the ultimate audiophile system, for the most discerning of music lovers.

Well above and beyond an ordinary amplifier, Devialet reinvents and combines for the first time all of the key components of expert playback (preamplifier, amplifier, DAC, streamer, phono stage) in a single and extremely thin slab.

Your Expert Pro is unlike any other: set each of the thousands of possible configurations for a unique musical experience.

Regardless of the source. Regardless of the speakers.

Unmatched performance

Devialet technologies reinvent each step of the musical signal chain for never before achieved levels of performance.

Pure sound. Explosive dynamics. Absolute silence. Perfect audiophile playback, completely transparent. A rare emotional experience.

The performance delivered by Expert Pro is the best ever measured, at all power levels :

THD+noise (harmonic distortion) at full power under 6Ω

THD at 10W/6Ω

Output impedance

Signal-to-noise ratio

133 dB
Devialet inventions

ADH® analogue-digital hybrid amplification, SAM® system for real-time adaptation of the signal transmitted to the speakers, free, regular updates using the EVO® platform, HD audio stream (wired or wireless) via AIR®, DAC Magic Wire®, RAM® Phono stage... The Expert is Pro system an engineering gem.

All Expert Pro systems incorporate all of Devialet's audiophile technologies. 107 patents. 58 awards. The most award-winning audio system of all time.

In addition to these technologies exclusive to Devialet, Expert Pro benefits from many major innovations developed for this new line :

New ADH Intelligence®
New Magic Wire® DAC
New Class A Amplifier
New Class D Amplifier
New Power Supply
New Thermal Management

Speaker Active Matching SAM®

For the first time, your speakers operate at peak performance levels while being perfectly protected.

No speaker models are exactly the same. Expert Pro sends a signal that is precisely adapted to their acoustical architecture. Displacement, driver excursion, acceleration, speed... with the SAM® technology, the Expert Pro system has perfect knowledge of how your speakers behave.


The French audio company Devialet was formed in 2007 and launched its first product the D-Premier to critical acclaim in 2009. Since those early days the company has continued to expand and has launched a range of cutting edge products in the Devialet Expert Pro and Phantom collections. At the heart of the technology is a hybrid amplifier that uses Class A and Class D to provide a powerful sound from a compact unit. Not only does the Devialet range of products look stunning, but they have the audio capabilities to back up their good looks.

Devialet Expert Pro – The Ultimate System

The Devialet Expert Pro range is far superior to your ordinary amplifier. The popular Devialet Hi-Fi System includes cutting edge streaming facilities, a phono stage, DAC and integrated amplifier with a number of digital & analogue inputs. The unique website configurator allows full adjustment for individual cartridges & loudspeakers with dozens of cartridges plus hundreds of speaker models pre-specified.  So for audiophiles there are literally thousands of configurations to help you dial in your sound and create the ultimate listening experience.

Devialet Phantom – Implosive Sound Centre

Developed under a cloak of secrecy the Devialet Phantom All-in-One Music System delivers an experience like no other. Phantom delivers precision, power and clarity unlike any other system you’ve heard. With up to 4,500 watts of power per unit, a maximum volume equivalent to a live rock concert and the impact of truly deep bass, a single Devialet Phantom is something extra special that is hard to beat for the price – two are simply staggering.