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DEVIALET Expert 440 Pro Dual

$19,000.00 USD
DEVIALET Expert 440 Pro Dual

DEVIALET Expert 440 Pro Dual

2x440 Watts Under 6Ω

A comprehensive connectivity and a perfect control of your speakers.

The 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.


Devialet medias

Roon Ready




Spotify Connect

What's in the box

  • 2 Devialet Expert 220 Pro
  • 2 Expert Remote
  • 1 Digital coaxial link cable for audio
  • 1 Analog 3.5mm link cable for commands
  • 2 User Manuals
  • 2 Warranty booklets (2 years)
  • 2 SD cards
  • 2 Power cables
  • 2 Pairs of gloves
  • 2 Microfibre cloths




Exclusive technologies

ADHV2®, SAM®, EVO®, DAC Magic Wire®, RAM®

streaming services

Roon Ready | UPnP | Airplay® | Spotify Connect

Daisy chaining

Up to 8 units

Phono stage

Advanced (MM / MC)

Pre-amplified output

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


Dark chrome | Casing carved out from a single aluminium block

Side plating


Power Supply

Universal 90-240Vac – 50/60Hz
Power cable provided adapted to the country
Patented single stage switching mode topology
High power level: 600W continuous, 4000W peak


Length: 400mm | Width: 400mm | Height: 40mm


Master : 5.9Kg ; Companion : 5.4Kg


2.4GHz 802.11 b/g/n Wi-Fi
Supported formats: 16-bit/44.1 kHz PCM to 24-bit/192 kHz PCM


RJ45 100/1000 Mbps


USB Audio 2.0 asynchronous input/output
Supported formats:
16-bit/44.1 kHz PCM to 32-bit/192 kHz PCM
DSD64 1bit/2.822400MHz and 1bit/3.072000MH
Special characteristics:
Very low latency

Digital coaxial inputs

Supported formats:
16-bit/44.1 kHz PCM to 24-bit/192 kHz PCM
DSD64 1bit/2.822400MHz and 1bit/3.072000MHz

Digital optical inputs

Supported formats:
16-bit/44.1 kHz PCM to 24-bit/192 kHz PCM

Supported formats

Up to 32bits / 192kHz PCM (USB)
Up to 24bits / 192kHz PCM (Roon Ready, 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, stripped cables or fork connectors
Adjustable from 30 WRMS to 440 WRMS via the configurator
Compatible with all speakers, from 1Ω to 16Ω
Short-circuit protection
Active filtering available

Home automation

Up to 1x RS232 3.5mm 115200 bauds (documentation available via the configurator)


3.5mm mini-jack trigger connector


2x440 Watts RMS under 6Ω

Distortion at full power

0.00025% THD+N

0,0001% (10W / 6Ω)

Distortion at 10w

0.0001% THD+N

Distortion at 10V

0.00025% THD+N

Signal-to-noise ratio


Output impedance


Damping factor



DC-30kHz @ -0.1dB
DC-95kHz @ -3dB

Phase rotation

0.2° at 20kHz
0.9° at 40kHz

Thermal distorsion

Below measurement threshold