Devialet Expert 440 Pro Dual

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

Weight
Master : 5.9Kg ; Companion : 5.4Kg

Power
2×440 Watts RMS under 6Ω

Distortion at full power
0.00025% THD+N

Distortion at full power
0,0001% (10W / 6Ω)

Distortion at 10w
0.0001% THD+N

Distortion at 10V
0,00025% THD+N

Signal-to-noise ratio
133dB

Output impedance
0.001Ω

Damping factor
8000

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

Phase rotation
0.2° at 20kHz
0.9° at 40kHz

Thermal distorsion
Below measurement threshold

Wi-fi
2.4GHz / 5GHz 802.11ac, compatible with 802.11a/b/g/n

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
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 (AIR®, UPnP, 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
Standard phono stage (MM / MC)

Speaker output
4mm banana plugs, fork connectors or stripped cables
Compatible with all speakers from 8Ω to 2ΩShort-circuit protection
Active filtering available

Home automation
Up to 1x RS232 3.5mm 115200 bauds (documentation available via the Configurator)

Trigger
3.5mm trigger connector Trig In and Trig Out

• 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 (5 years)
• 2 SD cards
• 2 Power cables
• 2 Pairs of gloves
• 2 Microfibre cloths

What’s the warranty on Expert Pro?
Expert Pro systems come with a 5-year warranty. Effective from date of purchase.

Why is the output power in dual-mono mode not always twice the output power of the stereo mode?
The ideal situation is to have no limitation in terms of thermal dissipation and current availability. This is the case with the 250 Pro where the output power in dual-mono is then 4 times higher than the output power in stereo (the output power P goes from 250W to 1000W as the output voltage U is multiplied by 2 in dual-mono and P=U2/R). With the 220 Pro, the casing is limiting the thermal dissipation in dual-mono mode and therefore the output power is only multiplied by 2. With the 140 Pro, the class D board is limiting the current availability and therefore the output power is only multiplied by 1.5.