Devialet Expert 440 Pro Dual Amplifier

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The prowess of Dual-Mono amplification finally accessible.

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 Expert 440 Pro is a dual-mono amplifier powered by two 440W channels at 6Ω. With half the distortion of stereo, this configuration gives an enhanced power supply to each channel alongside many connectors so even with demanding acoustic structures, the audio will be flawless.
Devialet's innovations reinvent each step of the acoustic signal path for unprecedented levels of performance. The perfect audiophile playback that is completely transparent offers a rare sensational experience. HD audio can be streamed (wired or wireless) via AIR, DAC Magic Wire or RAM Phono stage. Free, regular updates are available using the EVO platform.

More Information
Manufacturer Link Devialet Expert 440 Pro Dual Amplifier
Manufacturer Devialet
Free warranty 5 years
Delivery Charge Free
Delivery Time Normally 1 - 5 Working Days (Covid-19 and Brexit Delays Possible, contact us for more information)
Card Surcharge No
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- Dual Mono Range
- Power: 2 x 440Wrms, 6Ω
- Signal/Noise Ratio: 133dB
- THD+N: 130W/6Ω, 0.00025%
- THD: 10W/6Ω, 0.0001%
- Output Impedance: 0.001Ω
- Damping Factor: 8000
- Bandwidth: DC -30/95kHz (-0.1/3dB)
- Phase: 0.2/0.9° @20/40kHz


- Ethernet In: RJ45
- USB: 2.0 asynchronous in/out
- Special features: Very low latency
- Bi-directionality for digitisation
- Optical Connector: S/PDIF TOSLINK
- Mini-Jack: 3.5mm S/PDIF opt+ RS232
- RS232 protocol up to 115200 bauds
- RCA 3 & 4: Selected Via configuration
- Line-in stereo analogue input


Line/Analogue Stereo Phono
- A/D Converter: TI PCM4202 
- Line In: voltages up to +/- 10V
- Analog: voltages up to +/- 100mV
- Advanced conversion stage
- Digital In: 1 or 2 Coax S/PDIF


For Devialet AIR
- RJ45 10/100 Mbps Ethernet in
- 2.4GHz 802.11 b/g/n Wi-Fi in


Speaker Out
- 4mm, stripped cables + fork plugs
- 30-440W RMS via configurator
- Compatible: from 1Ω to 16Ω
- Short-circuit protection
- Active filtering available
- Output impedance: 0.001Ω


- Synchronisation: Up to 8 units
- Dark chrome hand polished casing
- Carved from Single Aluminium block
- Dimensions (LWH): 400 x 400 x 40mm
- Weight: 5.9Kg + 5.4Kg

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