About the Expert 250 Pro
The Devialet Expert 250 Pro is designed to replace traditional Hi-Fi systems by integrating all core playback elements—preamp, amplifier, DAC, streamer, and advanced MM/MC phono stage—into one compact and elegant unit. It features a hand-polished casing carved from a single aluminum block with a 100% pure copper bottom plate for optimal thermal dissipation. The amplifier delivers 2 x 250 Watts RMS under 6Ω with ultra-low distortion (0.0005% THD+N at full power) and a high signal-to-noise ratio of 130 dB. It supports a wide range of digital inputs including USB Audio 2.0 asynchronous, 4x RCA S/PDIF, optical TOSLINK, and mini TOSLINK, as well as analog inputs with adjustable sensitivity. Streaming services supported include Roon Ready, UPnP, AirPlay®, and Spotify Connect. The system is fully configurable and upgradable, with daisy chaining capability for up to 8 units. It incorporates Devialet's exclusive technologies such as ADH®, SAM®, RAM®, AIR®, EVO®, DAC Magic Wire®, and Core Infinity, ensuring precise, natural attack, explosive dynamics, and true timbre. Dimensions are 400 x 400 x 40 mm, and it weighs approximately 9.7 kg.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 250W @ 8Ω
- Damping Factor
- >1000
- Minimum Impedance
- 6Ω
- Input Impedance
- 100000Ω
- Max Input Voltage
- 10.0V RMS
Analog Output
Analog signal output specifications
- THD
- 0.001%
- SNR
- 130 dB
- Output Voltage
- 2.0V RMS
- Output Impedance
- 0.001Ω
- Max Output Voltage
- 10.0V RMS
Phono Preamplifier
Phono stage specifications
- Adjustable Loading
- Yes
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- Yes
- Ethernet
- Yes
- Digital Inputs
- 4x RCA S/PDIF, 1x Optical TOSLINK, 1x mini TOSLINK 3.5mm, 1x USB Audio 2.0 Asynchronous
- Analog Inputs
- 2x RCA stereo with adjustable sensitivity
Streaming Services
Supported streaming platforms and protocols
- AirPlay
- v1
- Roon Ready
- Yes
- Spotify Connect
- Yes
- Other Services
- UPnP
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 400 × 40 × 400 mm (W × H × D)
- Weight
- 9.7 kg (21 lbs)
- Available Colors
- Hand-polished aluminum
Key Specifications
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions