Devialet Expert 250 Pro Integrated Amplifier
Devialet Expert 250 Pro Integrated Amplifier
Stock expected end of April 2025
Built on Devialet's original inspiration—an amp that delivers high-end performance from a compact and beautiful unit—each model in the Expert Pro series is an all-in-one powerhouse: You get an exceptional stereo amp, network streamer, DAC, and phono stage.
As you move up the range these amplifiers increase in power output, which means each gives the same excellent sound quality but at higher volume levels. Consider the size and power demands of your speakers, as well as your room size, as you decide.
This model, Expert 250 Pro, gives you 250W per channel (into a 6Ω load).
Dual-mono & multi-amp capable
For a massive increase in performance, each unit can be set up to act as either a mono amplifier or a multi-amp component. This means with two Expert Pro amps, you can dedicate one amp to each speaker, instantly doubling your power and control. Or you can use each pair of speaker outputs to drive a different part of your speakers (bi-amp setup).
Packages are available for these configurations; check out the Expert 1000 Pro for the 250 pairing.
Devialet proprietary tech
- Analog Digital Hybrid (ADH): Allows the Expert Pro to pump out high-powered, class A control and depth without the need for huge heat sinks and a spacious case. Hence, high-end sound from a smaller unit.
- Speaker Active Matching (SAM): Tell your system which speakers you have (the database has 1,000+ models) and the amp will adjust the output to get more a deeper, more accurate bass response.
- Magic Wire DAC: This design synchronises parts of the DAC chain instead of performing them in series so that the signal chain is as short as possible, decreasing degradation of the delicate line-level output.
Devialet Expert Pro series features (all models)
- Well-made, low-latency and aesthetic remote control
- Coaxial, optical, USB and AES/EBU digital inputs
- Wi-Fi and ethernet streaming inputs
- Phono stage (MM or MC) and analog inputs
- Subwoofer output
- Airplay, Spotify Connect, UPnP and Roon Ready streaming
- Setup and control via Devialet app
Specification :
Range: Stereo
Exclusive Technologies: ADH®, SAM®, RAM®, EVO®, DAC Magic Wire®
Streaming Services: Roon Ready, UPnP, AirPlay®, Spotify Connect
Daisy Chaining: Up to 8 Units
Phono Stage: Advanced (MM / MC)
Pre-Amplified Output: Yes (Mono / Stereo)
Casing: Carved out from a single aluminum block
Side Plating: No
Power Supply: Universal 90-240 Vac – 50/60 Hz, Power cable provided adapted to the country, patented single-stage switching mode topology, high power level 600W continuous, 4000W peak, high output with Power Factor Correction (PFC)
Wi-Fi: 2.4 GHz / 5 GHz 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 digitization of analog sources)
Digital Coaxial Inputs: Up to 4 x RCA 75 Ω
Digital Optical Inputs: 1 x TOSLINK, up to 1 x Mini TOSLINK 3.5 mm
Supported Formats: Up to 32 bits / 192 kHz PCM (USB), up to 24 bits / 192 kHz PCM (Roon Ready, UPnP, AES/EBU, Coaxial), up to 24 bits / 96 kHz PCM (Optical), up to 1 bit / 3.072 MHz DSD64 (USB, Coaxial)
Analog Inputs: Up to 2 x RCA stereo, sensitivity adjustable via the configurator, advanced phono stage (MM / MC)
Speaker Output: 4 mm banana plugs, fork connectors or stripped cables, compatible with all speakers from 8 Ω to 2 Ω, short-circuit protection, active filtering available
Home Automation: Up to 1 x RS232 3.5 mm 115200 bauds (documentation available via the configurator)
Trigger: 3.5 mm trigger connector Trig In and Trig Out
Power: 2 x 250W RMS under 6 Ω
Distortion at Full Power: 0.0005% THD+N
Distortion at 10W / 6 Ω: 0.00025% THD+N
Signal-to-Noise Ratio: 130dB
Output Impedance: 0.001 Ω
Damping Factor: 8000
Bandwidth: DC-30 kHz @ -0.1 dB, DC-95 kHz @ -3 dB
Phase Rotation: 0.4° at 20 kHz, 1.8° at 40 kHz
Thermal Distortion: Below measurement threshold
Dimensions: 400mm x 400mm x 40mm
Weight: 9.7kg