Devialet Expert 250 Pro Audiophile Integrated Stereo Amplifier
The Devialet Expert 250 Pro has been beautifully crafted to deliver extreme performance and pushes the limits of integrated power amplification thanks Devialet's unique Hybrid amplifier technology combined with an exclusive hand-polished casing and a 100% pure copper bottom plate. This sleek, low-profile amplifier generates an impressive 250 watts per channel, so you can play loud and sublimely accurate sound from your favourite tracks. Proprietary technology, clever amplifier design, and flexible user interface software make it a unique centerpiece for a top-notch two-channel Hi-Fi setup.
Hybrid amplifier technology
ADH® combines Class A and Class D amplification technology for distortion-free performance at all power levels. Signal passes through a Class A voltage amplifier to reduce distortion, then on to a Class D current amplifier designed for high gain. Devialet's engineers also made sure that heat dissipates quickly, so that you can listen louder and for longer.
A score of leading-edge technologies
ADH® hybrid amplification delivering the musicality of analogue and the power of digital, SAM® real-time speaker active matching, on-the-fly phono stage configuration with RAM®, Magic Wire® DAC to eliminate thermal distortion, free and regular upgrades through the EVO® platform…
Exclusively developed by Devialet engineers, these technologies radically enhance every aspect of Expert Pro’s architecture. And with Core Infinity, Expert Pro’s new intelligent core, streaming your music without compromising sound quality is both simple and accessible.
Infinitely & precisely configurable
Experience the ultimate audiophile tool. Expert Pro online Configurator lets you tailor your system to your slightest preference. Choose between up to three different functions per connector (digital or analogue input or output). Configure your phono stage with absolute precision. Taken to new extremes, Expert Pro Configurator guarantees a seamless fit with your sources and speakers.
Major technological breakthroughs
Expert Pro technologies continue to redefine audio industry standards. Ten years of research and development, 160+ patents and 90 awards later, Expert Pro remains the most critically acclaimed audio system of all time.
Core Infinity, Expert Pro’s new intelligent core
Core Infinity opens Expert Pro to a whole new world of features designed to heighten current and future streaming capabilities. Complete with the latest Devialet OS operating system, Core Infinity brings a range streaming protocols to Expert Pro, including Roon with Devialet AIR®, UPnP renderers, AirPlay®, Spotify Connect and more to come.
In wireless mode and Ethernet, discover a new world, open and future-proof.
Absolute fidelity, right down to your speakers.
A game-changing innovation, SAM® enables Expert 250 Pro to produce a signal ideally suited to your exact speaker model, thanks to advanced mathematical modelling of their acoustic architecture determined by SAM Lab. With perfect temporal alignment and greater extension into low-end frequencies, the sound stage is exquisite. Revolutionary, SAM® technology ensures you get the best from your speakers while providing permanent protection from overload.
800+ speaker models are now SAM-ready, with new models being added regularly.
One of A kind, however you choose to listen
However you want to connect to Expert 250 Pro, rediscover your entire music library, without exception or compromise. Coaxial or optical digital inputs, USB, AES/EBU, analogue phono and line inputs, Ethernet, dual band Wi-Fi… Expert Pro systems are built to meet your every preference and need, effortlessly.
Devialet Expert 250 Pro Highlights:
250 watts x 2 into 6 ohms (20-20,000 Hz) at <0.0005% THD
efficient hybrid amplifier offers the best of Class A and Class D technology
signal to noise ratio: 130dB
built-in Wi-Fi creates a strong dual-band wireless connection
stream music via Spotify® Connect, Apple® AirPlay® and UPnP
online configurator tool with manufacturer-specific speaker profiles allows customised settings
can be configured as a monoblock amp
remote included
Connections:
Type-B USB input for connecting a computer
Ethernet port for connecting to a local network
Toslink optical input for connecting a digital source
two digital coaxial inputs (digital 1 & 2)
RCA stereo analog line input
phono stage input for connecting a turntable with moving magnet or moving coil cartridge
doubles as an RCA stereo analog line input
each input can also function as a digital coaxial input (digital 3 & 4)
balanced AES/EBU digital XLR input
SD card slot for configuration and setup (card included)
mini optical input is reconfigurable as an RS-232 port for remote triggering
one pair of binding post outputs for connecting speakers via bare wire or banana plug
PERFORMANCE |
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POWER |
2x250 Watts RMS under 6Ω |
DISTORTION AT FULL POWER |
0.0005% THD+N |
DISTORTION AT 10W |
0.00025% THD+N |
SIGNAL-TO-NOISE RATIO |
130dB |
OUTPUT IMPEDANCE |
0.001Ω |
DAMPING FACTOR |
8000 |
BANDWIDTH |
DC-30kHz @ -0.1dB |
PHASE ROTATION |
0.4° at 20kHz |
THERMAL DISTORSION |
Below measurement threshold |
INTELLIGENCE |
1x QUAD-CORE 1GHz CPU |
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RANGE |
Stereo |
EXCLUSIVE TECHNOLOGIES |
ADH®, SAM®, RAM®, AIR®, EVO®, DAC Magic Wire® |
STREAMING SERVICES |
UPnP Airplay® Spotify Connect Roon Ready |
DAISY CHAINING |
Up to 8 units |
PHONO STAGE |
Standard (MM / MC) |
PRE-AMPLIFIED OUTPUT |
Optional (on order) |
CASING |
Carved out from a single aluminium block |
SIDE PLATING |
Dark chrome |
DIMENSIONS |
Width: 400mm Depth: 400mm Height: 40mm |
WEIGHT |
9.70Kg |
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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 |
DIGITAL COAXIAL INPUTS |
Up to 4x RCA 75Ω |
DIGITAL OPTICAL INPUTS |
1x TOSLINK |
SUPPORTED FORMATS |
Up to 32bits / 192kHz PCM (USB) |
ANALOGUE INPUTS |
Up to 2 x RCA stereo |
SPEAKER OUTPUT |
4mm banana plugs, fork connectors or stripped cables |
HOME AUTOMATION |
Up to 1x RS232 3.5mm 115200 bauds (documentation available via the Configurator) |
TRIGGER |
3.5mm trigger connector |