The Expert 140 Pro is a streaming integrated amplifier by Devialet that delivers 140 watts x 2 channels into 6 ohms. It was released in September 2016. It is a 2-channel design using a ADH (Analog Digital Hybrid) output stage. A minimum impedance of 2 ohms makes it compatible with a wide range of loudspeakers. It has a built-in DAC, so you can play digital sources directly with no separate DAC unit needed. It also has a phono input, so a turntable can connect straight to it. The Devialet Expert 140 Pro has an MSRP of $6,500.
Devialet later replaced the Devialet Expert 140 Pro with the Devialet Astra. Follow the link to read our in-depth comparison of these speakers:
Compare Devialet Expert 140 Pro vs Devialet Astra
There are 3 Devialet amplifiers in our database. Below you can see the main specs of these amps.
Devialet Integrated Amplifier Series
Performance Specs
One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements. The Devialet Expert 140 Pro is rated at 105 watts RMS into 8-ohms. Devialet provides this wattage at a THD (Total Harmonic Distortion) of 0.0005% which is an important indicator of distortion at the given values (lower THD is better).
Here are the main highlights of its performance specs:
- 105 watts into 8-ohms (20 Hz-20 kHz) at 0.0005%
- 140 watts into 6-ohms
- 130dB Signal to Noise Ratio
How loud will 105 watts actually play in your room? →
Wiring more than one pair of speakers to it? Check the load first →
Which speakers suit the Devialet Expert 140 Pro?
105 W into 8 ohms, rated down to 2 ohms.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
Need more power?
Devialet Expert 140 Pro is rated at 105 watts into 8 ohms, which puts it in our 91 to 120 watts band. The next band up is 121 to 180 watts, which is worth about 1.5dB more output. That is a real difference in headroom on peaks, and a modest one in how loud the system plays - power and loudness are not the same thing.
Before buying watts, check what your speakers actually need: the amp and speaker matcher works it out from their sensitivity, impedance and your room. Plenty of systems are better served by the 61 to 90 watts band and better speakers.
When pairing the Devialet Expert 140 Pro with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
What size of room is the Devialet Expert 140 Pro Amplifier good for?
An essential deciding factor is the size of the room in which you intend to employ the Devialet Expert 140 Pro amplifier. Here, taking into account its maximum power parameters, we analyzed its applicability to various size environments:
| Listening Environment |
Suitability |
| Near-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Average |
| Very Large Room | Poor |
Inputs and Outputs
Besides the performance specs of the Devialet Expert 140 Pro, the next important feature set that you have to evaluate is the input and output selections that it offers.
Devialet Expert 140 Pro has total of 1 Analog inputs including 1 Phono Input (MM,MC).
Devialet Expert 140 Pro Back View (Click the image for the larger version)
Inputs
- Total Number of Analog Inputs: 1
- Phono Input
- 1 Optical Digital Input
- 2 Coaxial Digital Input
Outputs
Bluetooth Connectivity
Devialet Expert 140 Pro doesn't have bluetooth connectivity feature. In order to stream your music via bluetooth, the easiest way is to connect an external bluetooth receiver to your Devialet Expert 140 Pro. Two bluetooth receivers that we recommend are the
iFi Zen Blue V2 and the
Audioengine B1.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
Phono Input
Devialet Expert 140 Pro features one Phono Input which is compatible with
MM (Moving Magnet) type of phono cartridges, you can connect your turntable with MM cartridges directly to this amp without the need for a phono preamp. If you are using an MC cartridge on your turntable, you need to use a phono preamp that has MC phono stage such as the
Cambridge Duo or the
iFi ZEN Phono.
DAC and Digital Music
The Devialet Expert 140 Pro's built-in DAC allows the connection of digital sources directly, eliminating the need for an external DAC.
Devialet Expert 140 Pro Handheld Remote
Devialet Expert 140 Pro Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓105 watts per channel into 8 ohms.
- ✓Rated down to 2 ohms, so even a speaker with a punishing impedance dip is within its brief.
- ✓Signal-to-noise ratio of 130dB, so the amplifier itself should be inaudible between tracks.
- ✓Distortion is specified at 0.0005%, an order of magnitude below what is generally held to be audible.
- ✓Built-in DAC handling 32-bit / 192, so a TV, computer or streamer can connect digitally with nothing in between.
- ✓Digital inputs cover 1 optical and 2 coaxial.
- ✓Phono stage built in (MM,MC), for moving-magnet and moving-coil cartridges alike.
- ✓Streams over the network without a separate streamer: Roon.
- ✓5-year parts warranty, longer than most of the market.
- ✓Detachable mains lead (IEC 3-prong).
- ✗Only 1 analogue input, so a second source means unplugging the first.
Devialet Expert 140 Pro External Dimensions and Weight
Devialet Expert 140 Pro has external dimensions of (H x W x D) 1-9/16inch x 15-1/16inch x 15-5/8inch (40.0mm x 383.0mm x 397.0mm ). The unit weighs
5.66 kg (12.5 lbs).
Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited.
The base area of the Devialet Expert 140 Pro is approximately 1520.5cm2 / 235.7inch2.
- Width: 383.0mm (15-1/16")
- Height: 40.0mm (1-9/16")
- Depth: 397.0mm (15-5/8")
- Weight: 5.66 kg (12.5 lbs)
- Base Surface Area: ~1520.5cm2 / 235.7inch2
- Volume: ~6.1 liter / 1.6 gallon
Devialet Expert 140 Pro - Top View
Available colors
Devialet Expert 140 Pro is available in Dark Chrome color options.
What's in the Box of Devialet Expert 140 Pro?
Here are the items that are included inside the box of Expert 140 Pro:
- Integrated amplifier
- AC power cord
- Remote control
- Three AAA batteries
- SD-card
- Pair of gloves
- Cleaning cloth
- User Manual
- Warranty Booklet
Official Product Page
Official manufacturer's product page for the Devialet Expert 140 Pro Integrated Amplifier can be found below:
Official Product Page for Devialet Expert 140 Pro
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided for the Devialet Expert 140 Pro by the manufacturer.
Devialet Expert 140 Pro Lifestyle
| General |
| Brand |
Devialet |
| Full Model Name |
Devialet Expert 140 Pro |
| Release Date |
September 2016 |
| Amplifier Type |
Integrated Amplifier |
| Number of Channels |
2 |
| Amp Class |
ADH (Analog Digital Hybrid) |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
105 watts |
| Watts RMS per Channel into 6-ohms |
140 watts |
| Watts RMS per Channel into 4-ohms |
N/A |
| Frequency Bandwidth |
20 Hz-20 kHz |
| THD |
0.0005% |
| Minimum Impedance |
2 |
| Signal to Noise Ratio |
130 dB |
| Digital Music |
| Built-in DAC |
Yes |
| Bluetooth |
No |
| WiFi |
802.11ac |
| Ecosystem |
| Apple AirPlay |
No |
| Apple AirPlay2 |
No |
| DTS Play-Fi |
No |
| Chromecast built-in |
No |
| Roon |
Ready |
| HEOS |
No |
| BluOS |
No |
| CONNECTIONS |
| Total Analog Inputs |
1 |
| Phono Input |
Yes |
| Optical Digital Inputs |
1 |
| Coaxial Digital Inputs |
2 |
| USB Type |
USB-B (connect to your computer for playback) |
| Preamp Outputs |
No |
| Pre-out / Main-in Loop |
No |
| Headphone Output |
No |
| Removable Power Cord |
IEC 3-prong |
| PHYSICAL SPECS |
| Height |
40.0mm (1-9/16") |
| Width |
383.0mm (15-1/16") |
| Depth |
397.0mm (15-5/8") |
| Weight |
5.66 kg (12.5 lbs) |
| Available Colors |
Dark Chrome |
| OTHER |
| Parts Warranty |
5 Years |
| Labor Warranty |
5 Years |