Atoll Electronique SDA300 Signature
The Atoll Electronique SDA300 Signature combines commanding low-impedance drive with a warm, highly resolved presentation. The Ear found its bass fast and full-bodied, its midrange clean, and its imaging remarkably expansive. High-resolution streaming, broad connectivity and 150W-per-channel authority make this French-built all-in-one a seriously engaging digital hub.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
Deliciously Crispy
Sound Quality
94/100
Build Quality
94/100
Features Connectivity
91/100
Value for Money
95/100
Pros
Powerful, controlled amplification grips demanding low-impedance loudspeakers while delivering tight, deep, full-bodied bass.
Exceptional midrange and treble resolution combines with clean, uncoloured vocals and inviting warmth.
Expansive soundstage, pinpoint imaging and strong dynamics maintain musical involvement from quiet passages to crescendos.
Comprehensive streaming and connection options, including major services, USB, internet radio, analogue inputs and pre-out, offer excellent one-box versatility.
Cons
Apple AirPlay was not included at the time of review.
WATT RECOMMENDS
Save your favorites. Compare them anytime.
Create a free HiFi Hub account to save products to your Wishlist and compare your favorites side by side.
What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 94/100
The SDA300 Signature is described as exceptionally clear, controlled and musically engaging, combining clean tonal presentation with substantial power and finely resolved detail. Reviewers also highlight its expansive staging, precise imaging and ability to remain composed from quiet passages to large-scale crescendos.
Transparency Resolution
95/100
The Ear found an incredible level of midrange and treble detail, beyond what was expected from the system's price. Voices, instrumental textures and small vocal inflections were reproduced with striking clarity, while the midrange was described as clean, uncoloured and free from harshness.
Tonal Balance Musicality
94/100
Reviewers describe a pleasing combination of neutral control and musical warmth. Bass is said to be fast and pleasantly neutral, while instruments sound warm and inviting and voices have an alluring, natural presence.
Dynamics
95/100
The amplifier was praised for immense control and tightness across the frequency range, keeping major crescendos forceful and coherent. It reportedly handles both low-level articulation and demanding low-impedance speakers with authority, with bass dynamics remaining impressive even at modest levels.
Soundstage Imaging
94/100
The review reports pinpoint imaging across an immense soundstage that draws the listener convincingly into recordings. Compared with the earlier SDA200, the presentation was said to be wider and deeper, with superb definition and placement.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
94/100
The Ear calls the SDA300 Signature superbly engineered and well built, describing it as a benchmark-quality streaming amplifier. It is assembled, tested and finalized in Atoll's French workshops, with the manufacturer emphasizing close control of the production process and reliability.
Features Connectivity
91/100
This is a genuinely capable streaming integrated amplifier, with high-resolution access to Qobuz, Tidal, Deezer, Spotify and Highresaudio, plus front and rear USB connections for local music storage. Its Burr-Brown DAC and substantial 150W-per-channel amplifier section make it a well-rounded one-box system, although Apple AirPlay is not included.
Value for Money
95/100
At roughly $3,995 to $5,800, the SDA300 Signature is presented as strongly competitive among premium streaming amplifiers. The reviewer felt its definition, detail and overall scale could be mistaken for a system costing many times more, and noted that assembling equivalent separate components would cost considerably more.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
Forum Mentions
No forum mentions found yet
Specifications
- Power supply
- 892,2 VA
- Puissance
- 2×150 Wrms/channel/8Ω 2×280 Wrms/channel/4Ω
- Total of capacitors
- 65 800 µF
- Input impedance
- 220 kΩ
- Maximum input level
- 3,5 Vrms
- Distortion at 1 kHz
- 0,05%
- Bandwidth
- 5 Hz – 150 kHz
- Rising time
- 1,3 µs
- Sensitivity
- 350 mV
- Dynamic
- 129 dB
- Signal/Noise ratio
- 129 dB
- D/A converter
- BURR-BROWN PCM1792A 24 bits/192 kHz
- Dimensions
- 440×365×103 mm
- Weight
- 19 Kg
Manufacturer's Description — Atoll Electronique
STREAMER / DAC / INTEGRATED AMPLIFIER
The SDA300 Signature is designed to reproduce the integrity and complexity of musical textures with great fluidity. It offers free access to online radio stations and lets you play live, in high definition, on the main streaming platforms. It is open to your entire network and has very complete connectivity. It converts the digital signal to reproduce your audio files with striking realism. As an all-in-one concept, it goes even further by functioning as a complete music player and integrated amplifier, using the amplifier section of the IN300.
- 8 mm brushed aluminium front panel.
- 2 toroidal transformers of 440 VA each (audio) + 2×4.5 VA + 3.2 VA.
- Total of capacitors: 65 800 µF.
- 2×150 Wrms / 8Ω.
- MOS-FET double push-pull power stage.
- High-quality, MKP technology link capacitors, shielded in a metal box.
- Filter capacitors: 8×6800 μF, high-quality, low ESR, designed
explicitly for ATOLL. - BURR BROWN PCM1792A converter:
– Dynamic: 129 dB.
– Signal/Noise ratio: 129 dB. - 5″ TFT LED colour graphic display (800*480).
- Discrete component audio stages without negative feedback in pure Class A.
- Analog volume management (switched resistors) that can be bypassed.
- Specific power supply dedicated to the audio stages.
- Specific power supply dedicated to the analogue digital audio converter.
- Accepted resolutions: PCM up to 24 bits/192 kHz and DSD64 and DSD128.
- Playback of audio files present on the network (DLNA and UPnP compatible) in a wired RJ45 or Wi-Fi connection.
- Display of names, tags, resolutions and album covers.
- “Gapless” system (no cut between pieces).
- Possibility to create playlists.
- USB-A file systems: FAT32, NTFS, EXT2/3/4.
- ATOLL “streamer” remote control supplied as standard.
- ATOLL Signature 2” App (Android and IOS).
CONNECTIVITY
Inputs
2 Analog Inputs – 2 coaxial S/PDIF (24 bits/192 kHz PCM).
2 Toslink optical S/PDIF inputs (24 bits/192 kHz PCM).
2 USB-A inputs (1 front and 1 rear).
1 RJ45 network socket.
1 Bluetooth® receiver (antenna).
Outputs
Speakers.
1 Pre-out output.
1 Coaxial S/PDIF output.
1 S/PDIF optical Toslink.
1 Trigger output (12V).
1 Headphone output on the front panel (Ø 6,35 mm – 1/4″).
1 Wi-Fi antenna (802.11b/g/n).
The SDA300 Signature offers excellent control with Apple or Android apps, or the included remote control.
The stylish 5″ TFT colour display gives the user the correct information about the device’s functions and shows cover art
and song details.
Verified Dealers
Online Dealers
All Dealers
Zoom out the map to see more dealers
Authorized dealers for Atoll Electronique SDA300 Signature
- A Tube High Fidelity — online and in-store — Almere, Flevoland, Netherlands (website)
- Absolute Audio - Canada — in-store — Calgary, Alberta, Canada (website)
- Akustik Strauss — in-store — Garmisch-Partenkirchen, Bayern, Germany (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- AM Audio Design — in-store — Beauvais, Hauts-de-France, France (website)
- Ambiance Concert — in-store — Angers, Pays de la Loire, France (website)
- Ars Antiqua Audio — online and in-store — Boadilla del Monte, Comunidad de Madrid, Spain (website)
- Art Sonique — France (website)
- Audio Alternative — online and in-store — Fort Collins, Colorado, United States (website)
- Audio Ark — online and in-store — Edmonton, Alberta, United States (website)
and 85 more verified dealers