In Barn for Review: Atoll SDA300 Signature Streamer / DAC / Integrated Amplifier

I believe it was Siddhartha who first strove for all-in-one-ness.

The all-in-one Atoll SDA300 Signature integrated amp pumps out 150 Watts into 8 Ohms from its MOS-FET double push-pull power stage while also housing a DAC and Streamer making it the center of a potentially super simple hifi—Ethernet in, speakers out. It can also be more.

With 2 line level RCA inputs, 4 digital inputs (2x Toslink, 2x Coax), 2 digital outputs (Coax, Toslink), Bluetooth, WiFi, UPnP/DLNA compatibility, a Pre Out, and two USB-A inputs (front and back) for attaching USB storage, the SDA300 Signature is feature rich and ready to roll. There’s also an included remote as well as a free Atoll app for Android and iOS devices that provides access to Qobuz, Tidal, Deezer, Spotify, and HighResAudio. Plus, the SDA300 comes Roon Ready and supports Tidal Connect.

A nice 5″ TFT LED color display (800*480) is centered up front on the 8mm brushed aluminum front panel along with two control knobs that sit on either side and allow for menu navigation/input selection (left knob) and volume control (right knob). Far left sits a 1/4″ headphone jack for personal listening.

the SDA300 is available in black and silver. Photo credit: Atoll

Atoll is located in Brécey, France which is up north in Normandy near Mont Saint-Michel. The company was founded in 1997 by Stephane and Emmanuel Dubreuil and their lineup currently consists of 41 products. I’ve heard, through the grapevine, that the Atoll SDA300 is capable of making sweet, sweet music. We shall see.


Atoll SDA300 Signature
Price: $5500
Company Website: Atoll Electronics
US Distributor Website: Audio Excellent

Technical Data

Power supply: 892,2 VA
Wrms/channel/8Ω: 2×150 W
Wrms/channel/4Ω: 2×280 W
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 PCM1792
Dimensions: 440×365×103 mm
Weight: 19 Kg