Review Atoll ST300 streamer and Atoll AM300 power amplifier


  • Fine playback
  • Beautifully made
  • Complete
  • Versatile
  • Works flawlessly
  • Roon


  • None
  • Price: € 5600

    Build quality


    What a fine d/a converter we say out loud to no one in particular. We’ve heard Burr Brown dacs before but here what stands out most is the refinement that is gets pretty close to our Sonnet Morpheus. This dac is smooth, radiates tranquility and is quite insightful. We can’t imagine anyone attaching a separate dac to this device. For some listeners, the dac may come across as a little too well behaved but with prolonged listening, this is an asset. We don’t miss a beat and relax immediately. The Atoll dac sounds a little brighter than our own Nos dac but don’t see this as a negative. On the contrary. The balance is just fine. Lots of resolving power, speed and plenty of detail. Well done! As a preamplifier, the ST300 does not disappoint either. Wide dispersion, depth in the soundstage and fine imaging. These all-in-one devices have become very good we again shout out to no one in particular. Streaming via Roon sounds excellent. Every aspect of this streamer is perfectly balanced, giving us a very complete picture. The combination with the Bryston is truly excellent. Better than with the Atoll AM300 Signature, which in our opinion emphasizes the soft character of the streamer a little too much. So it is important to find a suitable power amplifier for this streamer so that it fully comes into its own. That the Bryston is a better match shouldn’t be a surprise. It costs more than three times as much as the Atoll AM300.

    We briefly had the Atoll AM300 in the set and found it to be especially high value. The brothers Dubreuil need to make a living and need to be able to pay their staff but apparently that can be done without charging absurdly high prices. The AM300 Signature is dual mono design and uses excellent components. Two hefty ring transformers, six mosfets per channel and symmetrical output stages via a proprietary stabilization system. You get a whopping 150 watts in Class A/B of which the first are in Class A. You can also switch them to mono should you desire even more power but that seems unlikely to us. The AM300 clearly has the Atoll house sound. Laid-back, round, generous but with enough liveliness. The AM300 has a friendly character and emphasizes almost nothing so it will perform well in multiple situations. The low is a bit rounder than strictly neutral but that’s about it.

    Type test
    Single Test
    • Analog RCA
    • Digital Coaxial
    • Digital Optical
    • Digital USB
    • Streamer ethernet
    • Streamer wifi
    • Bluetooth
    • Analog RCA
    • Analog XLR
    • Digital Coaxial
    • Digital Optical
    Product type
    Max samplingrate
    192 kHz
    Max bit depth
    24 bit
    7 Kg
    • Width: 44 cm
    • Depth: 26 cm
    • Height: 9 cm
    Production country
    Amplifier type
    Power Amplifier
    Amplifier technology
    Class AB
    Amplifier inputs
    • Analog RCA
    • Analog XLR
    Specification #1
    • Resistance: 8 ohm
    • Value specified: 150 watt
    • Value measured: 0 watt
    Specification #2
    • Resistance: 4 ohm
    • Value specified: 280 watt
    • Value measured: 0 watt
    • Width: 44 cm
    • Depth: 36 cm
    • Height: 10 cm
    Weight amplifier
    19 Kg
    Production country


    1. Can someone please clarify Geoffrey’s comment “ You can dim the screen or even turn it off but we think that’s only necessary if you’re streaming via Nas and don’t get cover art”

      What exactly does he mean?

      With my ST200 you get full cover art support but the cover art must be present on the attached NAS drive.


        1. Thank you Geoffrey, please report back or maybe update your review if possible. I have zero issues with my ST200 Signature with our attached Buffalo NAS drive and cover art.

          The only issue or complaint I would have with Atoll streamers and I reported this to Atoll already is the limited support for attached USB or NAS drives when it comes to searching for artist (extremely slow).

          It is highly recommend to use some type of server software like: MinimServer or Jriver to help speed things up.

          Thanks again,

      1. I think it is a best practice to use UPnPServer software like JRiver, AssetUPnP, Audirvana or MinimServer if you like to stream local content to a streamer or streamer/DAC combination. Or choose Roon if that is supported and you like its functionality.

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