Diverse Astoll ST 300 Signature Network Audio Player

Note: This offer is for a used device. The device may have minor scratches, but this does not affect its functionality – it is in perfect sound and technical condition.

Atoll ST 300 Signature: High-End Network Player & Preamplifier Control Center

The Atoll ST 300 Signature expands the streamer range of renowned manufacturer Atoll, consistently moving towards the absolute top class. Designed for discerning audiophiles, this device combines state-of-the-art streaming technologies, first-class converter components, and an extremely powerful preamplifier section in a highly robust chassis with an 8 mm thick bicolor front panel.

High-end signal processing and discrete Class-A output stage

Two high-precision Burr-Brown PCM1792 digital-to-analog converters – one per channel – ensure fully balanced signal processing with up to 24-bit/192 kHz resolution and DSD128 support. Analog volume control modules per channel are used for precise level adjustment. Users wishing to operate the ST 300 Signature as a pure source with an existing preamp can deactivate the analog volume control at any time via the bypass function.

The discretely designed Class-A output stage boasts enormous current delivery capacity, effortlessly powering even demanding amplifiers or active loudspeakers. Top-quality components guarantee maximum sound fidelity: high-grade MKP coupling capacitors and gold mica capacitors are paired with separate power supplies for the digital (30 VA) and analog sections (10+10 VA) with an impressive total filtering capacitance of 69,000 µF.

Extensive streaming variety and intuitive controls

The system processes common audio formats such as FLAC, WAV, AIFF, ALAC, AAC, and MP3 without gaps. Renowned high-resolution streaming services like Qobuz, TIDAL, Deezer, and MQA are seamlessly integrated. Thanks to Roon Ready certification and full Audirvana compatibility, the network player integrates perfectly into existing multiroom and hi-fi software environments. Furthermore, over 100,000 radio stations and podcasts worldwide are available via the airable internet radio service.

The system can be operated conveniently from the sofa using the Atoll app for iOS and Android.

Versatile control center for all audio sources

Beyond its streaming capabilities, the device serves as the central interface for your entire hi-fi system. Two analog RCA inputs and four digital inputs (two optical and two coaxial) are available for connecting external source devices. Thanks to integrated Bluetooth, mobile devices can also be connected wirelessly.

External hard drives and USB flash drives with file systems such as FAT32, NTFS, or EXT2/3/4 can be connected directly to the USB-A ports. Since the USB ports are supplied with over 1 amp of power – twice the standard – even large or power-hungry USB 3.0 hard drives run absolutely reliably without additional network infrastructure.

Technical data

• D/A converters: 2x BurrBrown PCM1792
• Maximum PCM resolution: 24-bit / 192 kHz
• Max. DSD resolution: DSD128
• Frequency range: 5 Hz – 20 kHz
• Total harmonic distortion (THD @ 1kHz): 0.0004%
• Dynamic range: 132 dB
• Signal-to-noise ratio (SNR): 129 dB
• Rise time: 1.5 µs
• Output impedance: 5.6 ohms
• Output voltage (0dBFS): 2.5 Vrms
• Coupling capacitor: MKP 10 µF
• RF capacitor: Gold Mica
• Power supply for digital section: 30 VA
• Power supply for analog section: 10+10 VA
• Filter capacity: 69,000 µF
• Analog inputs (RCA): 2
• Optical digital inputs: 2
• Coaxial digital inputs: 2
• USB inputs (Type A): 2 (with > 1A power supply)
• USB inputs (Type B): 0
• Readable file systems: FAT32, NTFS, EXT2/3/4
• Analog outputs XLR (stereo): 1
• Analog outputs RCA (stereo): 1
• Optical digital outputs: 1
• Coaxial digital outputs: 1
• Headphone output: 3.5 mm jack
• Trigger output: 12V (3.5 mm jack)
• Front panel: 8 mm bicolor
• Dimensions (W x H x D): 440 x 90 x 255 mm
• Weight: 7 kg

Information on the used device

Accessories

Remote control, WiFi antennas, power cable, quick start guide