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The Atoll SDA300 Signature is much more than a network music player: it is a high-performance integrated amplifier with advanced streaming capabilities, delivering a rich, dynamic, and utterly realistic sound experience. It combines the power of the Atoll IN300’s amplification stage with a cutting-edge digital platform, making it a true “all-in-one” system for the most demanding audiophiles.
Thanks to its compatibility with leading streaming services, Internet radio, DLNA/UPnP protocols, and high-resolution formats such as PCM 24-bit/192 kHz and DSD64/DSD128, the SDA300 Signature ensures smooth playback, free from dropouts, and with maximum detail retrieval.
Its internal design includes two 340 VA toroidal transformers, a capacitor bank of 65,800 µF, and dual push-pull MOS-FET output stages, ensuring stable current delivery, absolute control, and outstanding musicality across the entire spectrum.
Premium 8 mm brushed aluminum front panel.
5” color TFT LED display (800×480) showing metadata, cover art, and resolution details.
Reference amplification: 2×150 W RMS/8Ω – 2×280 W RMS/4Ω.
Dual push-pull MOS-FET output stages for maximum dynamics.
Burr-Brown PCM1792 DAC (24-bit/192 kHz) with a dynamic range of 129 dB.
Pure Class A preamp stages with discrete components and zero negative feedback.
Analog volume management via switched resistors (by-pass available).
Filtering capacitor bank: 8×6800 µF low-ESR capacitors, custom-made for Atoll.
MKP coupling capacitors shielded in a metal case.
Gapless playback and playlist creation.
Dedicated control app: ATOLL Signature 2 (Android/iOS).
“Streamer” remote control included.
Connectivity
Inputs
2 × RCA analog
2 × Coaxial S/PDIF (24/192)
2 × Optical Toslink S/PDIF (24/192)
2 × USB-A (front and rear)
1 × RJ45 Ethernet port
1 × Bluetooth® receiver with antenna
1 × Wi-Fi antenna (802.11b/g/n)
Outputs
High-quality speaker binding posts
1 × Preamp output
1 × Coaxial S/PDIF output
1 × Optical Toslink output
1 × Headphone output (6.35 mm front)
1 × 12 V trigger output
Output power:
2×150 W RMS/8 Ω
2×280 W RMS/4 Ω
Total capacitance: 65,800 µF
Input impedance: 220 kΩ
Maximum input level: 3.5 Vrms
THD at 1 kHz: 0.05 %
Bandwidth: 5 Hz – 150 kHz
Slew rate: 1.3 µs
Sensitivity: 350 mV
Dynamic range: 129 dB
S/N ratio: 129 dB
DAC: Burr-Brown PCM1792 (24/192 – DSD64/128)
Dimensions: 440 × 365 × 103 mm
Weight: 19 kg
The Atoll SDA300 Signature is the ultimate solution for those who seek a fully integrated high-end system, combining the power of a reference-grade integrated amplifier with the flexibility of an advanced network player — all within a single elegant and robust chassis.
