ATC | SIA2-100

Integrated Amplifier

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• 2 x line level analogue inputs
• 3 x digital inputs: USB, Coaxial, TOSLINK
• Premium AKM 32-bit DAC
• USB digital input supports up to 384kHz PCM data
  and native DSD256*

• ATC Discrete MOSFET Output Stage with
  100W/Ch. Max. Cont. Power.
• Headphone amp featuring discrete output stage
• Compact Size – 2/3rds width
• Handmade in England
• 6 year warranty

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Specifications

Maximum Power Output: 100W (Continuous Av. 8 Ohms, 1kHz, both channels driven)
Line Inputs: Two, stereo (one with additional front panel 3.5mm jack)
Line Input Sensitivity: 500mV
Input Impedance: 13k8 Ohms
Line Outputs: One, stereo
Overload Capacity: 13dB
Line Output Impedance: 10 Ohms
Frequency Response: < 2Hz – > 250kHz (@ -3dB)
Total Harmonic Distortion: 1kHz <0.0015% (-96dB), 10kHz <0.002% (-90dB)
Crosstalk: >80dB (10Hz – 20kHz)
S+N/N Ratio: Wide Band > 96dB, DIN > 108dB, > IEC “A”112d
Dimensions (HxWxD): 113 x 315 x 315mm / 4.4 x 12.4 x 12.4”
Dimensions exclude rear panel connectors. Take care to leave space behind the unit for connectors and cables.
Weight: 9.70kg (24.39lbs)

DIGITAL INPUTS – COAXIAL & OPTICAL
Distortion: 1kHz <0.0015% (-96dB ), 10kHz <0.005% (-86dB)
Frequency Response: 20Hz – 20kHz (+/- 0.1dB)
S+N/N Ratio: >100dB (IEC “A”)
Word Lengths Supported: 16 – 24 Bit
Sample Rates Supported: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz (192kHz supported via coaxial input only)
DIGITAL INPUTS – USB (PCM)
Distortion: 1kHz <0.0015% (-96dB ), 10kHz <0.005% (-86dB)
Frequency Response: 20Hz – 50kHz (+/- 0.1dB)
S+N/N Ratio: >100dB (IEC “A”)
Word Lengths Supported: 16 – 32 Bit
Sample Rates Supported: 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96.0kHz, 76.4kHz, 192.0kHz, 352.8kHz, 384.0kHz
DIGITAL INPUTS – USB (DSD)
Frequency Response: 10Hz – 50kHz (+/- 0.1dB)
S+N/N Ratio: >100dB (IEC “A”)
DSD Rates Supported: Windows DSD64, DSD128, and DSD256, MAC OS DSD64 and DSD128
ATC reserves the right to vary products and specifications without prior notice.

​Reviews

ATC SIA2-100 & SCM7 Review, Stereonet March 2020

SIA2-100 Review, Gramophone Mag. Sept 2019​
SIA2-100 Review Hi-Fi Choice Oct. 2019
SIA2-100 & SCM7 System Review, Stereonet, March 2020