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ATC SIA2-150 stereo integrated amplifier

150 Watt per channel Stereo Integrated Amplifier by ATC. ATC has an enviable heritage of the design and manufacture of no-compromise studio electronics including the power ...
Product Code:  ATC SIA2-150
Product Brand:  ATC
Product Condition:  New
SIA2-150 : Stereo Integrated Amplifier

What Hifi say

"The SIA2-150 is a multi-talented amp that works incredibly well across genres and can hold your attention for hours on end"

"Sturdy design; hugely emotive and convincing sound; sensational timing and dynamics"

"The ATC produces a spine-tingling connection between the listener and the music, not just with rock, but whatever your musical poison"

"ATC has set the bar extremely high with the sensational SIA2-150, and that's no mean feat…"


  • 150 watts per channel.
  • Class A/B operation.
  • Hand built in the UK.
  • 5 RCA inputs.
  • Record, sub and pre outputs.
  • Headphone jack.
  • Remote control.
  • 6 year warranty.


Output Power into 8 ohms :
Input Sensitivity :
Input Impedance :
 22k ohms
Frequency Response :
 5Hz - 200KHz ±0.1dB
Signal / Noise Ratio :
Crosstalk :
Dimensions (HxWxD):
Weight (HxWxD):
 20kg / 44lbs


Introducing the ATC SIA2-150 MK2 150 Watt per channel Stereo Integrated Amplifier, ATC has an enviable heritage of the design and manufacture of no-compromise studio electronics including the power amplifiers included in all ATC Active monitors.
With the ATC SIA2150 integrated amplifier MK2 as chosen the balance of features and power output very carefully in order to offer a Hi-Fi component that will meet a very wide range of requirements. The ATC SIA2150 amplifier's output power of 150W is sufficient to reproduce well recorded material, Rock, Pop, Classical or Jazz at realistic levels in virtually all domestic situations.
As designers of the worlds most sophisticated drive units ATC are only too aware of the requirements for a power amplifier to properly drive a real loudspeaker load. The grounded source FET power amplifier in the ATC SIA2-150 integrated amplifier, as also used in all ATC Active monitors, delivers the high current and damping to fully control any passive monitor
The ATC SIA2 150 integrated amplifier MK2 is however a supremely subtle and tender performer, conveying the gentler extreme of recorded dynamics with sensitivity and inner detail only possible when all distortions and non linerarities are reduced to levels well below audibility.
The extremely low distortion also explains the tangibility and precision of the stereo sound stage, recreating the full presence of the recording. The simple and direct signal path within the pre amplifier stages of the ATC SIA2-150 integrated amplifier preserves subtle low level information and ensures that the whole combination of the pre and power amplifier remains neutral and totally free of colourations.
In fact the ATC SIA2 150 Integrated amplifier MK2 is a perfect match for the absolutely natural and uncoloured reproduction of ATC monitors. A combination that will present your favourite recordings just as the recording engineer intended He was probably using ATC to master the recording anyway!


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