Atoll IN50 Signature


Atoll IN50 Signature

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Atoll IN50 Signature : Integrated Amplifier


The IN50 Signature integrated amp-preamp is manufactured with the greatest care: we choose the best possible components to achieve the highest level of sound performance. This rigorous search for perfection goes through the design of proprietary ATOLL circuits in order to preserve the integrity of the most subtle musical signals.

 4 mm brushed aluminium front panel.

  • 2×50 Wrms / 8Ω.
  • Toroidal transformer of 170 VA.
  • ALPS motorized potentiometer.
  • Filter capacitors: 2×6800 μF.
  • Single push-pull MOS-FET power stage.
  • Monitoring loop.
  • Discrete component audio stages.
  • MKP Technology Link Capacitors.
  • High-performance heat sinks, direct thermal coupling.
  • Double-sided circuit boards with nickel/gold finish.
  • Polarization of output stages in class A/B.
  • Thermal protection.
  • Optional DAC board: DA100 or DA200.
  • Optional PHONO board: P50 or P100, can be combined with the DAC board.
  • Optional ATOLL global remote control.

Specifications :

Output power Wrms/8Ω: 2×50 W
Output power Wrms/4Ω: 2×70 W
Power supply: 170 VA
Total of capacitors: 17 874 µF
Number of inputs: 5+1 BY-PASS
Preamp outputs: 2
Bandwidth: 5 Hz – 100 kHz
Rising time: 2,5 µs
Input impedance: 357 kΩ
Sensitivity: 100 mV
Signal/Noise ratio: 100 dBA
Distortion rate at 1 kHz: 0,05% / 10 W
Dimensions: 440×305×95 mm
Weight: 7 Kg

5 Audio inputs (RCA): AUX (or optional P50 / P100 phono stage), CD, TUNER, DVD, TAPE (IN + OUT).
1 BY-PASS input (used as a power amplifier).

2 Line preamp outputs (for bi-amplification or to connect a subwoofer).
1 Trigger output (12V).

1 Headphone jack Ø 6,35 mm.