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IN50 Signature
IN50 Signature
AtollAuthorised distributor

IN50 Signature

Series Signature

The integrated IN50 Signature is manufactured with a hig care: we choose the best possible components to achieve the highest level of sound performance.

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At a glance

All specifications
Dimensions (W × H × D)
440 × 305 × 95 mm
Weight
7 kg
Output power Wrms/8Ω
2×50 W
Output power Wrms/4Ω
2×70 W
Power supply
170 VA
Total of capacitors
17 874 µF
Price on requestCheck availability

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Overview

The integrated amp-preamp IN50 Signature is manufactured with the utmost care. We choose the best possible components to achieve the highest sound performance. This rigorous search for perfection involves designing proprietary ATOLL circuits to preserve the integrity of the most subtle musical signals.

Our balanced MOS-FET amplifier circuits offer excellent harmonic gradients and have no memory effect, every moment, the current is immediately delivered to your speakers. This is one of the secrets of the musicality that ATOLL amplifiers enjoy.

Highlights

  • 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 ATOLL global remote control.
  • The IN50 Signature can receive the following optional boards: – DAC boards: DA100 and DA200. – PHONO boards: P50 and P100 (can be combined with DAC boards).

Specifications

Inputs
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).
The sources you can connect.
Dimensions (W × H × D)
440 × 305 × 95 mm
Width, height and depth, without cables.
Weight
7 kg
Per unit, out of the box.
Model code
ATOLL-IN50-SIGNATURE
Quote it when you ask a specialist.

Connectivity

Inputs
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).
Outputs
2 Line preamp outputs (for bi-amplification or to connect a subwoofer). 1 Trigger output (12V). 1 Ø 6,35 mm headphone jack output.

Technical data

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

Optional boards

1 Digital board (of your choice)
DA200 2 Coaxial inputs (24 bits/192 kHz). 2 Optical inputs (24 bits/192 kHz). 1 Bluetooth receiver.
1 USB-B input
PCM & DSD. DA100 ———————————
1 Phono board on the AUX input (optional)
P100 (configurable MM or MC). P50 (MM).

Downloads

1

Awards and press

2
  • ON top.audio 2023
    ON top.audio 2023

  • As good wine gets better with age, the IN50 Signature represents the culmination of over 25 years of research, testing and refinement of a now proven scheme. Certainly intended to be accessible to the greatest number, this device is endowed with an ultimately quite aristocratic character. In no case will we discuss its positioning here without legitimately asking whether it does not simply represent the beginning of the top-of-the-range?

    Laurent Thorin, Vumetre magazine, No. 33, January-February 2021

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