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IN100 Signature
IN100 Signature
IN100 Signature
AtollAuthorised distributorNew

IN100 Signature

Series Signature

The integrated amp-preamp IN100 Signature is manufactured with a high care: we choose the best 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
11 kg
Output power Wrms/8Ω
2×100 W
Output power Wrms/4Ω
2×140 W
Power supply
2×340 VA
Total of capacitors
31 474 µF
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Overview

The integrated amp-preamp IN100 Signature is manufactured with the utmost care. We choose the best possible components to achieve the highest level of 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.
  • 2×100 W / 8Ω.
  • 2 toroidal transformers of 340 VA each.
  • ALPS motorized potentiometer.
  • Filter capacitors: 4×6800 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 IN100 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
11 kg
Per unit, out of the box.
Model code
ATOLL-IN100-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.
Divers
Possibility of adding DA100 or DA200 digital boards (optional).

Technical data

Output power Wrms/8Ω
2×100 W
Output power Wrms/4Ω
2×140 W
Power supply
2×340 VA
Total of capacitors
31 474 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 at 1 kHz
0,05% / 10 W
Dimensions
440×305×95 mm
Weight
11 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 2025
    ON top.audio 2025

  • There’s also a lot of musicality when listening to the Jazz Hi-Res CD Sampler released by Universal Music, made in Japan, a publisher that doesn’t want to hear about streaming. Cannonball Adderley, Miles Davis, John Coltrane, Stan Getz and many other big names are reviewed in 352.8kHz/24 bit. The CD100 and the IN100 know how to handle this avalanche of qualities. The placement of the instruments and voices in space is striking and perfectly balanced. We are in heaven, and are starting, for pleasure, a marathon listening to the most beautiful records in our collection.

    Edouard Hendrix, www.av2d.fr

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