

Atoll IN100 Signature INTEGRATED AMPLIFIER
ATOLL IN100 SIG: £1250
P100 (MM & MC): £150
P50 (MM): £100
DA200 DAC BOARD: £350
The Atoll IN100 Signature is engineered with precision and care, featuring premium components and proprietary circuits designed to preserve the integrity of even the most delicate musical details. It delivers power and refinement, embodying Atoll’s commitment to exceptional sound performance.
Key Features:
Powerful Performance: 2×100 W into 8Ω, powered by dual 340 VA toroidal transformers.
Advanced Circuitry: Single push-pull MOS-FET power stage, discrete component audio stages, and MKP technology link capacitors.
Precision Control: ALPS motorised potentiometer and monitoring loop for precise audio adjustments.
Refined Design: 4 mm brushed aluminium front panel and high-performance heat sinks with direct thermal coupling.
Upgradability: Compatible with optional DA100/DA200 DAC boards and P50/P100 phono boards (can be combined).
Additional Highlights:
4×6800 μF filter capacitors for optimal power management.
Class A/B output stage polarisation for dynamic sound.
Double-sided PCBs with a nickel/gold finish for durability.
Thermal protection for reliability and long-term performance.
The IN100 Signature is a powerhouse of precision and flexibility, making it a stellar choice for seasoned audiophiles and those seeking to elevate their Hi-Fi systems. Its robust dual-transformer design, class A/B polarisation, and single push-pull MOS-FET stage deliver dynamic, refined sound with Atoll’s signature musicality.
Optional features, including DAC and phono boards and the Atoll global remote control, enhance its versatility, positioning the IN100 Signature as a standout in Atoll Electronique’s celebrated range of integrated amplifiers.
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).
Various
1 Headphone jack Ø 6,35 mm.
Useful Documentation - IN100 SIG
To utilise the USB input of the optional DAC board, you need to install a specific driver for Windows computers; this driver is not required for MAC and Linux systems. You can download it below:
IN100 SIG SPECIFICATIONS
Output power Wrms/8Ω:
2×100 W
Output power Wrms/4Ω:
2×140 W
Power supply:
2×340 VA
Preamp outputs:
2
Number of inputs:
5+1 BY-PASS
Total of capacitors:
31 474 µF
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:
11 Kg
FINISHES:
Anodised Black, Natural Aluminium
warranty:
2 Years