Informations
Product description
The Atoll IN100 Signature is a high-performance integrated amplifier handmade in France by Atoll Electronique. It is widely regarded in audiophile circles for its robust power supply, dual-mono architecture, and dynamic, highly detailed sound profile.
Core Strengths
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True Dual-Mono Design: Utilizing separate 340 VA toroidal transformers for left and right channels, the IN100 Signature reduces crosstalk, improves stereo imaging, and delivers exceptional channel separation.
- High Current Drive: The large power reservoir and MOS-FET output transistors allow it to drive difficult speaker loads without losing control or compressing dynamic swings.
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Modular Upgradeability: The stock unit is purely analog, but Atoll offers factory option slots for:
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Digital Boards: DA100 (Coax/Optical) or DA200 (Coax, Optical, Bluetooth, and XMOS USB-B up to PCM 384kHz / DSD128).
- Phono Stages: P50 (MM) or P100 (MM/MC).
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- Pre-Out & By-Pass Flexibility: The dual pre-outs make adding subwoofers seamless, while the By-Pass mode allows direct integration into home theater setups as a dedicated front-channel power amplifier.
Specifications
| Parameter | Specification |
| Output Power | 100 W RMS / channel @ 8Ω (140 W RMS @ 4Ω) |
| Power Supply | Dual Toroidal Transformers (2 × 340 VA = 680 VA total) |
| Filter Capacitance | 31,474 µF |
| Topology | Dual-mono, Class A/B with single push-pull MOS-FET output stage |
| Frequency Response | 5 Hz – 100 kHz |
| Analog Inputs | 5 × RCA line-level, 1 × BY-PASS (power amp mode) |
| Outputs | 2 × Pre-Out (subwoofer/bi-amp), 6.35 mm headphone jack, 12V Trigger |