Atoll IN300 EVO

The Atoll Electronique IN300 Evolution (EVO) is a high-end, dual-mono integrated amplifier handcrafted in Brecey, Normandy, France. Positioned between the IN200 EVO and the flagship IN400 EVO, the IN300 Evolution refines Atoll’s classic high-current Class A/B architecture with reworked power supplies, premium internal wiring, and modular expansion options. Core Architecture & Power Supply True Dual-Mono Power Delivery: The audio amplification stages are powered by two separate 440 VA toroidal transformers (one per channel), supplemented by an independent 10 VA transformer dedicated to the digital and display logic. Energy Reservoir: Features a massive capacitor bank of 86,150 µF composed of 12 custom low-ESR capacitors (6,800 µF each) designed specifically for Atoll. Output Stage: Utilizes a triple push-pull MOS-FET design per channel running in Class A/B. These MOS-FET circuits provide low memory effect and strong current delivery, allowing the amp to drive difficult, low-impedance loudspeaker loads with control. Power Ratings: 150 W RMS per channel into 8 Ω 260 W RMS per channel into 4 Ω