French audio specialist ATOLL Electronique introduces the PR400EVOLUTION, the latest pinnacle in its acclaimed Evolution Series, redefining preamplifier performance with a bold new industrial design, upgraded circuitry, and exceptional audio fidelity. Crafted with precision and engineered for audiophiles, the PR400EVOLUTION combines cutting-edge technology with elegant aesthetics, delivering unparalleled sound quality and versatility for the most discerning listeners.
Exquisite Design Meets Robust Engineering
The PR400EVOLUTION showcases a refined industrial design, built on a 2 mm thick steel chassis paired with a 10 mm thick brushed, micro-blasted, anodized aluminum front panel. High-precision engraving, machined aluminum heat sinks, and solid aluminum knobs elevate both form and function, ensuring durability and a sophisticated presence in any high-end audio setup. Available in Silver or Black, the preamplifier is as visually striking as it is sonically impressive.
At its core, the PR400EVOLUTION is powered by four toroidal transformers two 10 VA units dedicated to audio and additional 10 VA and 1.6 VA transformers for logic ensuring clean, stable power delivery for uncompromised performance. High-quality shielded MKP link capacitors further enhance signal purity, minimizing distortion and preserving every nuance of the audio.
True Dual-Mono Architecture
The PR400EVOLUTION embraces a true dual-mono architecture, meticulously engineered for the lowest distortion and optimal channel separation. Key features include:
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Two toroidal transformers, one per channel, for independent power delivery.
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Four independent audio stages, perfectly balanced for pristine signal integrity.
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Two motorized ALPS potentiometers, one per channel, for precise volume control.
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Bipolar transistor input stages and LED current sources for bias stabilization, ensuring consistent performance.
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Symmetrical audio stages with extremely low feedback, delivering natural, transparent sound.
This architecture results in a preamplifier that offers exceptional clarity, dynamic range, and channel separation, making it a perfect match for high-fidelity systems.
Versatile Features for Modern Audiophiles
The PR400EVOLUTION is designed to integrate seamlessly into any audio setup, offering a wide range of audio inputs with the ability to name each for personalized convenience. A high-contrast OLED display provides clear feedback and can be set to turn off after 5 seconds of inactivity for a distraction-free experience. The preamplifier also features precise balance adjustment with memory functionality, allowing users to fine-tune their listening preferences effortlessly.
For added flexibility, the PR400EVOLUTION offers optional internal cards: the DA100 or DA200 DAC cards for high-resolution digital playback and the P50 or P100 Phono cards for vinyl enthusiasts. Users can also choose between low-consumption standby mode or a warm-up mode to keep the system primed for instant listening. The three-color configurable knob backlighting adds a customizable aesthetic touch, enhancing the preamplifier’s elegance.
Intuitive Control and Seamless Integration
The PR400EVOLUTION comes equipped with the ATOLL global remote control, providing effortless command over the preamplifier and other ATOLL components. With its intuitive interface and robust connectivity options, this preamplifier is designed to serve as the heart of a high-end audio system, delivering uncompromising performance whether paired with power amplifiers, active speakers, or turntables.
A New Benchmark in Preamplification
The ATOLL PR400EVOLUTION sets a new standard for preamplifier design, blending meticulous craftsmanship, advanced engineering, and user-focused features. Whether you’re building a reference-grade stereo system or seeking a versatile hub for your audio setup, the PR400EVOLUTION delivers a listening experience that is both technically precise and emotionally captivating.
