Atoll IN300 Evolution - Black
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The Atoll IN300 Evolution is a high-performance integrated amplifier designed for music lovers seeking exceptional power, precision, and natural musical expression. Combining refined French craftsmanship with advanced audio engineering, it delivers 2 × 150 W RMS into 8 Ω and 2 × 260 W RMS into 4 Ω. Its true dual-mono architecture features two 440 VA toroidal transformers dedicated to the audio stages, complemented by a separate 10 VA power supply for the digital control circuits, ensuring excellent channel separation, stability, and dynamic performance.
At the heart of the Atoll IN300 Evolution, triple push-pull MOSFET output stages, high-quality shielded MKP coupling capacitors, and an impressive 86,150 µF total filtering capacity provide the foundation for a powerful yet remarkably refined listening experience. Its 8 mm brushed aluminum front panel, solid steel chassis, high-contrast OLED display, and carefully selected components reflect Atoll’s commitment to quality and longevity. With balanced XLR connectivity, extensive analog inputs, and optional digital and phono expansion boards, the IN300 Evolution offers the flexibility to become the centrepiece of an exceptional high-fidelity system.
The Atoll IN300 Evolution can receive the following optional boards:
- DAC boards: DA100 and DA200.
- PHONO boards: P50 and P100 (can be combined with DAC boards).
Atoll Electronique’s philosophy is more than using high-performance schematics: it’s a consistent approach and rational design, implementing the highest-quality components while maintaining an exceptional price-performance ratio.
We opted for metal chassis, front panels, and discrete component circuits biased to Class A for the preamplifiers and Class A/B for the amplifiers. The power transistors we use are MOSFETs because they offer the advantage of high efficiency with remarkable audio performance.
We strive to satisfy our customers to the maximum by offering them products of the highest quality. The reward for our efforts: musicality, fluidity, richness of timbre and sound detail, an extraordinarily realistic liveliness for a faithful reproduction of your favourite music. It is essential to enhance the enthusiasm of a vast panel of customers since the creation of Atoll has unanimously validated our efforts, an enthusiasm confirmed by numerous distinctions awarded by critics in France and abroad.
All components are inserted and welded at the main factory in France (Brecey, Normandy). We take great care in the handmade assembly and test procedure, which involves four steps: checking, controlling, and checking each unit before shipment.
The warranty is valid for two years from the date of purchase. The warranty applies to products that have been used correctly and in accordance with the manufacturer's instructions.
2 x 260 W
Watts RMS / 4 Ω
With 2 × 150 W into 8 Ω and 2 × 260 W into 4 Ω, the Atoll IN300 Evolution delivers impressive power reserves, excellent speaker control, and dynamic musical reproduction, even during demanding passages.
86,150 µF
Total of capacitors
Its substantial filtering capacity, supported by two 440 VA toroidal transformers, provides the energy reserves needed for fast transients, authoritative bass, and effortless musical dynamics.
Powerful amplification and exceptional control
With a bandwidth extending from 5 Hz to 100 kHz and a rise time of just 2 µs, the Atoll IN300 Evolution combines speed, precision, and remarkable dynamic responsiveness. Its dual-mono architecture and triple push-pull MOSFET output stages deliver exceptional control, allowing music to unfold with clarity, stability, and natural expression, even through complex and demanding passages.
IN300
Power and refinement in perfect harmony
The Atoll IN300 Evolution reveals music with remarkable authority, transparency, and refinement. Its bass is deep, powerful, and precisely controlled, establishing a solid rhythmic foundation without compromising speed or definition. The midrange is rich, open, and beautifully expressive, allowing voices and acoustic instruments to retain their natural textures and emotional presence. High frequencies are detailed, extended, and airy, bringing subtle nuances to life while maintaining a smooth, balanced presentation.
Its expansive soundstage creates a convincing sense of space, depth, and instrument separation. From intimate acoustic recordings to large orchestral performances, the Atoll IN300 Evolution combines dynamic energy with a natural sense of ease, drawing the listener closer to the music without sacrificing detail or musical coherence.
Discover the IN300 Evolution
2 × 150 W RMS / 8 Ω – 2 × 260 W RMS / 4 Ω
86,150 µF
5 Hz – 100 kHz
2 µs
220 kΩ
450 mV
100 dB
0.05%
< 0.5 W
440 × 365 × 103 mm
16 kg
- 8 mm brushed, micro-blasted, and anodized aluminum front panel with high-precision engraving
- 1.5 mm steel chassis
- High-contrast OLED display
- Tellurium copper speaker terminals specifically manufactured for Atoll
- High-quality internal speaker output wiring
- Gold-plated RCA output connectors
- Power supply transformers:
- 2 × 440 VA toroidal transformers (audio stages)
- 1 × 10 VA transformer (digital control circuits) - Dual-mono power supply architecture:
- Independent power supply for each audio channel
- Separate volume attenuator for each channel - 86,150 µF total filtering capacity:
- 12 × 6,800 µF high-quality, low-ESR main filtering capacitors - Soft-start power-on system to prevent current surges
- High-quality Absolue Creations internal mains wiring
- High-precision current sources using bipolar transistors and LEDs
- Fully discrete, symmetrical bipolar input stages
- Triple push-pull MOSFET power output stages
- Class A/B output stage biasing
- Very low negative feedback for natural and dynamic sound reproduction
- High-quality shielded Mundorf MKP coupling capacitors
- Double-sided printed circuit boards with nickel-gold finish
- Independent volume attenuator for each channel to preserve dual-mono architecture
- Precise balance adjustment with memory
- Customizable input names
- Selectable standby modes: low consumption or preheating
- Adjustable transition time to low-consumption standby
- High-contrast OLED display with automatic display-off option after five seconds of inactivity
- Atoll global remote control included as standard
- Optional digital and phono expansion boards
- Soft-start system for controlled power-up
- 1 stereo balanced XLR input
- 5 analog RCA inputs: AUX (or optional phono), CD, TUNER, DVD, and TAPE
- 1 BYPASS input for home theatre integration
- 1 TAPE recording output
- 2 analog preamplifier outputs for bi-amplification or subwoofer integration
- 1 × 12 V trigger output
- 1 × 6.35 mm headphone output
- 1 pair of speaker outputs
- Optional DA100 digital card:
- 2 coaxial inputs (24-bit / 192 kHz)
- 2 optical inputs (24-bit / 192 kHz) - Optional DA200 digital card:
- 2 optical inputs (24-bit / 192 kHz)
- 2 coaxial inputs (24-bit / 192 kHz)
- 1 asynchronous USB-B input (PCM up to 32-bit / 384 kHz and DSD up to DSD256)
- 1 Bluetooth input - Optional P50 (MM) or P100 (MM/MC) phono board
High-fidelity products, designed and hand-made in France
Powerful amplification designed for natural musical expression
FAQ - Atoll IN300 Evolution
With its refined dual-mono architecture, powerful triple push-pull MOSFET amplification, and substantial energy reserves, the Atoll IN300 Evolution delivers exceptional control, musical transparency, and dynamic performance. Its balanced analog connectivity, intuitive operation, and optional digital and phono expansion boards make it a versatile centrepiece for demanding high-fidelity systems.
What are the main improvements of the Atoll IN300 Evolution compared to the previous generation?
The Atoll IN300 Evolution introduces a revised power supply architecture, improvements to its audio performance, and a new low-consumption standby mode. Unlike the previous generation, digital conversion is now available through optional DA100 or DA200 boards, allowing users to choose the connectivity best suited to their systems. It retains its powerful dual-mono design and triple push-pull MOSFET output stages while offering enhanced flexibility and efficiency.
Is the Atoll IN300 Evolution easy to install and use?
Yes. The Atoll IN300 Evolution combines intuitive front-panel controls with a clear OLED display and an included Atoll global remote control. Users can adjust and memorize the channel balance, rename inputs, and select their preferred standby behaviour. Its comprehensive analog connectivity allows it to integrate easily into a wide variety of high-fidelity systems.
What types of speakers can be paired with the Atoll IN300 Evolution?
With 150 W per channel into 8 Ω and 260 W per channel into 4 Ω, the Atoll IN300 Evolution offers substantial power reserves for a broad range of bookshelf and floorstanding loudspeakers. Its dual-mono power supply and triple push-pull MOSFET output stages help maintain precise bass control, dynamic expression, and clarity. Speaker sensitivity, impedance, room size, and listening preferences should always be considered when selecting the ideal pairing.
Can the Atoll IN300 Evolution be integrated into a home theatre system?
Yes. The Atoll IN300 Evolution features a dedicated BYPASS input that allows it to operate as a power amplifier for the front left and right speakers when connected to a compatible AV receiver or home theatre processor with preamplifier outputs. In this configuration, the home theatre processor manages the volume, providing seamless integration between two-channel music listening and multichannel entertainment.
What digital sources can be connected to the Atoll IN300 Evolution?
The Atoll IN300 Evolution can accommodate optional DA100 or DA200 digital boards. The DA100 provides two coaxial and two optical inputs supporting PCM up to 24-bit / 192 kHz. The DA200 adds an asynchronous USB-B input and Bluetooth reception, allowing connection to compatible CD transports, streamers, computers, and mobile devices. Through USB-B, the DA200 supports PCM up to 32-bit / 384 kHz and DSD up to DSD256. Digital inputs are available only when the corresponding optional board is installed.
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