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Atoll Electronique IN300 Evolution
The IN300 Evolution integrated amplifier features reworked power supplies, improved audio performance, and a low-power mode. DAC boards are now optional.
- 8 mm brushed aluminium front panel, micro-blasted and anodised, with high-precision engraving.
- 2 x 150 Wrms / 8Ω.
- 1.5mm thick steel chassis.
- Two 440 VA toroidal transformers for the audio stages plus 10 VA for the digital stages.
- Soft start stage to avoid power surges.
- High-end ABSOLUE CREATIONS internal wiring on the power supply side.
- Filter capacitors: 12 x 6800 μF high-quality capacitors with a low ESR specifically designed for ATOLL.
- High-quality, shielded MKP coupling capacitors.
- Bipolar transistor and LED current sources to ensure perfect voltage stability.
- Triple push-pull MOS-FET power stage.
- Polarisation of the output stages in class A/B.
- Possibility of choosing standby mode: Low consumption or preheating.
- 2 volume attenuators: 1 per channel to maintain the dual mono architecture.
- Possibility to manage balance and memorise it.
- Possibility to rename the inputs.
- High contrast OLED display (on or off mode after 5 seconds of inactivity).
- Double-sided printed circuits with nickel/gold finish.
- ATOLL global remote control supplied as standard.
- The IN300 EVO can receive the following optional boards:
– DAC boards: DA100 and DA200.
– PHONO boards: P50 and P100 (can be combined with DAC boards).
- Specific copper speaker output connectors specially manufactured for ATOLL.
- Internal wiring of the speaker outputs with high-end cable.
- Output connectors (RCA) gold-plated.
CONNECTIVITY
Analog Inputs
5 Line Inputs (including 1 AUX input for optional PHONO board).
1 BY-PASS Input.
1 XLR Input.
Outputs
1 Pair of Speaker Outputs.
2 Pre-Out Outputs.
1 Ø 6.35 mm headphone jack output.
1 12V Trigger Output.
Various
Optional DA100 and DA200 digital boards can be added.
View the standard for XLR connector wiring.
Our balanced MOS-FET amplifier circuits offer excellent harmonic gradients and have no memory effect. Every moment, the current is immediately delivered to your speakers. This is one of the secrets of the musicality that ATOLL amplifiers enjoy.
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Professional Reviews 90/100
Deliciously Crispy
Sound Quality
89/100
Build Quality
92/100
Features Connectivity
90/100
Value for Money
91/100
Bold dynamics and serious speaker grip define the IN300 Evolution, which reviewers at Fidelity Magazine, HomeTheaterHifi, and hi-fi+ praise for its warm, detailed balance, smooth treble, and impressive power. Its dual-mono build, versatile connectivity, and confident bass make it feel like a compact, modern integrated amp with real authority.
What Reviewers Are Saying
Pros
Delivers powerful, tightly controlled dynamics with strong bass impact and room-filling drive.
Balances warmth and detail with a smooth, non-fatiguing treble and a musically cohesive presentation.
Offers robust build quality and a flexible feature set, including digital inputs, XLR, bypass, and pre-outs.
Provides good value for money given its construction, power reserves, and musical performance.
&
Cons
The internal DAC is competent but not as refined or spacious as higher-end external converters.
The headphone output is described as compressed and less engaging than the main amplifier section.
Its slightly darker tonal balance may not be the best match for already warm speakers.
SOUND QUALITY PERFORMANCE 89/100
Reviewers describe the IN300 Evolution as warm yet detailed, with a bold, meaty presentation that stays engaging rather than analytical. It combines strong control and weight with a smooth, slightly darker balance that keeps treble easy to live with while still sounding lively and refined.
Transparency Resolution
87/100
The amp is repeatedly described as warm yet detailed, with an exceptionally quiet background and clean retrieval of detail. Reviewers also emphasize that it stays smooth and unforced rather than etched or overly clinical, so the focus is on clarity with a touch of warmth rather than microscopic spotlighting.
Tonal Balance Musicality
91/100
The tonal character is one of its biggest strengths: reviewers call it darker, meaty, lush, smooth, and neutral without sharpness. That combination makes vocals and instruments sound full and appealing, and several comments suggest long listening sessions remain enjoyable rather than fatiguing.
Dynamics
94/100
This is where the IN300 Evolution most clearly stands out. Reviewers repeatedly praise its tight control, strong power delivery, punch, and ability to keep sounding better as the volume rises, with one noting that it quickly pushed a listening room toward its limits.
Soundstage Imaging
85/100
Imaging and staging are described as liquid-smooth, enveloping, and authentic, with good space between musicians and a quiet backdrop. At the same time, one reviewer notes that a pricier DAC comparison produced a larger stage, so the presentation seems strong and believable rather than especially expansive.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
92/100
Reviewers consistently describe the IN300 Evolution as well built, with a high-quality feel and finish, robust construction, and substantial internal power supply hardware. The comments focus on solid engineering and a properly put-together amplifier rather than mere cosmetic appeal.
Features Connectivity
90/100
This is a well-equipped integrated amplifier, with five RCA inputs, an XLR input, a bypass input, and an internal DAC. Reviewers also highlight a capable headphone stage and strong flexibility overall, making it more versatile than many more stripped-back designs.
Value for Money
91/100
Reviewers describe it as remarkably worthy of the price and emphasize that it offers substantial sound quality, strong build, and useful features for the money. In a competitive price range, the consensus is that it feels like a serious component that gives a lot back for the asking price.
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Authorized dealers for Atoll Electronique IN300 Evolution
- A Tube High Fidelity — in-store — Almere, Flevoland, Netherlands (website)
- Absolute Audio - Canada — in-store — Calgary, Alberta, Canada (website)
- Akustik Strauss — in-store — Garmisch-Partenkirchen, Bayern, Germany (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- AM Audio Design — in-store — Beauvais, Hauts-de-France, France (website)
- Ambiance Concert — in-store — Angers, Pays de la Loire, France (website)
- Ars Antiqua Audio — in-store — Boadilla del Monte, Comunidad de Madrid, Spain (website)
- Art Sonique — France (website)
- Audio Alternative — online and in-store — Fort Collins, Colorado, United States (website)
- Audio Ark — in-store — Edmonton, Alberta, United States (website)
and 85 more verified dealers