Atoll Electronique IN300 Evolution
The IN300 Evolution brings effortless dynamics, commanding bass grip and a warmly textured midrange to demanding loudspeakers. LowBeats praised its musical fine detail and layering, while the dual-mono 150W design supplies serious scale. Optional DAC and phono modules add system flexibility to this polished, spacious integrated amplifier.
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Deliciously Crispy
Sound Quality
93/100
Build Quality
91/100
Features Connectivity
88/100
Value for Money
89/100
Pros
Powerful, composed delivery with excellent speaker control, bass authority and effortless dynamics at high volume.
Warm, detailed and non-fatiguing sound with a layered, spacious presentation.
Flexible modular platform, with optional DAC and phono boards alongside extensive analogue connectivity.
Cons
The optional digital board adds to the purchase price rather than being standard in the base Evolution configuration.
Its warm balance and slightly recessed treble may be less suitable with already warm-sounding speakers.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 93/100
Reviewers consistently describe a powerful, warm-toned and highly musical amplifier that remains clear, composed and engaging at serious listening levels. Its presentation favours body, flow and natural ease over a ruthlessly analytical or ultra-bright balance, while retaining strong spatial insight and control.
Transparency Resolution
91/100
LowBeats hears excellent layering and analytical ability without nitpicking, while PMA describes a clean, clear sound with a warm but detailed midrange. PMA also finds fine detail slightly more subdued than with its reference amplification, and notes that the treble sits a little further back in the mix.
Tonal Balance Musicality
93/100
The reviews strongly favour the IN300 Evolution's warm, full-bodied and non-fatiguing character. LowBeats praises its physicality and warmth without muddiness, while HomeTheaterHifi found lush vocals, appealing midrange colour and treble excitement without irritation; listeners seeking an especially lean or incisive presentation may prefer a more neutral alternative.
Dynamics
95/100
Dynamic authority is a recurring strength. LowBeats reports high power reserves, effortless fine dynamics and unstrained performance at high levels, while PMA calls its dynamics effortless and HomeTheaterHifi praises its seemingly unshakable power delivery and speaker control.
Soundstage Imaging
92/100
Reviewers hear a broad, deep and convincingly layered presentation. LowBeats describes a panorama capable of handling dense musical events, and PMA found stage depth close to its reference system, though width was marginally less expansive; Fidelity also notes authentic atmosphere and ample space between musicians.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
91/100
Construction receives consistently positive comment, from LowBeats' concise praise for the solid build to HomeTheaterHifi's description of robust construction, quality components and a high-quality finish. The dual-mono architecture and separate transformers were also noted by A British Audiophile as unusually substantial engineering for this class.
Features Connectivity
88/100
The IN300 Evolution provides five RCA inputs, balanced XLR, a bypass input and a capable 6.3 mm headphone output, with reviewers also praising its flexible analogue and digital connectivity. Its modular approach allows optional DAC, Bluetooth, USB and phono-board upgrades, although the digital board is not included as standard and depends on the chosen configuration.
Value for Money
89/100
At roughly €2,850 in base form, with a higher price for the digital-equipped version, LowBeats considers the package fair. Fidelity calls it remarkably worthy of its asking price, while PMA recommends a serious audition based on how well it performed against higher-priced equipment; it is a premium-priced amplifier, but reviewers generally find its performance and facilities well justified.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
Online Reviews & Mentions
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Specifications
- Power in Wrms/channel/8Ω (230v)
- 150 W
- Power in Wrms/channel/4Ω (230v)
- 260 W
- Power supply
- 2×440 VA + 10 VA
- Total of capacitors
- 86 150 µF
- Number of inputs
- 5+1 BY-PASS
- Consumption with switch off
- 0 W
- Consumption in standby (low consumption)
- <0.5 W
- Consumption in preheating mode
- 27 W
- Consumption in operation
- 29 W – 700 W
- Input impedance
- 220 kΩ
- Maximum input level
- 3.5 Vrms / 4.7 Vrms XLR
- Sensitivity
- 450 mV
- Signal/noise ratio
- 100 dB
- Distortion at 1 kHz
- 0.05% / (10 W)
- Bandwidth
- 5 Hz – 100 kHz
- Rise time
- 2.0 µs
- Dimensions
- 440×365×103 mm
- Weight
- 16 Kg
Manufacturer's Description — Atoll Electronique
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.
Verified Dealers
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Authorized dealers for Atoll Electronique IN300 Evolution
- A Tube High Fidelity — online and 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 — online and 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 — online and in-store — Edmonton, Alberta, United States (website)
and 85 more verified dealers