Atoll Evolution Integrated Amplifier - Made in France
Overview
The IN800 EVO is our ultimate integrated amplifier/preamplifier. It reproduces the musical message in its full richness, combining energy with refinement. Its electronic stages, featuring a differential architecture, deliver substantial power—capable to drive even the most prestigious loudspeakers. Mechanically, the chassis is built from 2 mm steel, while the front panel is 12 mm aluminium that has been brushed, bead-blasted, and anodised, with high-precision engraving. The side-mounted heatsinks are machined from solid aluminium blocks, designed to absorb vibrations and ensure optimal thermal dissipation.
Features
- 12 mm brushed, bead-blasted, and anodised aluminium front panel with high-precision engraving.
- Machined aluminium heatsink and knobs.
- 2 mm steel chassis.
- Toroidal transformers: 1200 VA (audio) mechanically decoupled + 1.6 VA (control logic) + 25 VA (digital control)
- + 7 VA (analogue control).
- High-quality shielded MKP coupling capacitors.
- Integrated dual mono structure:
- – Separate windings for left and right channels.
- – High-precision MUSE attenuators: One per channel with switched resistors.
- Bipolar transistor input stages.
- Bipolar transistor and LED current sources for perfect stability.
- Darlington transistor driver stages.
- Audio stages with a perfectly symmetrical structure and very low negative feedback.
- MOS-FET transistor power stages rigorously matched (16 per channel).
- Internal speakers output wiring using Absolue Créations cable.
- Active thermal protection.
- High-resolution TFT display (480×1280) with adjustable brightness.
- Precise balance control with memory function.
- Input renaming capability.
- Selectable standby mode: Low power or warm-up.
- DAC and MM or MC phono boards available as options.
- Aluminium remote control included as standard.
CONNECTIVITY
Inputs
- 2 XLR Inputs
- 3 LINE RCA Inputs + 1 TAPE RCA Input/Output
- – Possibility of configuring BY-PASS
- 1 RCA input and 1 XLR input
Outputs
- PRE-OUT XLR output
- PRE-OUT RCA output
- Stereo speaker outputs
- Subwoofer ground terminals
Miscellaneous
12 V Trigger Input/Output
——–
Optional DA800 and PHONO P800 DAC boards available.
USER INTERFACE
Front-panel controls:
- – Power on/off.
- – Source selection.
- – Volume control.
- – Balance control.
- – Display settings.
- – Low-power mode selection.
High-resolution colour TFT display.
Aluminium remote control included as standard.
Specifications
- 2×350 Wrms / 8Ω
- 2×550 Wrms / 4Ω
- Total capacitors: 128 000 µF
- Bandwidth (-3 dB): 5 Hz – 100 kHz
- Rising time: 2 µs
- Input impedance: 220 kΩ
- Sensitivity: 400mV
- Signal-to-noise ratio: 100 dB
- Distortion rate at 1 kHz: 0.05%
- Standby consumption (low consumption): < 0.5 W
- Dimensions: 443×440×147 mm
- Weight: 27 kg
Documentation







