The Atoll AM 400 stands out for its ability to deliver deep and defined bass, along with lively dynamics, driving even the most challenging speakers with ease. This unit offers remarkable power that goes hand in hand with rich detail, and all this is achieved without any form of acoustic pressure.



Name: Atoll AM400
Available colors: Silver and Black​​.



Product Description:

The Atoll AM400 is a high-end power amplifier that has been carefully designed with attention to every detail, to provide an optimal listening experience. The device is equipped with 8 MOS-FET transistors per channel, providing significant energy that is perfectly managed thanks to carefully designed audio stages. The connecting cables between the motherboard and the speaker outputs are made of pure, oxygen-free, silver-plated copper with Teflon insulation, which ensures excellent sound quality.

Cosmetic Description:

The front is made of 10 mm brushed aluminum.
The frame is made of 2mm steel, which contributes to the amplifier’s robust build quality and aesthetics.

Functional notes:

Equipped with linear power supplies based on toroidal transformers, symmetrical stages with discrete components, balanced XLR inputs, and RCA inputs (selectable at the rear),
It can be bridged to a monoblock amplifier, with an integrated dual mono structure that provides enormous energy gains in bridge mode, making it suitable for systems where high power requirements are required.


Power Wrms/8 Ω: 160 W
Power Wrms/4 Ω: 300 W
Power in bridge mono/8 Ω mode: 600 W
Power supply: 1050 VA
Total capacitances: 111 300 μF
Input impedance: 220 kΩ
Sensitivity: 1.7V
Signal-to-noise ratio: 100 dB
Distortion at 1 kHz: 0.005%
Bandwidth: 5 Hz – 200 kHz
Rise time: 1.5 μs
Dimensions (mm): 440×370×130
Weight: 19 kg​​​.