Atoll AM400 Signature Black
Atoll
Atoll je francouzská značka hi-fi elektroniky, která nabízí vynikající poměr ceny a výkonu. Její zesilovače, streamery a DAC převodníky spojují poctivou analogovou konstrukci s precizním ručním zpracováním v Normandii. Díky své spolehlivosti a muzikálnímu projevu patří Atoll k nejoblíbenějším výrobcům ve střední třídě audio techniky.
The AM400 Evolution amplifier offers improved audio performance. Its electronic stages have been reworked to make the device insensitive to capacitive loads.
The AM400 Evolution amplifier uses four pairs of MOSFET transistors per channel. Its discrete electronics have been redesigned to make the device insensitive to capacitive loads. Power is increased to 170 W / 8 Ω, and the signal-to-noise ratio to 105 dB. The high-quality MKP crossover capacitors are shielded, helping to preserve sound fidelity. The motherboard cables to the speaker outputs are pure, oxygen-free, silver-plated copper with Teflon insulation. The low series resistance filter capacitors are custom-made by a world-renowned specialist.
- 10 mm brushed, micro-blasted, and anodised aluminium front panel with high-precision engraving.
- 2 mm steel chassis.
Machined aluminium heatsinks. - 1050 VA toroidal transformer.
- High-quality, shielded MKP coupling capacitors.
- Custom-made printed circuit board with nickel/gold finish.
- Purely balanced XLR signal processing.
- Bipolar transistor and LED current sources ensure perfect voltage stability.
- Redesigned audio stages to make the device insensitive to capacitive loads.
- Improved signal-to-noise ratio.
- High-quality RCA input/output connectors, screwed to the chassis.
- Tellurium copper speaker outputs.
- 12V Trigger input.
Audio Inputs
1 Stereo XLR Input.
1 Stereo Line Input.
1 12V Trigger Input.
Audio Outputs
1 Stereo Line Output.
Tellurium Copper Speaker Outputs.
The tellurium copper speaker output plugs have been selected for their ability to transmit all the energy and micro-details of the electrical signal without alteration. The polypropylene film structure link capacitors have been selected by listening in the high-end series of the biggest manufacturers. In mono bridged mode the energy gain is colossal: this operation will be suitable in all systems where high power is required. The differential structure scheme allows this transformation to be carried out without altering the nuances of the musicality, the gain in “sound material” makes listening even more realistic.
Device Installation Scheme:
The AM400 Evolution model is available in black or natural aluminium versions:
| Power Wrms/channel/8Ω | 170 W |
|---|---|
| Power Wrms/channel/4Ω | 320 W |
| Power in bridged mono mode/8Ω | 600 W |
| Power supply | 1050 VA |
| Total capacitance | 111 300 μF |
| Number of stereo inputs | 1 RCA + 1 XLR |
| Power consumption with switch off | 0 W |
| Power consumption in operation | 14 W – 800 W |
| Input impedance | 220 kΩ |
| Sensitivity | 1,7 V |
| Signal-to-noise ratio | 105 dB |
| Distortion at 1 kHz | 0.005% |
| Bandwidth | 5 Hz – 200 kHz |
| Rise time | 1,5 μs |
| Dimensions | 440 x 370 x 130 mm |
| Weight | 19 kg |
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