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Atoll MA100: Power amplifier known for its distinct sound, delivering rich, deep bass.

Atoll MA100
Atoll MA100

The Atoll MA100 is a two-channel power amplifier designed using a dual mono architecture, entirely composed of discrete components. This design ensures excellent separation between stereo channels and a broad dynamic sound range. The output stages utilize carefully selected pairs of field-effect transistors, which deliver substantial current to the load and achieve a high signal amplification rate. The amplifier’s power supply features a custom toroidal transformer rated at 170 VA, providing ample energy reserves for the device. Additionally, the power supply includes a rectifier with high-speed diodes and filter capacitors totaling 16,600 μF.

 

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Atoll MA100 features a compact design, making it ideal for use in small stereo systems and multi-room setups. The device is housed in a robust metal casing with a 1.5 mm thick steel chassis, complemented by a 4 mm thick aluminum front panel. It includes a power button, seamlessly integrated into the company logo, along with two LEDs that indicate the amplifier’s operating modes.

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The Atoll MA100 features screw terminals on its rear panel for connecting two speakers, along with RCA input jacks. All connectors are gold-plated to ensure a secure connection. This amplifier delivers an output power of 2 x 60 W per channel at an 8-ohm load and 2 x 80 W when connected to 4-ohm speakers. Additionally, the Atoll MA100 can be configured to operate in monophonic (bridged) mode, resulting in a proportional increase in output power. It also includes a 12-volt control trigger input, allowing for remote activation via commands from other devices within the system.

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The Atoll MA100 amplifier is known for its distinctive sound profile, featuring deep bass, a lush midrange, and high frequencies that are extended yet not overly harsh. This amplifier is ideally suited for pairing with premium full-range bookshelf speakers from top European brands.

Atoll MA100 Specifications

  • Number of channels 2
  • Output power 60 W per channel (6 Ohm), 80 W per channel (4 Ohm)
  • Input sensitivity / impedance 1.68 V / 110 kOhm
  • Frequency range 5 Hz – 200 kHz
  • Signal-to-noise ratio 100 dB
  • Output signal slew rate 2 μs
  • Distortion factor 0.05%
  • Power supply power 170 VA
  • Dimensions (WxHxD) 320x83x230 mm
  • Weight 4 kg

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