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.
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.
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.
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
