ATOLL AM300 Signature Amplifier

The power amplifier AM300 block is suitable for most HIFI or audio-video applications. Very scalable, it can be used alone or in bi-amplification. It can be paired with an ATOLL-integrated amplifier or preamplifier. It is bridgeable in a monoblock via an internal switch. It is equipped as standard with a 12V Trigger input (direct ignition in conjunction with a preamp).

The ATOLL AM300 power amplifier is a high-performance stereo power amplifier designed to deliver outstanding sound quality and plenty of power to drive even the most demanding speakers. With a power output of up to 2x150W into 8 ohms, it is a great choice for music lovers who want to experience their favorite music in all its glory.


  • 8 mm brushed aluminium front.
  • Power of 2×150 Wrms / 8Ω.
  • 2 toroidal transformers of 440 VA each.
  • Filtering capacitors: 8×6800 μF high quality, low ESR specific for ATOLL.
  • MOS-FET triple push-pull power stage.
  • 6 MOS-FET power transistors per channel.
  • Balanced XLR and RCA line inputs.
  • Balanced discrete component audio stages.
  • Integral dual mono architecture.
  • Polarization of output stages in class A/B.
  • Double-sided circuit boards with nickel/gold finish.
  • Mono block bridgeable.
  • 12V Trigger input.

  • Power Wrms/channel/8 Ω: 150 W
  • Power Wrms/channel/4 Ω: 280 W
  • Power in bridged mono/8 Ω mode: 500 W
  • Power supply: 2×440 VA
  • Total of capacitors: 83 300 μF
  • Number of stereo inputs: 1 RCA + 1 XLR
  • Input impedance: 220 kΩ
  • Sensitivity: 1,7 V
  • Signal/Noise ratio: 100 dB
  • Distortion at 1 kHz: 0,005%
  • Bandwidth: 5 Hz – 200 kHz
  • Rising time: 1,5 μs
  • Dimensions: 440×351×103 mm
  • Weight: 16 Kg
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