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).

  • 8 mm brushed aluminium front.
  • 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.
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Thanks to its RCA and XLR input, the power amplifier
AM300 pairs easily with any hi-fi ATOLL pre-amplifier or ATOLL home cinema.


Audio inputs
1 Stereo line input.
1 Stereo XLR input.

Audio outputs
1 Stereo line output.
1 Stereo loudspeaker output.

1 Trigger input (12V).
1 Bridged-mono switch.
1 Line/XLR switch.

View the standard for wiring XLR connectors.


Power Wrms/channel/8Ω (230v): 150 W
Power Wrms/channel/4Ω (230v): 280 W
Power in bridged mono/8Ω mode: 500 W
Power supply: 2×440 VA
Total of capacitors: 83 300 μF
Number of stereo inputs: 1 RCA + 1 XLR
Bandwidth: 5 Hz – 200 kHz
Rising time: 1,5 μs
Input impedance: 220 kΩ
Sensitivity: 1,7 V
Signal/Noise ratio: 100 dB
Distortion at 1 kHz: 0,005%
Dimensions: 440×351×103 mm
Weight: 16 Kg


The AM300 model is available in black or natural aluminium:

Black anodized brushed aluminum finish.
Silver anodized brushed aluminum finish.