ATOHM S250 ICE POWER Amplifier module Class-D Subwoofer

ATOHM S250 ICE POWER Amplifier module Class-D Subwoofer

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319,00 €tax incl.

265,83 € tax excl.
Including 0,30 € for green tax

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Shipping date: 19-03-2018.

Orders placed before 1pm (GMT+1) will be shipped the same day (working day).

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Specializing in the design and manufacture of high-end loudspeakers and loudspeakers, ATOHM also designs and delivers high-performance amplification modules.
Thanks totheir highly sophisticated signal processing, the ATOHM modules offer a wide range of settings and connections to suit a wide range of applications such as active subwoofer or bass reflex, active speaker, monaural power block.
Hightechnical and musical performances in minimalist congestion!/ P>

Important studies have been carried out on components, diagrams, layout topology, power supply and general construction.
Performances rhyme here with quality, musicality and reliability.

The ATOHM S250 module includes important features, including:

Output stage ICE POWER TM with a power of 220Wrms under 4ohms. Thanks to its class D technology, its excellent efficiency (80%) and its high damping factor make it compatible with any load impedance greater than or equal to 3 ohms. Great musicality and generous power under a very small footprint!

Section peak limiter with 2 levels 0 and -1dB with "soft clipping". When clipped (excess input level) a sinusoidal signal transforms into a square signal containing an infinity of odd harmonics(distortion).
In a subwoofer application, this distortion distorts the sound and makes it possible to locate the box perfectly because it contains high frequencies.
The clipping limiter associated with the low-pass filter stages (variable or LFE) reduces or eliminates clipping-related distortions.

The technoloX-gard ™ bypasses the disadvantages of a conventional subsonic filter by ensuring that the loudspeaker excursion never exceeds an absolute limit (risk of breakage, very high distortion) whatever the amplitude of the input signal .
This technologyology preserves the signal and its phase (unlike a subsonic filter). The extreme bass is more faithful, the connection with the main speakers more homogeneous and the loudspeaker protected.

It isit is possible to connect the module via pre-out / subwoofer outputs of a preamplifier / processor or directly to the speaker outputs (in parallel) of a conventional stereo amplifier.

Thedule S250 can be bypassed to a high-performance "HiFi" (mono block) broadband use via a simple internal switch. In this case, only the gain setting remains active. This can be used for the production of monitoring speakers, for example.


  • RMS Power: 220Wrms
  • Impedance: 4 - 16 Ohm
  • Frequency response (direct mode): 20Hz - -20kHz (0.2dB) / 1.5Hz - 75kHz (-3dB)
  • Signal-to-noise ratio (in direct mode): 115dB
  • Signal-to-noise ratio (in subwoofer mode): 96db
  • Damping factor (8 ohms, 100Hz): sup 1000
  • THD + N: inf. to 0.1%
  • Variable low-pass filter: 38 to 200Hz, 24dB / octave (disengageable LFE)
  • Phase Inverter: 0 - 180 °
  • Supply voltage: 230V / 50Hz
  • Power consumption: 320W Max.
  • 0.9kg
  • Hp cable and power supply included

Atohm s250
Atohm s250

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