Magnat AEH 400-ATM

With defined dispersion characteristics for perfect Dolby Atmos surround sound

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Data sheet

Unit of MeasurementPair

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Dolby also imposes extremely strict requirements to ensure that the demanding multi-channel procedure can generate perfect reproduction. The dispersion characteristics and position of the add-on loudspeakers are important. A subwoofer with an integrated tweeter, a so-called coaxial driver, is the best option here. The Cinema Ultra AEH 400-ATM is a coax with a 13 cm bass plus 25 mm tweeter cone and is a perfect fit, in terms of both external appearance and installation depth, on top of an LCR 100-THX – which is also where it should be according to the Dolby guidelines. For those cases where home cinema fans prefer to mount the excellent sounding AEH 400-ATM on the wall or ceiling, we have, instead of the frequency response optimised for ceiling reflection as stipulated by Dolby, included a second crossover for linear reproduction which can be activated via a toggle switch.



Technical Data



Dolby Atmos-enabled high-performance

add-on loudspeaker with direct-radiating mode


1 x 5,25" coaxial speaker

Power Handling (RMS / Max.)50 / 120 watts
Sensitivity (2.8V/1m)89 dB
Impedance6 ohms
Frequency Response

45 37.000 Hz

Crossover Frequencies

Atmos-Modus: 3.200 Hz

Direct-Modus: 3.300 Hz
Recommended Amplifier Output20 - 120 watts
Dimensions (WxHxD)280 x 150 x 188 mm
Weight3.7 kg
Cabinet surface

Front: black silk matt /

body: textured film - anthracite





  • The Cinema Ultra AEH 400-ATM is the ideal addition to every surround sound system intended to reproduce the new multi-channel process like Dolby Atmos
  • Sound characteristics that can be switched over to direct