THX Ultra2-certified active high-performance subwoofer with dual passive radiator, 550/1100 W / Black
  • Recommended retail price: 1'790.00 / piece
  • Brand website: Magnat
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18 hertz and no end of acoustic pressure Certified by THX®

The Cinema Ultra Sub 300-THX subwoofer also amazed the THX engineers: It is the smallest woofer so far to have been awarded THX Ultra2™ certification. Here, too, the basis for the record is the very latest technology. The 32 cm high-performance driver is optimised for a large stroke and minimal distortions. For power right from the bottom - the Cinema Ultra Sub 300-THX goes all the way down to 18 Hertz! – the subwoofer is supported by two passive radiators of the same size and appearance. Together with the newly developed 550 watt Class D power amp, they are located in a compact, extremely sturdy enclosure where the baffle alone, made of 45 mm thick MDF, effectively suppresses a lot of vibrations.

Technical details

  • Principle:
    • THX Ultra2-certified active high-performance subwoofer
    • Dual passive radiator
  • Equipment:
    • 320 mm Woofer
    • 2 x 320 mm passive radiator
  • Output power (RMS / Max.): 550 / 1100 watts
  • Frequency Response: 18 - 200Hz
  • Crossover Frequencies:
    • THX: without filtering
    • Line-Modus: 40-180 Hz
  • Phase: 0° to 180° continuously variable
  • Dimensions (WxHxD):
    • 468 x 461 x 460 mm
    • 468 x 461 x 478 mm (incl. amplifier)
  • Weight: 32,5 kg
  • Cabinet surface
    • Front: black silk matt
    • Body: textured film - anthracite

Experience all about the Magnat Cinema Ultra Serie (Microsite)

"With its Cinema Ultra set, Magnat translates its comprehensive technical expertise into a fascinating sound quality both for movie soundtracks and, what is somewhat unusual for THX sets, for music as well."

+ Very homogeneous, natural sound
+ Extremely high maximum level
+ Very precise, powerful bass response

Test review (audiovision, 04/2016)

"Hard to think of a better all-rounder. Great!"

+ Sensational macro and micro-dynamics
+ Vivid sound stage
+ Subwoofer with good level stability and depth

Conclusion: Great dynamics, but with feeling

"With the Magnat Cinema Ultra, the developers have created a loudspeaker set that is fun in the truest sende of the word. The concept and finish are consistent and coherent, from the well thought-out details like the VESA brackets to the add-on speaker that can serve as a Dolby Atmos enabled speaker and be switched over for wall or ceiling use. The front and dipole speakers play together in an amazingly harmonious way and reproduce acoustic events consistently throughout the room and beyond. The exceptionally powerful subwoofer also enables the set to not only play in an airily detached way with good microdynamics; it can also pack a powerful punch, easily reaching cinema or live concert level even in large rooms. Hard to think of a better all-rounder. Great! "

Test review (Low Beats, 04/2016)


Test result: Very good
Price/Performance: Outstanding


"Saving on looks, which don’t really count anyway, and showing off with the special effects and the balanced, differentiated fine-tuning of the sound quality. Andadded to that: micro and macro-dynamics in abundance – incredible. Incidentally, Magnat also makes music almost as crisp as a small PA."

Test review (Video, 04/2016)

"Our new reference among THX-compliant loudspeaker systems."

+ THX Ultra 2 Licence
+ Option Dolby Atmos speakers
+ Extremely powerful subwoofer


"Magnat has landed a very big hit with the new Cinema Ultra Set. This surround sound set plays at the very hightest level and lends wings to any movie. With huge dynamics and crystal-clear, undistorted reproduction, the Cinema Ultra Set is extremely enjoyable, can be operated in various constellations and can be supplemented for Dolby Atmos. It has also been awarded the seal of approval from the movie sound authority, THX, in the form of a THX Ultra 2 licence, so there's nothing to stand in the way of a perfect home cinema sound. Magnat Cinema Ultra - our new reference among THX-compliant loudspeaker systems."

Test review (Heimkino, 3-4/2016)