Krix Seismix 3 Downfiring Mk2 Active Subwoofer

By Krix


Krix Seismix 3 Mk2 Downfiring Subwoofer

  • Effortlessly delivers high impact for movies
  • Tight bass for the subtleties of music
  • Big bass performance with clarity

Bring low frequency effects to life with this tight yet powerful subwoofer. Experience movies as the director intended.



For a deep bass experience that will move the earth without costing the earth, the Seismix 3 Mk7 subwoofer is sure to rock your world.

You won’t have to sacrifice musicality for low frequency output with this tuneful speaker that will allow you to truly feel the rumble of bass with supreme clarity.

A front-firing, vented subwoofer, the Seismix 3 Mk7 features a Krix designed 275mm long throw bass driver, developed specifically for high-level low frequency reinforcement. Enhanced geometry within the magnet structure increases linear cone travel by a whopping 30 percent and allows superior driver control, while the built-in high performance class D amplifier delivers increased sound efficiency with lower power consumption.

Not only capable of effortlessly producing seriously deep bass for your home theatre or sound system, the Seismix 3 Mk7 is available in five genuine timber veneer finishes or classic black woodgrain.

For the ultimate sound experience at home, play it through Krix.


Frequency Range
22Hz-200Hz in room response
Amplifier Power
350 Watts RMS, 700 Watts maximum instantaneous power
Output 122dB maximum SPL in room response


Stereo line level RCA, Wireless audio receiver
Enclosure Type

Bass reflex, front vented

450mm high x 360mm wide x 410mm deep
Low Frequency Driver

Nominal 275mm (11”) diameter doped paper cone driver, 50mm (2″) voice coil wound on high powered Kapton former, with vented magnet assembly
Power On/Off
Signal sensing, 15 minute delay before switching to standby after no input signal
Phase Select

0º to 180º continuously variable (relative to input signal)

Low Pass Filter 

50Hz-200Hz or bypass


18kg each