Seismix 5

Krix Seismix 5 Subwoofer

The Seismix 5 active subwoofer is intended to compliment existing hi-fi and home theatre systems, enabling enhancement of low frequency performance. With styling identical to the Seismix 7 only smaller, the Seismix 5 offers a single 12 inch cast alloy bass driver and 200 watt inbuilt amplifier. It is versatile and compatible with a wide variety of small to large sized, sealed or vented, main and satellite speakers.

  • 200 watt low noise, mosfet amplifier w/ clipping protection
  • Speaker level & line level input connection
  • Electronic filtering
    • high pass line level output
    • adjustable 3rd order low pass from 45Hz to 95Hz
  • Levels of protection
    • mains fuse
    • power supply fuses for internal power amplifier
    • inputs protected against short circuit & incorrect connection
    • limiting circuit preventing main amplifier clipping & severe distortion
    • clipping/limiter LED indicator


Frequency Range: 16Hz - 150Hz (-6dB) in room response
Bass Driver: Nominal 12" (305mm) diameter paper cone driver developed for high level, low frequency reinforcement & large linear cone travel
Amplifier Power: 400 watts RMS into the nominal 4 ohm driver
Maximum instantaneous power 800 watts
Amplifier S/N Ratio: >70 dB
Distortion - Input to Speaker: <0.1% - @ 80 watts RMS
Line Level Inputs: Left Input (mono)
• Lo 900mV RMS for maximum output
• Hi 100mV RMS
Left + Right Input (stereo)
• Lo 450mV RMS for maximum output
• Hi 50mV RMS
Output: 122 dB maximum SPL in room response
Auto Power On/Off: 15 minute delay before switching to standby after no input signal
Phase Select: 0 or 180 (relative to input signal)
Enclosure Type: Bass reflex, front vented
Dimensions (HxWxD): 460mm x 395mm x 440mm
Material: 19mm & 25mm MDF
Finish: Vinyl or laquered timber veneer
Weight: 30kg