18'' Subwoofer
The Beta Three® X18Bi is a subwoofer loudspeaker designed to be used with the X-Series full range loudspeakers for high performance systems. They are excellent for live, rental and portable sound reinforcement applications. The Xi Series delivers extraordinary performance at unmatched value.
  • Single 18"phase inverted subwoofer.
  • Computer aided design to optimize frequency and phase response.
  • Frequency response range: 36Hz - 2kHz (-3dB).
  • Sensitivity 97dB, MAX.SPL 121dB/127dB(PEAK).
  • Rated power 500W, 2000W (PEAK).
Transducers 1×18"LF
Frequency response(-3dB) 36Hz-2kHz
Rated power 500W (RMS) 4
1000W (MUSIC)
2000W (PEAK )
Sensitivity (1W @ 1m) 97dB
Maximum SPL (1W @ 1m) 121dB/127dB(PEAK)
Rated Impedance
Dispersion (H×V) N/A
Connector NL4×2
Dimensions (W×H×D) 750×690×630mm
Packaging Dimensions (W×H×D) 880×800×775mm
Net Weight 50.5kg(111.1 lbs)
Gross Weight 54.5kg(119.9 lbs)


User Manual

  • Previous:none
  • Next:X15i
Related Products