the kms290 - specification
enclosure type
  2-way twin ported reflex
frequency response
  60Hz-20kHz
sensitivity
  89dB spl (2.73v 1m)
recommended power
  30-100W
nominal impedance
  6 ohms (4 ohms min)
drive unit 1
  100mm/4" titanium cone
drive unit 2
  tioxid inverted dome tweeter
drive unit 3
  100mm/4" titanium cone
crossover frequency
  4.2kHz
dimensions
  w188 h490 d320 (mm)
effective volume
  11.8 litres
weight
  11.8kg