Dibieisi C8004

Bass speaker

Manufacturer parameters
  • Diameter: 20cm (8")
  • Power (W): 150 RMS
  • Impedance (Ohm): 4
  • Sensitivity (db/1W): 91
  • Qts: -
  • Price: 10€

  • Diaphragm: coated paper
  • Basket: sheet steel
  • Magnet: 24oz (680g), 110mm Diameter
Measured parameters
  • Fs = 58.90 Hz
  • Re = 3.40 ohms[dc]
  • Le = 535.6 uH
  • Qt = 1.22
  • Qes = 1.49
  • Qms = 6.72
  • Mms = 27.84 grams
  • Rms = 1.533785 kg/s
  • Cms = 0.000262 m/N
  • Vas = 14.89 liters
  • Sd= 201.06 cm^2
  • Bl = 4.852810 Tm
  • ETA = 0.20 %
  • Lp(2.83V/1m) = 88.76 dB (84,9dB/1W)



Recommended enclosure:
trash can


For me, dibeisi is one of the worst loudspeaker manufacturers on the world and this piece of garbage just proves me right. It looks good on the outside, nice rubber surround and solid motor. BUT - very thin cone has no tendency to keep its shape and the suspension is very stiff for a cone that light. Manufacturer may not know this, but this combination is not very good for a woofer - it will push the resonance frequency too high. 60Hz is way too much for a woofer. Together with very low Bl it leads to gigantic Qts, which will make this driver unsuitable not only for bass-reflex, but also for a sealed enclosure. I don't recommend buying this junk, there is no use to it whatsoever.

predná strana zadná strana bok Diaphragm