Monacor SPH-220HQ

HiFi woofer

Manufacturer parameters
  • Diameter: 8" (20cm)
  • Power (W): 100W RMS/180W Max.
  • Impedance (Ohm): 8 Ohm
  • Sensitivity (db/1W): 90
  • Qts: 0,40
  • Price: 91

  • Diaphragm: coated paper
  • Basket: diecast
  • Magnet: 100mm, 550g, single
Measured parameters
  • Fs = 34.29 Hz
  • Re = 6.10 ohms
  • Le = 859,964uH
  • R2 = 5.02 ohms
  • Qt = 0.47
  • Qes = 0.54
  • Qms = 3.33
  • Mms = 32.77 grams
  • Rms = 2.121792 kg/s
  • Cms = 0.000657 m/N
  • Vas = 44.30 liters
  • Sd= 219.04 cm^2
  • Bl = 8.915579 Tm
  • ETA = 0.32 %
  • Lp(2.83V/1m) = 88.29 dB


Nice woofer ideal for 3-way speaker systems. It has some features characteristic for highend HiFi woofers, light diaphragm with high compliance suspension, drilled rear pole piece and rear ventillated centering spider, which leads to very low mechanical loss. So for not a lot of money you get a very high quality woofer with very linear frequency response and reasonable sensitivity.