Friday, December 30, 2011

SPH-255 HiFi-Woofer - 100900


HiFi bass speaker, 120WMAX, 8Ω

An all-round speaker of high power capability with voice coil above average and long-term stable rubber surround, a powerful bass reproduction of high efficiency.
Technical Specification

  • Impedance (Z) : 8Ω
  • Resonant frequency (fs): 23Hz
  • Max. frequency range : f3-3,000Hz
  • Rec. crossover freq. (fmax.): 2,000Hz
  • Music power : 120WMAX
  • Power rating (P) : 60WRMS
  • SPL (1W/1m): 91dB
  • Suspension compl. (Cms): 1.19mm/N
  • Moving mass (Mms): 42g
  • Mech. resistance (Rms): 2.1kg/s
  • Mech. Q factor (Qms): 2.86
  • Electr. Q factor (Qes): 0.26
  • Total Q factor (Qts): 0.24
  • Equivalent volume (Vas): 205 l
  • DC resistance (Re): 6.1Ω
  • Voice coil induct. (Le): 1.5mH
  • Voice coil diameter: 50mm
  • Voice coil former: aluminium
  • Voice coil winding height: 17mm
  • Air gap height: 8mm
  • Linear excursion (XMAX): ±4.5mm
  • Eff. cone area (Sd): 350cm2
  • Volume displacement (Vd): 157.5cm3
  • Force factor (BxL): 11.7Tm
  • Reference efficiency (No): 0.9%
  • Magnet diameter: 140mm
  • Magnet weight : 1.1kg
  • Mounting cutout : Ø 235mm
  • Mounting depth : 128mm
  • Dimensions: Ø 257mm
  • Weight : 3.22kg
  • Rec. net cabinet volume:
  • Closed: 30 l
  • Bass-reflex: 55 l


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