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ScanSpeak 18W, 8531G00 MidWoofer - Revelator Range

ScanSpeak 18W, 8531G00 MidWoofer - Revelator Range

Revelator midwoofers are famous for their Scanspeak Sliced Paper Cones, the slices are filled with damping glue. The effect is to reduce break-up nodes in the 7" cone, and give a midrange clarity and overall smooth frequency response which has made this top audiophile range uniquely successful.

Symmetrical Drive SD-1 Motor, Die-Cast Aluminum Chassis vented below spider.

Low Loss linear suspension, large ferrite magnet system and a high output.

Specification:

  • Resonance frequency [fs] 28 Hz
  • Mechanical Q factor [Qms] 5.10
  • Electrical Q factor [Qes] 0.39
  • Total Q factor [Qts] 0.36
  • Force factor [Bl] 6.8 Tm
  • Mechanical resistance [Rms] 0.60 kg/s
  • Moving mass [Mms] 17.5 g
  • Suspension compliance [Cms] 1.85 mm/N
  • Effective diaph. diameter [D] 138 mm
  • Effective piston area [Sd] 150 cm²
  • Equivalent volume [Vas] 58.2 l
  • Sensitivity (2.83V/1m) 87 dB
  • Ratio Bl/√Re 2.82 N/√W
  • Ratio fs/Qts 77 Hz

Electrical Data:

  • Nominal impedance [Zn] 8 Ω
  • Minimum impedance [Zmin] 6.4 Ω
  • Maximum impedance [Zo] 81.6 Ω
  • DC resistance [Re] 5.8 Ω
  • Voice coil inductance [Le] 0.35 mH

Power Handling:

  • 100h RMS noise test (IEC 17.1) 60 W
  • Long-term max power (IEC 17.3) - W

Voice Coil and Magnet Data:

  • Voice coil diameter 38 mm
  • Voice coil height 18 mm
  • Voice coil layers 2
  • Height of gap 5 mm
  • Linear excursion ± 6.5 mm
  • Max mech. excursion ± 11 mm
  • Unit weight 1.7 kg

Price: (1off)
£134.73+vat +p&p

 

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