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ScanSpeak 18W, 8535-00 MidWoofer - Classic Range

ScanSpeak 18W, 8535-00 MidWoofer - Classic Range

This driver features the Symmetric Drive (SD-1) concept with copper in the magnet system was invented by Scan-Speak. High-quality magnet system design has thus been a key feature of Scan-Speak design since the companys inception. The Classic woofers are highly praised, and are used in some of the worlds most exceptional high-end Loudspeakers. Some feature Kevlar cones, others have the innovative Carbon fibre paper cones.

Specification:

  • Resonance frequency [fs] 26 Hz
  • Mechanical Q factor [Qms] 2.50
  • Electrical Q factor [Qes] 0.45
  • Total Q factor [Qts] 0.38
  • Force factor [Bl] 5.7 Tm
  • Mechanical resistance [Rms] 1.01 kg/s
  • Moving mass [Mms] 15.5 g
  • Compliance [Cms] 2.42 mm/N
  • Effective diaph. diameter [D] 136 mm
  • Effective piston area [Sd] 145 cm²
  • Equivalent volume [Vas] 71.2 l
  • Sensitivity (2.83V/1m) 86.5 dB
  • Ratio Bl/√Re 2.37 N/√W
  • Ratio fs/Qts 68 Hz

Electrical Data:

  • Voice Coil & Magnet Data
  • Nominal impedance [Zn] 8 Ω
  • Minimum impedance [Zmin] 6.8 Ω
  • Maximum impedance [Zo] 38.0 Ω
  • DC resistance [Re] 5.8 Ω
  • Voice coil inductance [Le] 0.3 mH

Power Handling:

  • 100h RMS noise test (IEC 17.1) 70 W
  • Long-term max power (IEC 17.3) 150 W

Voice Coil & Magnet Data:

  • Voice coil diameter 38 mm
  • Voice coil height 15 mm
  • Voice coil layers 2
  • Height of gap 5 mm
  • Linear excursion ± 5 mm
  • Max mech. excursion ± 10 mm
  • Unit weight 1.1 kg

Price: (1off)
£110.04 +vat +p&p

This driver has now been superceded by the 18W,8535-01 - for details on this please click  HERE

 

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