ScanSpeak 18W, 8535-01 MidWoofer - Classic Range

This unit is an improved version of the highly praised 18W/8535-00 mid-woofer, where a new aluminium chassis and an updated cone, as well as a few other details, are introduced. These updates improve mechanical stability and sound performance. High-quality magnet system design with a patented Symmetric Drive(SD-1) continues to be a key feature.

This is the replacement for the 18W, 8535-00 Driver.

Specification:

• Resonance frequency [fs] 25 Hz
• Mechanical Q factor [Qms] 2.10
• Electrical Q factor [Qes] 0.46
• Total Q factor [Qts] 0.38
• Force factor [Bl] 5.9 Tm
• Mechanical resistance [Rms] 1.35 kg/s
• Moving mass [Mms] 17.2 g
• Compliance [Cms] 2.30 mm/N
• Effective diaph. diameter [D] 136 mm
• Effective piston area [Sd] 145 cm²
• Equivalent volume [Vas] 68.9 l
• Sensitivity (2.83V/1m) 87.2 dB
• Ratio Bl/√Re 2.44 N/√W
• Ratio fs/Qts 67.4 Hz

Electrical Data:

• Nominal impedance [Zn] 8 Ω
• Minimum impedance [Zmin] 6.8 Ω
• Maximum impedance [Zo] 32.0 Ω
• DC resistance [Re] 5.85 Ω
• Voice coil inductance [Le] 0.33 mH

Power Handling:

• 100h RMS noise test (IEC 17.1) 70 W
• Long-term max power (IEC 17.3) 190 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 (1 off)
£137.15 +vat +p&p