ScanSpeak 18W, 8542-00 MidWoofer - Classic Range - DISCONTINED

Replacement for ProAc Studio 100.

7" 8 ohm MidWoofer, High output, 42mm voice coil, highly regarded and used in many OEM and DIY speakers.

Air dried Paper/Carbon Fibre cone, Scanspeak Symmetrical Motor Design, and a low damping Coated Foam surround.

Specification:

• Resonance frequency [fs] 30 Hz
• Mechanical Q factor [Qms] 1.70
• Electrical Q factor [Qes] 0.26
• Total Q factor [Qts] 0.23
• Force factor [Bl] 7.8 Tm
• Mechanical resistance [Rms] 1.66 kg/s
• Moving mass [Mms] 15 g
• Suspension compliance [Cms] 1.88 mm/N
• Effective diaph. diameter [D] 131 mm
• Effective piston area [Sd] 135 cm²
• Equivalent volume [Vas] 47.9 l
• Sensitivity (2.83V/1m) 89 dB
• Ratio Bl/√Re 3.33 N/√W
• Ratio fs/Qts 133 Hz

Electrical Data:

• Nominal impedance [Zn] 8 Ω
• Minimum impedance [Zmin] 6.6 Ω
• Maximum impedance [Zo] 41.5 Ω
• DC resistance [Re] 5.5 Ω
• Voice coil inductance [Le] 0.2 mH

Power Handling:

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

Voice Coil and Magnet Data:

• Voice coil diameter 42 mm
• Voice coil height 19 mm
• Voice coil layers 2
• Height of gap 6 mm
• Linear excursion ± 6.5 mm
• Max mech. excursion ± 10 mm
• Unit weight 2.1 kg

Price: (1off)
£128.69 +vat +p&p