ScanSpeak 18W, 8434G00 MidWoofer - Discovery Range

A 7" MidWoofer (8 ohms), High output, excellent midrange performance.

The Discovery series offer traditional design, superior sound, solid construction, and various variants. Combining these elements - plus a wealth of technical features and finesses - it gives customers the possibility of acquiring a tailor-made Scan-Speak solution with very good performance at a reasonably low price point.

Aluminium Ring Magnet System. Coated Glass Fibre cone, die-cast aluminium chassis (vented below spider), and a low-damping SBR Rubber surround.

Specification:

• Resonance frequency [fs] 50 Hz
• Mechanical Q factor [Qms] 7.58
• Electrical Q factor [Qes] 0.46
• Total Q factor [Qts] 0.43
• Force factor [Bl] 7.2 Tm
• Mechanical resistance [Rms] 0.57 kg/s
• Moving mass [Mms] 13.7 g
• Suspension compliance [Cms] 0.74 mm/N
• Effective diaph. diameter [D] 132 mm
• Effective piston area [Sd] 137 cm²
• Equivalent volume [Vas] 19.5 l
• Sensitivity (2.83V/1m) 88.7 dB
• Ratio Bl/√Re 3.05 N/√W
• Ratio fs/Qts 115 Hz

Electrical Data:

• Nominal impedance [Zn] 8 Ω
• Minimum impedance [Zmin] 6.7 Ω
• Maximum impedance [Zo] 97.9 Ω
• DC resistance [Re] 5.6 Ω
• Voice coil inductance [Le] 0.55 mH

Power Handling:

• 100h RMS noise test (IEC 17.1) 55 W
• Long-term max power (IEC 17.3) 170 W

Voice Coil and Magnet Data:

• Voice coil diameter 32 mm
• Voice coil height 13.4 mm
• Voice coil layers 2
• Height of gap 5 mm
• Linear excursion ± 4.2 mm
• Max mech. excursion ± 8 mm
• Unit weight 1.3 kg

PRICE (1 off)
£57.57 +vat +p&p