Specifications

• Nominal diameter 320 mm (12.0 in)
• Nominal impedance 8 ohms
• Minimum impedance 6.7 ohms
• Nominal power handling 350 W
• Continuous power handling 700 W
• Sensitivity (1W/1m) 99.0 dB
• Frequency range 50 - 3500 Hz
• Voice coil diameter 76 mm (3.0 in)
• Winding material Aluminium
• Former material Glass Fibre
• Winding depth 18 mm (0.68 in)
• Magnetic gap depth 10 mm (0.4 in)
• Flux density 1.15 T

Design

• Surround shape Double Roll
• Cone shape Exponential
• Magnet material Neodymium Inside Slug
• Spider Single
• Pole design Straight Pole
• Recommended enclosure 40.0 dm3 (1.41 ft3)
• Recommended tuning 70 Hz

Parameters

• Fs 49 Hz
• Re 6.0 ohms
• Qes 0.26
• Qms 2.5
• Qts 0.25
• Vas 91.0 dm3 (3.2 ft3)
• Sd 522.0 cm2 (80.9 in2)
• Reference efficiency 4.1 %
• Xmax 4.0 mm
• Xvar 5.5 mm
• Mms 43 g
• Bl 17.3 Txm
• Le 1.5 mH
• EBP 188 Hz

Mounting and Shipping Info

• Overall diameter 315 mm (12.4 in)
• Bolt circle diameter 296 mm (11.6 in)
• Baffle cutout diameter 282.0 mm (11.1 in)
• Depth 144 mm (5.7 in)
• Flange and gasket thickness 13 mm (0.5 in)
• Net weight 3.2 kg (7.0 lb)
• Shipping weight 3.9 kg (8.6 lb)
• Shipping box 380x380x170 mm (15x15x6.7 in)