Specifications

• Nominal diameter 320 mm (12.0 in)
• Nominal impedance 4 ohms
• Nominal power handling 350 W
• Continuous power handling 700 W
• Sensitivity (1W/1m) 98.5 dB
• Frequency range 45 - 3000 Hz
• Voice coil diameter 76 mm (3.0 in)
• Winding material Copper
• Former material Glass Fibre
• Winding depth 17 mm (0.67 in)
• Magnetic gap depth 11 mm (0.43 in)

Design

• Surround shape Triple Roll
• Cone shape Exponential
• Magnet material Neodymium Inside Slug
• Spider Single
• Pole design Straight Pole
• Woofer cone treatment WP Waterproof Front Side
• Recommended enclosure 40.0 dm3 (1.41 ft3)
• Recommended tuning 60 Hz

Parameters

• Fs 48 Hz
• Vas 59.0 dm3 (2.1 ft3)
• Sd 522.0 cm2 (80.9 in2)
• Reference efficiency 2.9 %
• Xmax 6.0 mm
• Xvar 8.5 mm
• Mms 70 g

Mounting and Shipping Info

• Overall diameter 313 mm (12.32 in)
• Bolt circle diameter 299 mm (11.77 in)
• Baffle cutout diameter 282.0 mm (11.1 in)
• Depth 142 mm (5.59 in)
• Flange and gasket thickness 9 mm (0.35 in)
• Air volume occupied by driver 2.3 dm3 (0.08 ft3)
• Net weight 3.0 kg (6.6 lb)
• Shipping weight 3.5 kg (7.7 lb)
• Shipping box 340x340x170 mm (13.4x13.4x6.7 in)