B&C 12NDL88 - 12" 700W 4 Ohm Loudspeaker

Specifications

• Nominal diameter 320 mm (12.0 in)
• Nominal impedance 4 ohms
• Minimum impedance 3.8 ohms
• Nominal power handling1 700 W
• Continuous power
• handling2 1400 W
• Sensitivity (1W/1m)3 97.0 dB
• Frequency range 50 - 3000 Hz
• Voice coil diameter 88 mm (3.5 in)
• Winding material Aluminium
• Former material Glass Fibre
• Winding depth 21.5 mm (0.85 in)
• Magnetic gap depth 10 mm (0.4 in)
• Flux density 1.05 T

Design

• Surround shape Triple Roll
• Cone shape Exponential
• Magnet material Neodymium Inside Slug
• Spider Double Silicone
• Pole design T-Pole
• Woofer cone treatment WP Waterproof Front Side
• Recommended enclosure 40.0 dm3 (1.41 ft3)
• Recommended tuning 65 Hz

Thiele and Small parameters:  Need some help? Read our quick guide to TS Params.

• Fs 48 Hz
• Re 3.1 ohms
• Qes 0.25
• Qms 6.8
• Qts 0.24
• Vas 57.0 dm3 (1.84 ft3)
• Sd 522.0 cm2 (80.9 in2)
• Reference efficiency 2.5 %
• Xmax 8.0 mm
• Xvar 11 mm
• Mms 73.6 g
• Bl 16.6 Txm
• Le 0.9 mH
• EBP 192 Hz

Mounting And Shipping Info

• Overall diameter 315 mm (12.4 in)
• Bolt circle diameter 298 mm (11.73 in)
• Baffle cutout diameter 282.0 mm (11.1 in)
• Depth 150 mm (5.91 in)
• Flange and gasket thickness 13 mm (0.51 in)
• Air volume occupied by driver 2.5 dm3 (0.08 ft3)
• Net weight 3.9 kg (8.6 lb)
• Shipping units 1
• Shipping weight 4.5 kg (9.92 lb)
• Shipping box 340x340x170 mm (13.4x13.4x6.7 in)