Specifications
Nominal diameter 320 mm (12.0 in)
Nominal impedance 8 Ω
Minimum impedance 6.0 Ω
Nominal power handling
1 700 W
Continuous power
handling
2 1400 W
Sensitivity (1W/1m)3 98.0 dB
Frequency range 50 - 3000 Hz
Voice coil diameter 88 mm (3.5 in)
Winding material Aluminium
Former material Glass Fibre
Winding depth 21 mm (0.85 in)
Magnetic gap depth 10 mm (0.4 in)
Flux density 1.15 T
Design
Surround shape Triple Roll
Cone shape Exponential
Magnet material Neodymium Inside
Slug
Design
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
Parameters
4
Fs 51 Hz
Re 5.0 Ω
Qes 0.29
Qms 5.0
Qts 0.27
Vas 52.0 dm3 (1.84 ft3)
Sd 522.0 cm2 (80.9 in
2)
η₀ 2.3 %
Xmax 8.0 mm
Xvar 9.5 mm
Mms 71 g
Bl 19.9 Txm
Parameters
Le 1.3 mH
EBP 175 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 140 mm (5.51 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)
Service Kit
RCK12NDL88
