Specification
Nominal Diameter
200 (8) mm (in)
8 Ohm
Nominal Impedance (1)
Minimum Impedence
Nominal Power Handling (2)
Continuous Power Handling (3)
Sensitivity (1W/1m) (4)
Frequency Range
6.6 Ohm
200 W
400 W
94 dB
65 -3000 Hz
51 (2) mm (in)
Copper
Voice Coil Diameter
Winding Material
Former Material
Kapton
Winding Depth
Magnetic Gap Depth
Flux Density
16.5 (0.65) mm (in)
8 (5/16) mm (in)
1.05 T
Thiele & Small Parameters
Fs
Re
Qes
Qms
Qts
66 Hz
5.3 Ohm
0.41
3.6
0.37
Vas
Sd
14 (0.5) dm3 (ft3)
220 (34.1) cm2 (in2)
1 %
Eta Zero
Xmax
Xvar
Mms
Bl
+/- 7 mm
+/- 7 mm
28 g
12.4 Txm
Le
0.5 mH
Mounting and Shipping Info
Woofer
8NDL51
Overall Diameter
Bolt Circle Diameter
Baffle Cutout Diameter
Depth
225 mm (8.8 in)
210 mm (8.3 in)
187 mm (7.4 in)
90 mm (3.5 in)
11 mm (0.4 in)
1.8 kg (4 lb)
50 mm (2 in) copper voice coil
70 – 3000 Hz response
94 dB sensitivity
Neodymium magnet allows a very light yet powerful motor assembly
Shorting copper cap for extended HF response
Flange and Gasket Thickness
Net Weight
400 W continuous program power capacity
Ventilated voice coil gap for reduced power compression
Shipping Weight
Shipping Box
2.2 kg (4.8 lb)
300x160x180 mm
(11.8x6.3x7.1 in)
1
For different impedances, please ask.
2
2 hours test made with continuous pink noise signal (6 dB crest factor).
Power calculated on rated minimum impedance.
Power on Continuous Program is defined as 3 dB greater than the
Nominal rating.
3
4
Applied RMS Voltage is set to 2.83V for 8 ohms or 2.0V for 4 ohms
Nominal Impedance
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