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Unique to B&C, a complete lineup of high sensitivity and power handling 4\' frame transducers. These high technology products are made with our famously critical quality control, allowing new compact loudspeaker designs with appropriately scaled performance. For midrange applications our 4NDF34 offers 92dB sensitivity and 110 - 8000Hz frequency response.
200 W continuous program power capacity
33 mm (1.3 in) copper voice coil
110 - 8000 Hz response
92 dB sensitivity
Neodymium magnet allows a very light yet powerful motor assembly
Specifications:
Nominal diameter
100 mm (4.0 in)
Nominal impedance
8 ohms
Minimum impedance
6.4 ohms
Nominal power handling
100 W
Continuous power handling
200 W
Sensitivity (1W/1m)
92.0 dB
Frequency range
110 - 8000 Hz
Voice coil diameter
34 mm (1.3 in)
Winding material
Copper
Former material
Glass Fibre
Winding depth
11 mm (0.43 in)
Magnetic gap depth
7 mm (0.28 in)
Flux density
1.35 T
Design:
Surround shape
Double Roll
Cone shape
Exponential
Magnet material
Neodymium Inside Slug
Spider
Single
Pole design
T-Pole
Woofer cone treatment
None
Parameters:
Fs
110 Hz
Re
5.5 ohms
Qes
0.27
Qms
4.2
Qts
0.28
Vas
1.6 dm3 (0.06 ft3)
Sd
57.0 cm2 (8.84 in2)
Reference efficiency
0.7 %
Xmax
3.8 mm
Xvar
5.7 mm
Mms
6.1 g
Bl
9.0 Txm
Le
0.23 mH
EBP
392 Hz
Mounting And Shipping Info:
Overall diameter
127 mm (5.0 in)
Bolt circle diameter
115 mm (4.53 in)
Baffle cutout diameter
103.0 mm (4.06 in)
Depth
66 mm (2.6 in)
Flange and gasket thickness
3 mm (0.04 in)
Air volume occupied by driver
0.25 dm3 (0.01 ft3)
Net weight
0.54 kg (1.19 lb)
Service Kit
RCK04NDF34
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