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B&C Speaker 6NDL44[6 NDL 44]

B&C Speaker 6NDL44

B&C Speaker 6NDL44[6 NDL 44]

:

112,00
Aantal :
Omschrijving
General Information
 
brand B&C.Speakers
type 6NDL44
description 400 W continuous program power capacity 44 mm (1.7 in) copper voice coil 70 - 6000 Hz response 91.5 dB sensitivity
application 0
serie N/A
impedance[Ohm]
This loudspeaker can normally be supplied with these impedances.

Comment: values different than 8 ohm are more difficult to supply.

8 Ohm
minimum_impedance[Ohm] 0.00
diameter["] 6.0
power[W] 200
power_definition N/A
power_program[W] 0
power_continuous[W] 0
power_peak[W] 0
sensitivity[dB] 91.5
freq_low[Hz] 70
freq_high[Hz] 6000
power_compression_10dB[dB] 0
power_compression_3dB[dB] 0
power_compression_0dB[dB] 0
magnet_material Neodymium
voice_coil_diameter[mm (inch)] 44 (1.7)
voice_coil_height[mm] 12
voice_coil_material N/A
magnetic_gap_depth[mm] 6.0
pole_design N/A
flux_density[T] 1.25
ebp 194.3
vd[dm3]
Sd * Xmax
0.08
typical_use Woofer
production_status continued
technologies N/A

Thiel Small Specifications
 
fs[Hz]
Resonant frequency, fs
68
re[Ohm]
DC voice coil resistance, Re
5.00
qts
Total Quality Factor, Qts
0.34
qes
Electrical Quality Factor, Qes
0.35
qms
Mechanical Quality Factor, Qms
9.00
mms[gram] 17.0
bl[T*m] 10.3
vas[dm3]
Equivalent Air Volume to CMS, VAS
8
cms
Mechanical Compliance, Cms
0
rms
Mechanical Resistance, Rms
0.0
n0[%]
Efficiency
0.65
sd[cm2]
Effective Surface Area, Sd
132
xmax[mm]
Maximum Displacement, Xmax
6.0
le[mH]
Voice Coil Inductance, Le @ 1 k
0.57

Additional Thiel Small Specifications
 
x_var[mm]
These limits are customarily indicated by Xmax, the maximum linear excursion. This value, measured in our catalogue according to AES2-1984 standard, corresponds to the reaching of 10% total harmonic distortion (THD) with a sinusoidal signal. Recent research shows that this method can yield ambiguous results and even different numerical values for the same loudspeaker. The main limit of this measurement is that it looks at the output signal instead of the physical features of the driver itself. On the contrary, the most up-to-date instruments for distortion analysis can measure the variations in loudspeaker parameters when they are fed with high-level signals. This way, an excursion limit can be fixed, beyond which the parameters variation becomes excessive. The "Xvar" value reported here, after the traditional "Xmax" value, is measured that way. Beyond this excursion limit, the magnetic field seen by the voice coil, or the total suspension compliance, or both, drop to less than 50% of their small signal value, producing high distortion levels, strong variations from small signal behaviour and power compression. The new technique yields different results from the standard measurement based on THD. B&C Speakers believes that this added information gives a more accurate and reliable description on loudspeakers behaviour in actual operating conditions.
5.5
x_damage[mm]
(peak - peak)
 
x_max_recalculated[mm]
Unfortunately many loudspeaker manufactures use different equations for calculating x_max. The value, which is given here, is calculated by this equation*: x_max=(coil_height - magnetic_gap_depth) / 2 * if values coil_heigt and magnetic_gap_height are known
3.0
n0_recalculated[%]
The value n0_recalculated is calculated using the equation of Richard Small: 9,6 e ^ - 8 * fs ^ 3 * VAS / Qes With known values for n0 and n0_recalculated, you have the possibilty to compare these values.
 

Design Specifications
 
surround_shape N/A
surround_material N/A
cone_shape N/A
cone_material N/A
basket_material N/A
former_material N/A
spider_material N/A

Mounting Information
 
overall_diameter[mm] 187
bolt_circle_diameter[mm] 0
baffle_cutout_diameter_front[mm] 145
baffle_cutout_diameter_rear[mm] 0
driver_depth[mm] 82
magnet_diameter[mm]  
driver_volume[dm3]  
weight_netto[kg] 1.2
weight_shipping[kg] 1.5
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