B&C Speakers 18TBX100 User Manual
Subwoofer, Specification, Thiele & small parameters
18TBX100
Subwoofer
LF Drivers
LF Nd Drivers
Coaxials
HF Drivers
Horns
2000 W continuous program power capacity
100 mm (4 in) copper voice coil
35 – 1000 Hz response
97 dB sensitivity
Aluminium demodulating ring allows a very low distortion figure
Double silicone spider with optimized compliance
Ventilated voice coil gap for reduced power compression
Specification
Nominal Diameter
460 (18) mm (in)
Nominal Impedance (1)
8 Ohm
Minimum Impedence
6.2 Ohm
Nominal Power Handling (2)
1000 W
Continuous Power Handling (3)
2000 W
Sensitivity (1W/1m) (4)
97 dB
Frequency Range
35 - 1000 Hz
Voice Coil Diameter
100 (4) mm (in)
Winding Material
Copper
Former Material
Glass Fibre
Winding Depth
25 (1) mm (in)
Magnetic Gap Depth
12 (1/2) mm (in)
Flux Density
1.1 T
Thiele & Small Parameters
Fs
34 Hz
Re
5.1 Ohm
Qes
0.37
Qms
7.2
Qts
0.35
Vas
212 (7.5) dm3 (ft3)
Sd
1210 (187.6) cm2 (in2)
Eta Zero
2.2 %
Xmax
+/- 9 mm
Xvar
+/- 11 mm
Mms
209 g
Bl
25.5 Txm
Le
1.6 mH
Mounting and Shipping Info
Overall Diameter
460 mm (18 in)
Bolt Circle Diameter
440 mm (17.3 in)
Baffle Cutout Diameter
422 mm (16.6 in)
Depth
209 mm (8.2 in)
Flange and Gasket Thickness
16 mm (5/8 in)
Net Weight
13 kg (28.6 lb)
Shipping Weight
14.4 kg (31.7 lb)
Shipping Box
500x500x250 mm
(19.7x19.7x9.8 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.
3
Power on Continuous Program is defined as 3 dB greater than the
Nominal rating.
4
Applied RMS Voltage is set to 2.83V for 8 ohms or 2.0V for 4 ohms
Nominal Impedance