BC Speakers Portable Speaker 18 TBX 46 User Manual

Specifications  
Nominal Diameter  
Nominal Impedance  
Minumum Impedance  
Power Handling  
(40 –400 Hz)  
460 mm (18 in)  
8 Ω  
6.1 Ω  
Nominal1  
1000 W  
2000 W  
97 dB  
Continuous Program2  
Sensitivity (1W/1m)3  
Frequency Range  
Voice Coil Diameter  
Winding Material  
Former Material  
Winding Depth  
30-1500 Hz  
100 mm (4 in)  
Copper  
Glass Fibre  
25 mm (1 in)  
12 mm (.47 in)  
1.1 T  
Magnetic Gap Depth  
Flux Density  
Also available in 4 , data upon request  
4
Thiele & Small Parameters  
Fs  
Re  
34 Hz  
5.2 Ω  
Qes  
Qms  
Qts  
Vas  
0.33  
5.3  
0.31  
227 dm3 (8.0 ft3)  
Sd  
1210 cm2 (187.6 in2)  
2.5 %  
η0  
X max  
X Var  
Mms  
Bl  
9 mm  
11 mm  
18 TBX 46 | Speakers  
201 g  
25.8 T·m  
2.0 mH  
The most powerful 18" in our product range, 2000 W continuous program  
power handling, defines the "state of the art" about LF reproduction. A  
four inch copper wire voice coil with very high thermal capability and a  
ventilated magnet assembly allows a low power compression. A very low  
distortion figure is obtained using a double spider design and dual  
demodulation rings in the magnetic path. Proprietary water-proof cone  
treatment for safe use in adverse climatic conditions.  
Le  
Mounting and Shipping Information  
Overall Diameter  
Bolt Circle Diameter  
Baffle Cutout Diameter  
Depth  
Flange and Gasket Thickness  
Net weight  
Shipping Weight  
460 mm (18 in)  
440 mm (17.3 in)  
422 mm (16.6 in)  
188 mm (7.4 in)  
16 mm (5/8 in)  
13 kg (28.6 lb)  
14.8 kg (32.6 lb)  
Shipping Box  
520x520x240 mm (20.5x20.5x9.4 in)  
1 2 hours test made with continuous pink noise signal (6 dB crest factor) within  
the specified range. Power calculated on rated minimum impedance.  
Loudspeaker in free air.  
2 Power on Continuous Program is defined as 3 dB greater than the Nominal rating.  
3 Applied RMS Voltage is set to 2.83V for 8 ohms Nominal Impedance. Average  
SPL from 200 to 1200Hz.  
4 Thiele-Small parameters are measured after a high level 20 Hz sine wave precon-  
ditioning test.  
 

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