Specifications
Nominal Diameter
Nominal Impedance
Minumum Impedance
Power Handling
380 mm (15 in)
8 Ω
6.1 Ω
(40 –400 Hz)
Nominal1
1000 W
2000 W
97 dB
Continuous Program2
Sensitivity (1W/1m)3
Frequency Range
Voice Coil Diameter
Winding Material
Former Material
35 -1800 Hz
100 mm (4 in)
Copper
Glass Fibre
25 mm (1 in)
12 mm (.47 in)
1.1 T
Winding Depth
Magnetic Gap Depth
Flux Density
Also available in 4 Ω, data upon request
4
Thiele & Small Parameters
Fs
Re
38 Hz
5.2 Ω
Qes
Qms
Qts
Vas
0.29
6.3
0.28
131 dm3 (4.6 ft3)
Sd
855 cm2 (132.5 in2)
2.3 %
η0
X max
X Var
Mms
Bl
9 mm
11 mm
141 g
15 TBX 40 | Woofer
24.6 T·m
1.8 mH
Le
2000 W power handling, 4" voice coil with very high thermal
capability and a ventilated magnet assembly that 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. State of the art performance, in the smallest
possible enclosure, set the 15 TBX 40 as a benchmark loudspeaker.
Mounting and Shipping Information
Overall Diameter
Bolt Circle Diameter
Baffle Cutout Diameter
Depth
394 mm (15.5 in)
374 mm (14.6 in)
355 mm (13.9 in)
158 mm (6.2 in)
16 mm (0.63 in)
10.2 kg (22.4 lb)
11.5 kg (25.3 lb)
450x450x200 mm
(17.7x17.7x8 in)
Flange and Gasket Thickness
Net weight
Shipping Weight
Shipping Box
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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