B&C Speakers Woofer 15PS40 User Manual

Speakers HPL Coaxials HF Compression drivers Horns
Specifications
Nominal Diameter 380 mm (15 in)
Nominal Impedance 8 Ω
Minumum Impedance 6.4 Ω
Power Handling
(50 –500 Hz)
Nominal
1
700 W
Continuous Program
2
1400 W
Sensitivity (1W/1m)
3
95 dB
Frequency Range 35-2000 Hz
Voice Coil Diameter 100 mm (4 in)
Winding Material Copper
Former Material Glass Fibre
Winding Depth 21 mm (13/16 in)
Magnetic Gap Depth 10 mm (3/8 in)
Flux Density 1.1 T
Also available in 4 Ω, data upon request
Thiele & Small Parameters
4
Fs 35 Hz
Re 5.3 Ω
Qes 0.33
Qms 8.5
Qts 0.32
Vas 177 dm
3
(6.2 ft
3
)
Sd 855 cm
2
(132.5 in
2
)
η
0
2.2%
X max ± 6 mm
X var ± 5.5 mm
Mms 120 g
Bl 20.4 T·m
Le 2.4 mH
Mounting and Shipping Information
Overall Diameter 394 mm (15.5 in)
Bolt Circle Diameter 374 mm (14.6 in)
Baffle Cutout Diameter 355 mm (13.9 in)
Depth 168 mm (6.6 in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 9.8 kg (21.6 lb)
Shipping Weight 11.1 kg (24.4 lb)
Shipping Box 450x450x200 mm
(17.7x17.7x8 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 2000Hz.
4
Thiele-Small parameters are measured after a high level 20 Hz sine wave precon-
ditioning test.
15 PS 40 | Woofer
Long excursion 15" woofer with 1400W power handling for
subwoofer application. A special 4" voice coil using
proprietary high temperature adhesives and an optimized
magnet assembly guarantees a very good LF dynamic range
with a very low distortion figure. Recommended for
compact bass-reflex enclosures.

B&C Speakers Woofer 15PS40 Specifications

General

Type	Woofer
Nominal Diameter	15 inches
Nominal Impedance	8 Ohms
Voice Coil Diameter	3 inches
Voice Coil Winding Material	Copper
Magnet Material	Ferrite
Qts	0.32

Summary

Specifications

Power Handling

Sensitivity

Thiele & Small Parameters

Fs (Resonant Frequency)

Lowest resonant frequency of the driver, measured at 35 Hz.

Re (DC Resistance)

DC resistance of the voice coil, measured at 5.3 ohms.

Qes (Electrical Q Factor)

Electrical Q factor of the driver, stated as 0.33.

Qms (Mechanical Q Factor)

Mechanical Q factor of the driver, measured at 8.5.

Qts (Total Q Factor)

Total Q factor of the driver, calculated as 0.32.

Vas (Equivalent Volume)

Equivalent volume of air with the same compliance as the driver's suspension, 177 dm³ (6.2 ft³).

Sd (Effective Piston Area)

Effective surface area of the speaker cone, 855 cm² (132.5 in²).

ηo (Reference Efficiency)

X max (Linear Excursion)

Maximum linear excursion of the cone, specified as +/- 6 mm.

X var (Variable Excursion)

Mms (Moving Mass)

Total moving mass of the cone and voice coil assembly, 120 g.

Bl (Force Factor)

Le (Voice Coil Inductance)