B&C Speakers Woofer 15PK40 User manual

Speakers HPL Coaxials HF Compression drivers Horns
Specification
Nominal Diameter 380 mm (15 in)
Nominal Impedance 8 Ω
Minumum Impedance 6.2 Ω
Power Handling
(50 –500 Hz)
Nominall00 W
Continuous Program2800 W
Sensitivity (1W/1m)399 dB
Frequency Range 50-2000 Hz
Voice Coil Diameter 76 mm (3 in)
Winding Material Copper
Former Material Glass Fibre
Winding Depth 16 mm (5/8 in)
Magnetic Gap Depth 9 mm (11/32 in)
Flux Density 1.1 T
Also available in 4 Ω, data upon request
Thiele & Small Parameter 4
Fs 7 Hz
Re 5.1 Ω
Qes 0.33
Qms 5.1
Qts 0.31
Vas 1 0 dm3( .9 ft3)
Sd 855 cm2(132.5 in2)
η0.2%
X max ± mm
X var ± 6 mm
Mms 8 g
Bl 19.7 T·m
Le 2.3 mH
Mounting and Shipping Information
Overall Diameter 39 mm (15.5 in)
Bolt Circle Diameter 37 mm (1 .6 in)
Baffle Cutout Diameter 355 mm (13.9 in)
Depth 162 mm (6. in)
Flange and Gasket Thickness 16 mm (5/8 in)
Net Weight 8.3 kg (18.3 lb)
Shipping Weight 9.6 kg (21.1 lb)
Shipping Box 50x 50x200 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.
Thiele-Small parameters are measured after a high level 20 Hz sine wave precon-
ditioning test.
15 PK 40 |Woofer
High efficiency 15" woofer with a very flat frequency
response up to 2 kHz and high power handling (800W). Good
LF performance, smooth voice response, and compatibility
with compact bass-reflex enclosures, the 15 PK 40 achieves
perfect balance in two-way systems.