B&C Speakers 12 HPL 76 User Manual

Specification

Nominal Diameter 320 (12) mm (in)
Nominal Impedance (1) 8 Ohm
Minimum Impedence 6.7 Ohm
Nominal Power Handling (2) 350 W
Continuous Power Handling (3) 700 W
Sensitivity (1W/1m) (4) 99 dB
Frequency Range 50 -3500 Hz
Voice Coil Diameter 76 (3) mm (in)
Winding Material Aluminium
Former Material Glass Fibre
Winding Depth 17.5 (11/16) mm (in)
Magnetic Gap Depth 10 (0.4) mm (in)
Flux Density 1.15 T

Thiele & Small Parameters

Fs 49 Hz
Re 5.7 Ohm
Qes 0.26
Qms 2.5
Qts 0.25
Vas 91 (3.2) dm3 (ft3)
Sd 522 (80.9) cm2 (in2)
Eta Zero 4.1 %
Xmax +/- 4 mm
Xvar +/- 5.5 mm
Mms 43 g
Bl 17.3 Txm
Le 1.5 mH

12HPL76

Neodymium magnet allows a very light yet powerful motor assembly

Ventilated voice coil gap for reduced power compression

Woofer

700 W continuous program power capacity

76 mm (3 in) aluminium voice coil

50 – 3500 Hz response

99 dB sensitivity

LF Drivers LF Nd Drivers Coaxials HF Drivers Horns

Mounting and Shipping Info

Overall Diameter 315 mm (12.4 in)
Bolt Circle Diameter 296 mm (11.6 in)
Baffle Cutout Diameter 282 mm (11.1 in)
Depth 144 mm (5.7 in)
Flange and Gasket Thickness 12.5 mm (0.5 in)
Net Weight 3.2 kg (7.0 lb)
Shipping Weight 3.9 kg (8.6 lb)
Shipping Box 380x380x170 mm

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

(15x15x6.7 in)