B&C Speakers 12HPL64 User Manual

Specification

Nominal Diameter 320 (12) mm (in)
Nominal Impedance (1) 8 Ohm
Minimum Impedence 6.5 Ohm
Nominal Power Handling (2) 200 W
Continuous Power Handling (3) 400 W
Sensitivity (1W/1m) (4) 100 dB
Frequency Range 50 - 4000 Hz
Voice Coil Diameter 64 (2.5) mm (in)
Winding Material Aluminium
Former Material Glass Fibre
Winding Depth 12.5 (1/2) mm (in)
Magnetic Gap Depth 8 (5/16) mm (in)
Flux Density 1.25 T

Thiele & Small Parameters

Fs 52 Hz
Re 5.8 Ohm
Qes 0.35
Qms 3.3
Qts 0.32
Vas 85 (3) dm3 (ft3)
Sd 522 (80.9) cm2 (in2)
Eta Zero 3.3 %
Xmax +/- 4 mm
Xvar +/- 4.5 mm
Mms 41.5 g
Bl 14.9 Txm
Le 1.1 mH

12HPL64

Neodymium magnet allows a very light yet powerful motor assembly

Woofer

400 W continuous program power capacity

64 mm (2.5 in) aluminium voice coil

50 – 4000 Hz response

100 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 2.1 kg (4.6 lb)
Shipping Weight 2.8 kg (6.2 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)