Precision Devices International Limited Precision Devices Made in UK
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PDN.12SB40

  • Heavy-duty cast aluminium chassis for increased rigidity.
  • Smooth extended low-frequency response.
  • Suitable for bass reflex and bandpass applications.
  • Easy integration with 2" compression drivers.


*2.83V. Half space response measured in a 975 Litre sealed enclosure.


 

*1 Power compression is the reduction of sensitivity at the specified power. Higher power ratings do not necessarily give a proportionate increase in SPL therefore the maximum SPL of the driver may significantly exceed that of other manufacturers with high power ratings.

1. AES Standard (50 to 500 Hz) Program 1200 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 600 Watt preconditioning period.

Please note that frequency response measurements are supplied for comparison purposes only and are not a measure of the low frequency performance which may be achievable in a fully optimised system.

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SPECIFICATIONS
Nominal Diameter300 mm / 12"
Voice Coil Diameter101 mm / 4.0"
Nominal Impedance8 Ω
Available In8 Ω
Power Rating600 w (A.E.S.)
Peak Power (6dB Crest Factor)2400 w (A.E.S.)
Sensitivity (1w / 1m)95 dB
Frequency Range40 Hz - 2 kHz
Recommended Enclosure Volume25 - 100 Litres
Resonance49.91 Hz
Voice Coil Winding Depth22 mm / 0.87"
Magnet Gap Depth8 mm / 0.31"
Flux Density Tesla1.13 Tesla
Magnet MaterialNeodymium
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialDual Fabric
Cone Surround MaterialPaper / Fabric
THIELE SMALL PARAMETERS
Fs 49.91 Hz
Re 5.36 Ω
Qms8.82
Qes0.33
Qts0.32
Le 0.9 mh
L2 1.66 mh
R2 13.86 Ω
Vas 45.81 litres
Mms 87.95 g
Sd 530.93 cm2
Cms 115.67 µm/N
BL21 T/m
Xmax9.2 mm
Vd1.1 litres
Ref. Efficiency1.13%
MOUNTING AND SHIPPING INFORMATION
Overall Diameter330 mm
Width Across Flats320.5 mm
Flange Height10 mm
Depth (Excl. Flange)131 mm
Magnet Diameter283 mm
Chassis Shoulder Diameter282 mm
Outer Bolt Circle6 * M6 on 318mm PCD
Inner Bolt Circle8 * M6 on 293mm PCD
Nett Weight6.75 Kg / 14.88 lb.
Shipping Weight7.5 Kg / 16.53 lb.
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