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No Longer Available
  • Out of Manufacture - No longer Available.
  • Neodymium magnet assembly.
  • Vented chassis with forced air cooling vented voice coil gap.
  • Aluminium demodulation ring.
  • Dual suspension assembly.
  • 5" High temperature copper voice coil.
  • Triple roll surround straight cone geometry.
  • For sub bass applications in bass reflex / horn loaded enclosures.


The PD.185N002 is ideally suited to applications where high power handling, long excursion and perfect linearity is required. Ideal for bass reflex and horn loaded enclosure systems. The robust mechanical design and construction makes this unit an ideal choice for fixed or touring applications.


* 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.

** Distortion is measured at 10% of the rated power (AES Standard).

1. AES Standard (30 to 300 Hz) Program 1000 Watts.

2. AES Recommended Practice.

3. Thiele - Small Parameters follow a 1000 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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Nominal Diameter18" / 457.2 mm
Nominal Impedance8 Ω
Voice Coil Diameter5.0" / 127 mm
Power Rating1000 W (A.E.S.)
Peak Power (6dB Crest Factor)4000 W (A.E.S.)
Sensitivity (1w / 1m)97.5 dB
Frequency Range30 Hz - 300 Hz
Recommended Enclosure Volume110 - 200 Litres
Voice Coil Winding Depth1.14" / 29.00 mm
Magnet Gap Depth13.50 mm / 0.53"
Flux Density1.20 Tesla
Magnet MaterialNeodymium
Magnet WeightN/A
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialPoly Cotton
Cone Surround MaterialFabric
Fs36 Hz
Re5.4 Ω
Le @1k3.070 mH
Le @10k1.330 mH
Vas226 Litres
Mms173.00 g
Sd1163 cm2
Cms117.60 µm/N
BL25.00 T/m
Xmax11.5 mm
Vd1.360 Litres
Reference Efficiency 2.85 %
EBP109.42 Hz
Overall Diameter473.60 mm
Width Across Flats458.73 mm
Flange Height14.50 mm
Depth174.00 mm
Magnet Diameter180 mm
Chassis Shoulder Diameter414.38 mm
Outer Bolt Circlex6 M8 on 456 mm PCD
Inner Bolt CircleN/A
Nett Weight11.50 Kg / 25.35 lb
Shipping Weight12.20 Kg / 26.90 lb
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