PD.185N002

Sub Bass Driver
  • 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
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Download PDF Datasheet
Frequency Response GRaPH
Impedance GRAPH
General Specifications
Nominal Diameter18" / 457.2 mm
Voice Coil Diameter5.0" / 127 mm
Available Impedances4 Ω/ 8 Ω/ 16 Ω
Power Rating 1 2 *1000 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
Resonance36 Hz
Voice Coil Winding Depth1.14" / 29.00 mm
Magnet Gap Depth13.50 mm / 0.53"
Flux Density1.20 Tesla
Magnet MaterialNeodymium
Magnet Weight
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialPoly Cotton
Cone MaterialPaper
Surround MaterialFabric
Thiele Small Parameters
Fs36 Hz
Re5.4 Ω
Qms3.1
Qes0.329
Qts0.3
Le (@1 kHz)
Le (@10 kHz)3.070 mH
Vas226 Litres
Mms173.00 g
Sd1163 cm2
Cms117.60 µm/N
BL25.00 T/m
Xmax11.5 mm
Vd1.360 Litres
Ref. Efficiency2.85%
EBP109.42 Hz
Dimensions & Mounting
Overall Diameter18" / 457.2 mm
Widths Across Flats458.73 mm
Flange Height14.50 mm
Depth (Excl. Flange)174.00 mm
Magnet Diameter180 mm
Chassis Shoulder Diameter414.38 mm
Outer Bolt Circlex6 M8 on 456 mm PCD
Inner Bolt CircleN/A

 

Shipping Information
Nett Weight11.50 Kg / 25.35 lb
Shipping Weight12.20 Kg / 26.90 lb

 

Notes
* 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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