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Sub Bass Driver
(1 customer review)
  • Heavy-duty cast aluminium chassis for increased rigidity
  • Power compression only 1.7dB at rated power
  • A B/L in excess of 30 T/m
  • Double suspension
  • Appropriate for applications as diverse as scoop bins, conventional reflex cabinets and horn loaded systems
  • Silicone suspension system
  • Increased excursion over an 1850/2
  • Delivers fine and balanced tonal character, but equally can deliver aggressive bass in the lower bandwidths


18" / 457.2 mm

Coil Diameter

5.0" / 127 mm

Power Rating

1000 w (A.E.S.)

Frequency Range

35 Hz - 2 kHz


98 dB


12 mm
SKU: PD.1852.8 Category:

Sorry, this product is out of manufacture and no longer available.

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General Specifications
TypeSub Bass Driver
Nominal Diameter18" / 457.2 mm
Voice Coil Diameter5.0" / 127 mm
Power Rating 1 2 *1000 w (A.E.S.)
Available Impedance4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)*98 dB
Frequency Range35 Hz - 2 kHz
Peak Power (6 dB Crest Factor)4000 w (A.E.S.)
Resonance41.85 Hz
Voice Coil Winding Depth29 mm / 1.14"
Recommended Enclosure Volume90 - 220 Litres
Flux Density1.18 Tesla
Magnet MaterialCeramic
Magnet Gap Depth12 mm / 0.47"
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Voice Coil MaterialCopper
Cone MaterialPaper
Suspension MaterialDual silicone
Surround MaterialHGBC
Thiele Small Parameters
Fs41.85 Hz
Re5.18 Ω
Le (@ 1 kHz)0.9 mh
Vas120.38 litres
Mms231.21 g
Sd1164.16 cm2
Cms63 µm/N
BL30.47 T/m
Xmax12 mm
Vd1.397 litres
Ref. Efficiency2.34%
EBP123.08 Hz
Dimensions & Mounting
Overall Diameter474 mm
Width Across Flats459 mm
Flange Height14.5 mm
Depth (Excl. Flange)178 mm
Magnet Diameter280 mm
Chassis Shoulder Diameter414.5 mm
Outer Bolt Circle6 * M8 on 455mm PCD
Inner Bolt CircleN/A
Shipping Information
Nett Weight25 Kg / 55.11 lb.
Shipping Weight28.3 Kg / 62.39 lb.
*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 (35 to 350 Hz) Program 1600 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.
Frequency Response & Impedance
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1 review for PD.1852

  1. Dilip Jadhav

    Precision devices pd1852 speaker the word is the no 1 speaker

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