Precision Devices International Limited Precision Devices Made in UK
Precision Devices - Exporting Is Great Precision Devices Compression Driver Range - Out Now Precision Devices PD.CD1.5NR1 Precision Devices PD.CD1N the precision dna


  • Engineered for minimal weight using traditional ferrite magnet motor.
  • 5" High temperature copper voice coil.
  • 3 Kg Y35 ceramic magnet.
  • Double suspension assembly.
  • Triple roll surround straight cone geometry.
  • Straight cone geometry.


The PD.185001 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 950 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 900 Watts.

2. AES Recommended Practice.

3. Thiele - Small Parameters follow a 900 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.

Select Country
Select Location
(Town / Zip / Post Code)
Nominal Diameter18" / 457.2 mm
Nominal Impedance4 / 8 / 16 Ω
Voice Coil Diameter5.0" / 127 mm
Power Rating1200 W (A.E.S.)
Peak Power (6dB Crest Factor)4800 W (A.E.S.)
Sensitivity (1w / 1m)97 dB
Frequency Range30 Hz - 300 Hz
Recommended Enclosure Volume125 - 200 Litres
Voice Coil Winding Depth0.98" / 25.00 mm
Magnet Gap Depth9.00 mm / 0.35"
Flux Density0.96 Tesla
Magnet MaterialCeramic
Magnet Weight3.00 Kg / 105.82 oz
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialFabric
Cone Surround MaterialPaper / Fabric
Fs32 Hz
Re5.9 Ω
Le @1k3.800 mH
Le @10k1.589 mH
Vas302 Litres
Mms157.20 g
Sd1162 cm2
Cms157.40 µm/N
BL21.00 T/m
Xmax10.5 mm
Vd1.220 Litres
Reference Efficiency 2.26 %
EBP75.65 Hz
Overall Diameter473.62 mm
Width Across Flats458.73 mm
Flange Height14.50 mm
Depth182.47 mm
Magnet Diameter220 mm
Chassis Shoulder Diameter414.38 mm
Outer Bolt Circlex6 M8 on 456 mm PCD
Inner Bolt CircleN/A
Nett Weight13.00 Kg / 28.66 lb
Shipping Weight13.50 Kg / 29.76 lb
© Precision Devices Ltd, all rights reserved. Site developed by Edoru web design Wakefield
Investors In People