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


  • Heavy-duty cast aluminium chassis for increased rigidity.
  • Double suspension system.
  • Effective transducer in a variety of versatile applications.
  • Suitable for horn loaded or reflex designs.

*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 (40 to 400 Hz) Program 1400 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 700 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 Diameter460 mm / 18"
Voice Coil Diameter127 mm / 5.0"
Nominal Impedance8 Ω
Available In4 Ω/ 8 Ω/ 16 Ω
Power Rating700 w (A.E.S.)
Peak Power (6dB Crest Factor)2800 w (A.E.S.)
Sensitivity (1w / 1m)95 dB
Frequency Range30 Hz - 2 kHz
Recommended Enclosure Volume100 - 350 Litres
Resonance34.18 Hz
Voice Coil Winding Depth25 mm / 0.98"
Magnet Gap Depth9 mm / 0.35"
Flux Density Tesla0.95 Tesla
Magnet MaterialCeramic
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialDual Fabric
Cone Surround MaterialPaper / Fabric
Fs 34.18 Hz
Re 6.19 Ω
Le 1.95 mh
L2 3.06 mh
R2 8.07 Ω
Vas 192.15 litres
Mms 203.93 g
Sd 1134.11 cm2
Cms 106.67 µm/N
BL22.18 T/m
Xmax10.5 mm
Vd1.2 litres
Ref. Efficiency2.05%
Overall Diameter474 mm
Width Across Flats459 mm
Flange Height14.5 mm
Depth (Excl. Flange)173 mm
Magnet Diameter220 mm
Chassis Shoulder Diameter414.5 mm
Outer Bolt Circle6 * M8 on 455mm PCD
Inner Bolt CircleN/A
Nett Weight15.1 Kg / 33.28 lb.
Shipping Weight16.5 Kg / 36.37 lb.
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