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


  • Vented cast aluminium chassis for improved thermal control of voice coil.
  • Optimised vented voice coil cools and reduces coil gap turbulence.
  • Intended for 2 way speaker systems in a KTV application.


The PD.1225C001 is intended for KTV applications and offers good vocal character. The unit can produce good solid bass in compact cabinet design without the need of sub cabinets in the room.


* 2.83V. Half space response measured in a 960 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 (50 to 500 Hz) Program 300 Watts.

2. AES Recommended Practice.

3. Thiele - Small Parameters follow a 300 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 Diameter12" / 304.8 mm
Nominal Impedance4 / 8 / 16 Ω
Voice Coil Diameter2.5" / 63.5 mm
Power Rating300 W (A.E.S.)
Peak Power (6dB Crest Factor)1200 W (A.E.S.)
Sensitivity (1w / 1m)100 dB
Frequency Range45 Hz - 5 kHz
Recommended Enclosure Volume25 - 60 Litres
Voice Coil Winding Depth0.62" / 15.80 mm
Magnet Gap Depth9.00 mm / 0.35"
Flux Density1.10 Tesla
Magnet MaterialY30 Ferrite
Magnet Weight2.45 Kg / 86.42 oz
Voice Coil MaterialCopper Clad Aluminium
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialPoly Cotton
Cone Surround MaterialFabric
Fs39 Hz
Re5.2 Ω
Le @1k1.330 mH
Le @10k0.450 mH
Vas156 Litres
Mms48.30 g
Sd549.9 cm2
Cms363.20 µm/N
BL17.54 T/m
Xmax5.6 mm
Vd0.310 Litres
Reference Efficiency 4.23 %
EBP200.00 Hz
Overall Diameter331.00 mm
Width Across Flats320 mm
Flange Height10.00 mm
Depth113.00 mm
Magnet Diameter200 mm
Chassis Shoulder Diameter279.00 mm
Outer Bolt Circlex4 M6 on 318 mm PCD
Inner Bolt Circle(Hidden) x8 M6 on 293 mm PCD
Nett Weight8.45 Kg / 18.63 lb
Shipping Weight9.30 Kg / 20.50 lb
© Precision Devices Ltd, all rights reserved. Site developed by Edoru web design Wakefield
Investors In People