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


No Longer Available
  • Out of Manufacture - No longer Available.
  • Vented Chassis.
  • Forced Air cooling vented voice Coil Gap.
  • Vented Voice coil former.
  • Carbon loaded cone.
  • 2.5" High Temperature copper Voice Coil.
  • Parallel Neodymium Motor structure.
  • Highest grade N40H Neodymium.


The PD-1225N001 is intended for use as a Mid / High driver in multi way systems and is suitable for direct radiating or horn loaded applications. The Carbon fibre loaded cone ensures accurate and defined tonal characters across its working band and ensures rigidity and integrity at high levels of SPL. Exhibiting an average sensitivity of 98dB across its working band, the PD.1225N001 features a vented bobbin copper voice coil, that works in conjunction with the forced air cooled vented voice coil gap, ensuring that the motor runs cool and power compression is kept to a minimum.


* 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 (60 to 600 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 Impedance8 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)99 dB
Frequency Range55 Hz - 5 kHz
Recommended Enclosure Volume25 - 50 Litres
Voice Coil Winding Depth0.43" / 11.00 mm
Magnet Gap Depth8.50 mm / 0.33"
Flux Density1.35 Tesla
Magnet MaterialNeodymium
Magnet WeightN/A
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialSolid Paper
Suspension MaterialFabric
Cone Surround MaterialCarbon Loaded Paper / M Roll Poly Cotton
Fs55 Hz
Re5.5 Ω
Le @1k1.460 mH
Le @10k0.587 mH
Vas71 Litres
Mms47.00 g
Sd531 cm2
Cms178.20 µm/N
BL17.50 T/m
Xmax3 mm
Vd0.159 Litres
Reference Efficiency 3.90 %
EBP188.36 Hz
Overall Diameter330.00 mm
Width Across Flats320 mm
Flange Height10.00 mm
Depth130.00 mm
Magnet Diameter90.5 mm
Chassis Shoulder Diameter279.50 mm
Outer Bolt Circlex4 M6 on 318 mm PCD
Inner Bolt CircleN/A
Nett Weight3.40 Kg / 7.50 lb
Shipping Weight4.00 Kg / 8.82 lb
© Precision Devices Ltd, all rights reserved. Site developed by Edoru web design Wakefield
Investors In People