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Bass / Mid Range Driver
  • 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
Klippel Verifeid


12" / 304.8 mm

Coil Diameter

2.5" / 63.5 mm

Power Rating

300 W (A.E.S.)

Frequency Range

45 Hz - 5 kHz


100 dB


5.6 mm

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.

SKU: PD.1225C001.8 Categories: , , Tag:


This model is part of our OEM series and will be manufactured to order, please get in touch with us for more information.

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Frequency Response Graph
Impedance GRAPH
General Specifications
TypeBass / Mid Range Driver
Nominal Diameter12" / 304.8 mm
Voice Coil Diameter2.5" / 63.5 mm
Power Rating 1 2 *300 W (A.E.S.)
Available Impedance4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)*100 dB
Frequency Range45 Hz - 5 kHz
Peak Power (6 dB Crest Factor)1200 W (A.E.S.)
Resonance39 Hz
Voice Coil Winding Depth0.62" / 15.80 mm
Recommended Enclosure Volume25 - 60 Litres
Flux Density1.10 Tesla
Magnet MaterialY30 Ferrite
Magnet Gap Depth9.00 mm / 0.35"
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Voice Coil MaterialCopper Clad Aluminium
Cone MaterialPaper
Suspension MaterialPoly Cotton
Surround MaterialFabric
Thiele Small Parameters
Fs39 Hz
Re5.2 Ω
Le (@ 1 kHz)1.330 mH
Vas156 Litres
Mms48.30 g
Sd549.9 cm2
Cms363.20 µm/N
BL17.54 T/m
Xmax5.6 mm
Vd0.310 Litres
Ref. Efficiency4.23%
EBP200.00 Hz
Dimensions & Mounting
Overall Diameter331.00 mm
Width Across Flats320 mm
Flange Height10.00 mm
Depth (Excl. Flange)113.00 mm
Magnet Diameter200 mm
Chassis Shoulder Diameter282.00 mm
Outer Bolt Circlex4 M6 on 318 mm PCD
Inner Bolt Circle(Hidden) x8 M6 on 293 mm PCD
Shipping Information
Nett Weight8.45 Kg / 18.63 lb
Shipping Weight9.30 Kg / 20.50 lb
* 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.
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