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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
Type Bass / Mid Range Driver
Available Impedance 4 Ω/ 8 Ω/ 16 Ω
Nominal Diameter 12" / 304.8 mm
Voice Coil Diameter 2.5" / 63.5 mm
Peak Power (6 dB Crest Factor) * 1200 W (A.E.S.)
Power Rating 1 2 * 300 W (A.E.S.)
Sensitivity (1W/ 1m) * 100 dB
Frequency Range 45 Hz - 5 kHz
Resonance 39 Hz
Voice Coil Winding Depth 0.62" / 15.80 mm
Recommended Enclosure Volume 25 - 60 Litres
Flux Density 1.10 Tesla
Magnet Material Y30 Ferrite
Magnet Gap Depth 9.00 mm / 0.35"
Former Material Glass Fibre
Dust Dome Material Paper
Voice Coil Material Copper Clad Aluminium
Cone Material Paper
Suspension Material Poly Cotton
Surround Material Fabric
Thiele Small Parameters
Fs 39 Hz
Re 5.2 Ω
Qms 5.9
Qes 0.195
Qts 0.189
Le (@ 1 kHz) 1.330 mH
Vas 156 Litres
Mms 48.30 g
Sd 549.9 cm2
Cms 363.20 µm/N
BL 17.54 T/m
Xmax 5.6 mm
Vd 0.310 Litres
Ref. Efficiency 4.23%
EBP 200.00 Hz
Dimensions & Mounting
Overall Diameter 331.00 mm
Width Across Flats 320 mm
Flange Height 10.00 mm
Depth (Excl. Flange) 113.00 mm
Magnet Diameter 200 mm
Chassis Shoulder Diameter 282.00 mm
Outer Bolt Circle x4 M6 on 318 mm PCD
Inner Bolt Circle (Hidden) x8 M6 on 293 mm PCD
Shipping Information
Nett Weight 8.45 Kg / 18.63 lb
Shipping Weight 9.30 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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