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Mid Range Driver
  • Discontinued – Special Order / OEM Only
  • Contact for order information
  • Heavy-duty cast aluminium chassis for increased rigidity
  • Neodymium magnet assembly
  • A B/L in excess of 20 T/m
  • Synthetic loaded paper cone optimised for minimum delayed resonances
  • Suitable for direct radiating or horn loaded mid/high applications


12" / 300 mm

Coil Diameter

2.5" / 63.5 mm

Power Rating

300 w (A.E.S.)

Frequency Range

60 Hz - 5 kHz


100 dB


2.6 mm
SKU: PDN.12MH25.8 Category:

Sorry, this product is out of manufacture and no longer available.

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General Specifications
Type Mid Range Driver
Available Impedance 4 Ω/ 8 Ω/ 16 Ω
Nominal Diameter 12" / 300 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 60 Hz - 5 kHz
Resonance 58.12 Hz
Voice Coil Winding Depth 11 mm / 0.43"
Recommended Enclosure Volume 25 - 70 Litres
Flux Density 1.67 Tesla
Magnet Material Neodymium
Magnet Gap Depth 8 mm / 0.31"
Former Material Glass Fibre
Dust Dome Material Paper
Voice Coil Material Copper
Cone Material Paper
Suspension Material Fabric
Surround Material Fabric
Thiele Small Parameters
Fs 58.12 Hz
Re 6.05 Ω
Qms 9.45
Qes 0.24
Qts 0.24
Le (@ 1 kHz) 0.41 mh
Vas 64.49 litres
Mms 46.03 g
Sd 530.93 cm2
Cms 162.67 µm/N
BL 20.47 T/m
Xmax 2.6 mm
Vd 0.138 litres
EBP 242.16 Hz
Dimensions & Mounting
Overall Diameter 330 mm
Width Across Flats 320.5 mm
Flange Height 10 mm
Depth (Excl. Flange) 103 mm
Magnet Diameter 140 mm
Chassis Shoulder Diameter 282 mm
Outer Bolt Circle 6 * M6 on 318mm PCD
Inner Bolt Circle 8 * M6 on 293mm PCD
Shipping Information
Nett Weight 4.5 Kg / 9.92 lb.
Shipping Weight 5.25 Kg / 11.57 lb.
*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 (60 to 100 Hz) Program 600 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.
Frequency Response & Impedance
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