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Sub Bass Driver
  • Heavy-duty cast aluminium Chassis for increased rigidity
  • Double suspension system
  • Easy integration with 2″ compression drivers
  • Effective transducer in a variety of versatile applications


15" / 380 mm

Coil Diameter

4.5" / 115 mm

Power Rating

650 w (A.E.S.)

Frequency Range

50 Hz - 1.5 kHz


96 dB


8.1 mm
SKU: PD.156.8 Category:

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

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General Specifications
TypeSub Bass Driver
Nominal Diameter15" / 380 mm
Voice Coil Diameter4.5" / 115 mm
Power Rating 1 2 *650 w (A.E.S.)
Available Impedance4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)*96 dB
Frequency Range50 Hz - 1.5 kHz
Peak Power (6 dB Crest Factor)2600 w (A.E.S.)
Resonance50.25 Hz
Voice Coil Winding Depth21 mm / 0.83"
Recommended Enclosure Volume90 - 280 Litres
Flux Density1.5 Tesla
Magnet MaterialCeramic
Magnet Gap Depth9 mm / 0.35"
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Voice Coil MaterialCopper
Cone MaterialPaper
Suspension MaterialDual Fabric
Surround MaterialFabric
Thiele Small Parameters
Fs50.25 Hz
Re5.69 Ω
Le (@ 1 kHz)1 mh
Vas93.4 litres
Mms124.55 g
Sd907.92 cm2
Cms80.83 µm/N
BL20.98 T/m
Xmax8.1 mm
Vd0.648 litres
Ref. Efficiency3.63%
EBP100.5 Hz
Dimensions & Mounting
Overall Diameter410 mm
Width Across Flats395 mm
Flange Height10 mm
Depth (Excl. Flange)143 mm
Magnet Diameter220 mm
Chassis Shoulder Diameter357 mm
Outer Bolt Circle6 * M6 on 395mm PCD
Inner Bolt Circle8 * M6 on 370mm PCD
Shipping Information
Nett Weight13.25 Kg / 29.21 lb.
Shipping Weight14.25 Kg / 31.42 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 (45 to 450 Hz) Program 1300 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 650 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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