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Sub Bass Driver
  • New ergonomic, vented cast aluminium chassis offers improved thermal control
  • A bl in excess of 20 t/m
  • Improved motor plating providing a more resilient finish and resistance to corrosion
  • Suitable for bass guitar applications
Klippel Verifeid


15" / 380 mm

Coil Diameter

4.0" / 101.6 mm

Power Rating

500 w (A.E.S.)

Frequency Range

40 Hz - 2 kHz


97 dB


7.7 mm

Designed as an extremely powerful low frequency transducer for bass and compact bass applications. The PD.154/2 is Ideal for three-way direct radiating systems in which the powerful bass response comes into its own.

Equally at home in drum fill and stage monitor wedges where exceptional low frequency performance makes it an ideal choice. The PD.154/2 is also a faultless choice for bass guitar applications.

£193.41 MRRP Ex. VAT

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General Specifications
Type Sub Bass Driver
Available Impedance 4 Ω/ 8 Ω/ 16 Ω
Nominal Diameter 15" / 380 mm
Voice Coil Diameter 4.0" / 101.6 mm
Peak Power (6 dB Crest Factor) * 2000 w (A.E.S.)
Power Rating 1 2 * 500 w (A.E.S.)
Sensitivity (1W/ 1m) * 97 dB
Frequency Range 40 Hz - 2 kHz
Resonance 44.94 Hz
Voice Coil Winding Depth 22 mm / 0.87"
Recommended Enclosure Volume 80 - 200 Litres
Flux Density 1.1 Tesla
Magnet Material Ceramic
Magnet Gap Depth 11 mm / 0.43"
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 44.94 Hz
Re 6.5 Ω
Qms 20.44
Qes 0.27
Qts 0.27
Le (@ 1 kHz) 1.03 mh
Vas 114.9 litres
Mms 126.62 g
Sd 907.92 cm2
Cms 99 µm/N
BL 29.44 T/m
Xmax 7.7 mm
Vd 0.658 litres
Ref. Efficiency 3.94%
EBP 166.44 Hz
Dimensions & Mounting
Overall Diameter 408.3 mm
Width Across Flats 395 mm
Flange Height 11 mm
Depth (Excl. Flange) 154 mm
Magnet Diameter 220 mm
Chassis Shoulder Diameter 356 mm
Outer Bolt Circle x6 M6 on 395 mm PCD
Shipping Information
Nett Weight 13 Kg / 28.66 lb.
Shipping Weight 14 Kg / 30.86 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 (40 to 400 Hz) Program 1000 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 500 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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