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Sub Bass Driver
  • Vented cast aluminium chassis for improved thermal control of voice coil
  • Aluminium demodulation ring
  • Flat wire 4” high temperature copper voice coil
  • Dual spider configuration with silicone based damping control
  • Triple roll surround straight cone geometry
  • For sub bass applications in bass reflex enclosures
Klippel Verifeid


18” / 457.2 mm

Coil Diameter

4.0” / 101.6 mm

Power Rating

900 W (A.E.S.)

Frequency Range

30 Hz - 500 Hz


99 dB


9.70 mm

The PD.184C002 is ideally suited to applications where high power handling, long excursion and perfect linearity is required. Ideal for bass reflex enclosure systems. The robust mechanical design and construction makes this unit an ideal choice for fixed or touring applications.

SKU: PD.184C002 Categories: , , Tags: ,


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 Sub Bass Driver
Available Impedance 4 Ohm / 8 Ohm / 16 Ohm
Nominal Diameter 18” / 457.2 mm
Voice Coil Diameter 4.0” / 101.6 mm
Peak Power (6 dB Crest Factor) * 3600 W (A.E.S.)
Power Rating 1 2 * 900 W (A.E.S.)
Sensitivity (1W/ 1m) * 99 dB
Frequency Range 30 Hz - 500 Hz
Resonance 40 Hz
Voice Coil Winding Depth 26.00 mm / 1.02”
Recommended Enclosure Volume 90 - 200 Litres
Flux Density 1.10 Tesla
Magnet Material Ceramic
Magnet Gap Depth 13.0 mm / 0.51”
Former Material Glass Fibre
Dust Dome Material Solid Paper
Voice Coil Material Copper Flat Wire
Cone Material Fibre loaded paper
Suspension Material Poly Cotton
Surround Material Poly cotton
Thiele Small Parameters
Fs 40 Hz
Re 5.2 Ω
Qms 5.67
Qes 0.360
Qts 0.340
Le (@ 1 kHz) 1.110 mH
Le (@10 kHz) 2.31 mH
Vas 268 Litres
Mms 112.00 g
Sd 1152 cm2
Cms 141.00 μm/N
BL 21.00 T/m
Xmax 9.70 mm
Vd 1.120 Litres
Ref. Efficiency 3.55%
EBP 111.11 Hz
Dimensions & Mounting
Overall Diameter 474 mm
Width Across Flats 459 mm
Flange Height 14.5 mm
Depth (Excl. Flange) 176 mm
Magnet Diameter 220 mm
Chassis Shoulder Diameter 415 mm
Outer Bolt Circle x6 M8 on 456 mm PCD
Shipping Information
Nett Weight 15.50 kg / 34.17 lb
Shipping Weight 16.00 kg / 35.27 lb
* 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 (A.E.S. standard).

1. A.E.S. Standard (30 to 350 Hz).
2. A.E.S. Recommended Practice.
3. Thiele - Small Parameters follow a 800 Watt preconditioning period verified by Klippel LSI measurement.
4. Half space response measured in a 975 Litre sealed enclosure.

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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