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Bass Driver
  • Heavy duty cast aluminium frame for increased rigidity
  • Low distortion
  • Suitable for bass reflex or closed box designs but also works well in horn loaded designs


18" / 457.2 mm

Coil Diameter

4.0" / 101.6 mm

Power Rating

700 W (A.E.S.)

Frequency Range

40 Hz - 1 kHz


98 dB


8 mm

The PD.184C01 utilises our new chassis design and has been engineered using a fully optimised cone and surround to improve linearity and tonal character. These changes bring the PD.184C01 to the forefront for improved, Hi-Fi like performance coupled with Pro Audio power handling and reliability.

The PD.184C01 performance characteristics can be optimised by reflex loading. The excellent definition and response speed at the lowest audio frequencies make this drive unit eminently suitable as the bass component in monitoring systems.

This versatile driver is equally at home in traditional Horn Loaded applications offering tight punch / defined bass reproduction across its working band.

SKU: PD.184C01.8 Category:

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

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General Specifications
Type Bass Driver
Available Impedance 4 Ω/ 8 Ω/ 16 Ω
Nominal Diameter 18" / 457.2 mm
Voice Coil Diameter 4.0" / 101.6 mm
Peak Power (6 dB Crest Factor) * 2800 W (A.E.S.)
Power Rating 1 2 * 700 W (A.E.S.)
Sensitivity (1W/ 1m) * 98 dB
Frequency Range 40 Hz - 1 kHz
Resonance 30 Hz
Voice Coil Winding Depth 22 mm / 0.87"
Recommended Enclosure Volume 100 - 300 Litres
Flux Density 0.98 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 30 Hz
Re 4.81 Ω
Qms 15.2
Qes 0.23
Qts 0.23
Le (@ 1 kHz) 0.47 mH
Vas 337.07 Litres
Mms 163.37 g
Sd 1164.16 cm²
Cms 0.18 mm/N
BL 25.21 T/m
Xmax 8 mm
Vd 0.931 Litres
Ref. Efficiency 3.65%
EBP 130.43 Hz
Dimensions & Mounting
Overall Diameter 474 mm
Width Across Flats 459 mm
Flange Height 14.5 mm
Depth (Excl. Flange) 174 mm
Magnet Diameter 225 mm
Chassis Shoulder Diameter 415.5 mm
Outer Bolt Circle 6x M8 on 455 mm PCD
Inner Bolt Circle N/A
Shipping Information
Nett Weight 14 Kg / 30.86 lb
Shipping Weight 15.25 Kg / 33.62 lb
*2.83V. Half space response measured in a 975 Litre sealed Enclosure. Blue Line = fundamental 45° off-axis.

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 400Hz) Program 700 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 700 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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