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PD.186/2

Sub Bass Driver
  • Heavy-duty cast aluminium chassis for increased rigidity.
  • Double suspension system.
  • Effective transducer in a variety of versatile applications.
  • Suitable for horn loaded or reflex designs.

Diameter

18" / 457.2 mm

Coil Diameter

5.0" / 127 mm

Power Rating

700 w (A.E.S.)

Frequency Range

30 Hz - 2 kHz

Sensitivity

95 dB

Xmax

10.5 mm
SKU: PD.186/2.8 Category:

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

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General Specifications
Type Sub Bass Driver
Nominal Diameter 18" / 457.2 mm
Voice Coil Diameter 5.0" / 127 mm
Power Rating 1 2 * 700 w (A.E.S.)
Available Impedance 4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)* 95 dB
Frequency Range 30 Hz - 2 kHz
Peak Power (6 dB Crest Factor) 2800 w (A.E.S.)
Resonance 34.18 Hz
Voice Coil Winding Depth 25 mm / 0.98"
Recommended Enclosure Volume 100 - 350 Litres
Flux Density 0.95 Tesla
Magnet Material Ceramic
Magnet Gap Depth 9 mm / 0.35"
Former Material Glass Fibre
Dust Dome Material Paper
Voice Coil Material Copper
Cone Material Paper
Suspension Material Dual Fabric
Surround Material Fabric
Thiele Small Parameters
Fs 34.18 Hz
Re 6.19 Ω
Qms 10.77
Qes 0.55
Qts 0.52
Le (@ 1 kHz) 1.95 mh
Vas 192.15 litres
Mms 203.93 g
Sd 1134.11 cm2
Cms 106.67 µm/N
BL 22.18 T/m
Xmax 10.5 mm
Vd 1.2 litres
Ref. Efficiency 2.05%
EBP 62.14 Hz
Dimensions & Mounting
Overall Diameter 474 mm
Width Across Flats 459 mm
Flange Height 14.5 mm
Depth (Excl. Flange) 173 mm
Magnet Diameter 220 mm
Chassis Shoulder Diameter 414.5 mm
Outer Bolt Circle 6 * M8 on 455mm PCD
Inner Bolt Circle N/A
Shipping Information
Nett Weight 15.1 Kg / 33.28 lb.
Shipping Weight 16.5 Kg / 36.37 lb.
Notes
*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 1400 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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