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PD.188

Sub Bass Driver
  • Out of Manufacture – No longer Available
  • Heavy-duty cast aluminium chassis for increased rigidity
  • Double suspension system
  • A B/L in excess of 29 T/m
  • Effective transducer in a variety of versatile applications
  • Suitable for horn loaded or reflex designs

Diameter

18" / 457.2 mm

Coil Diameter

4.0" / 101.6 mm

Power Rating

600 w (A.E.S.)

Frequency Range

40 Hz - 3.5 kHz

Sensitivity

97.5 dB

Xmax

6 mm
SKU: PD.188.8 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 4.0" / 101.6 mm
Power Rating 1 2 * 600 w (A.E.S.)
Available Impedance 4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)* 97.5 dB
Frequency Range 40 Hz - 3.5 kHz
Peak Power (6 dB Crest Factor) 2400 w (A.E.S.)
Resonance 36.22 Hz
Voice Coil Winding Depth 19 mm / 0.75"
Recommended Enclosure Volume 100 - 350 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 Dual Fabric
Surround Material Fabric
Thiele Small Parameters
Fs 36.22 Hz
Re 5.86 Ω
Qms 13.04
Qes 0.27
Qts 0.26
Le (@ 1 kHz) 1.55 mh
Vas 201.69 litres
Mms 173.02 g
Sd 1134.11 cm2
Cms 111.5 µm/N
BL 29.28 T/m
Xmax 6 mm
Vd 0.68 litres
Ref. Efficiency 3.92%
EBP 134.14 Hz
Dimensions & Mounting
Overall Diameter 474 mm
Width Across Flats 458 mm
Flange Height 13 mm
Depth (Excl. Flange) 174 mm
Magnet Diameter 220 mm
Chassis Shoulder Diameter 415 mm
Outer Bolt Circle 6 * M8 on 456mm PCD
Inner Bolt Circle N/A
Shipping Information
Nett Weight 14 Kg / 30.86 lb.
Shipping Weight 15.25 Kg / 33.62 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 1200 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 600 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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