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PDN.18BR40

Bass Driver
  • Discontinued – Special Order / OEM Only
  • Contact info@precision-devices.com for order information
  • Heavy-duty cast aluminium chassis for increased rigidity
  • A smooth extended mid range to allow easy crossover integration
  • Suitable for bass reflex designs
  • Lightweight neodymium magnet

Diameter

18" / 457.2 mm

Coil Diameter

4.0" / 101.6 mm

Power Rating

700 w (A.E.S.)

Frequency Range

35 Hz - 3 kHz

Sensitivity

97 dB

Xmax

10.5 mm
SKU: PDN.18BR40.8 Category:

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

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General Specifications
Type Bass Driver
Nominal Diameter 18" / 457.2 mm
Voice Coil Diameter 4.0" / 101.6 mm
Power Rating 1 2 * 700 w (A.E.S.)
Available Impedance 4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)* 97 dB
Frequency Range 35 Hz - 3 kHz
Peak Power (6 dB Crest Factor) 2800 w (A.E.S.)
Resonance 30.06 Hz
Voice Coil Winding Depth 25 mm / 0.98"
Recommended Enclosure Volume 100 - 350 Litres
Flux Density 1.32 Tesla
Magnet Material Neodymium
Magnet Gap Depth 9 mm / 0.35"
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 30.06 Hz
Re 5.13 Ω
Qms 10.31
Qes 0.39
Qts 0.37
Le (@ 1 kHz) 0.88 mh
Vas 314.66 litres
Mms 160.99 g
Sd 1134.11 cm2
Cms 174.33 µm/N
BL 20.04 T/m
Xmax 10.5 mm
Vd 1.19 litres
Ref. Efficiency 2.39%
EBP 77.07 Hz
Dimensions & Mounting
Overall Diameter 474 mm
Width Across Flats 458 mm
Flange Height 13 mm
Depth (Excl. Flange) 180 mm
Magnet Diameter 182 mm
Chassis Shoulder Diameter 415 mm
Outer Bolt Circle 6 * M8 on 456mm PCD
Inner Bolt Circle N/A
Shipping Information
Nett Weight 8.7 Kg / 19.18 lb.
Shipping Weight 10.1 Kg / 22.27 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 (50 to 500 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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