PD1850/2

Sub Bass Driver
  • Heavy-duty cast aluminium chassis for increased rigidity.
  • Power compression only 1.6dB at rated power.
  • A B/L in excess of 30 T/m.
  • Double suspension.
  • Appropriate for applications as diverse as scoop bins, conventional reflex cabinets and horn loaded systems.
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Download PDF Datasheet
General Specifications
Nominal Diameter18" / 457.2 mm
Voice Coil Diameter5.0" / 127 mm
Available Impedances4 Ω/ 8 Ω/ 16 Ω
Power Rating 1 2 *800 w (A.E.S.)
Peak Power (6dB Crest Factor)*3200 w (A.E.S.)
Sensitivity (1W – 1m)*98 dB
Frequency Range35 Hz - 2 kHz
Recommended Enclosure Volume90 - 220 Litres
Resonance33.15 Hz
Voice Coil Winding Depth28 mm / 1.1"
Magnet Gap Depth12 mm / 0.47"
Flux Density1.18 Tesla
Magnet MaterialCeramic
Magnet Weight
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialFabric
Cone MaterialPaper
Surround MaterialFabric
Thiele Small Parameters
Fs33.15 Hz
Re5.22 Ω
Qms15.42
Qes0.24
Qts0.24
Le (@1 kHz)
Le (@10 kHz)1.33 mh
Vas203.84 litres
Mms215.24 g
Sd1164.16 cm2
Cms107 µm/N
BL30.99 T/m
Xmax11.05 mm
Vd1.28 litres
Ref. Efficiency2.88%
EBP138.12 Hz

 

Dimensions & Mounting
Overall Diameter474 mm
Widths Across Flats459 mm
Flange Height14.5 mm
Depth (Excl. Flange)175 mm
Magnet Diameter280 mm
Chassis Shoulder Diameter414.5 mm
Outer Bolt Circle6 * M8 on 455mm PCD
Inner Bolt CircleN/A

 

Shipping Information
Nett Weight23 Kg / 50.70 lb.
Shipping Weight26.3 Kg / 57.98 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 (35 to 350 Hz) Program 1600 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 800 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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