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PD.1851/2

  • Heavy-duty cast aluminium chassis for increased rigidity.
  • Power compression only 1.6dB at rated power.
  • A B/L in excess of 31 T/m.> Double suspension.
  • Appropriate for applications as diverse as scoop bins, conventional reflex cabinets and horn loaded systems.
  • Increased excursion over an 1850/2.
  • AVAILABLE IN SOLIDUS EDITION.


*2.83V. Half space response measured in a 975 Litre sealed enclosure.


 

*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 1000 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.

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SPECIFICATIONS
Nominal Diameter460 mm / 18"
Voice Coil Diameter127 mm / 5.0"
Nominal Impedance8 Ω
Available In4 Ω/ 8 Ω/ 16 Ω
Power Rating1000 w (A.E.S.)
Peak Power (6dB Crest Factor)4000 w (A.E.S.)
Sensitivity (1w / 1m)98 dB
Frequency Range35 Hz - 2 kHz
Recommended Enclosure Volume90 - 220 Litres
Resonance37.03 Hz
Voice Coil Winding Depth29 mm / 1.14"
Magnet Gap Depth12 mm / 0.47"
Flux Density Tesla1.18 Tesla
Magnet MaterialCeramic
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialAcrylic
Cone Surround MaterialPaper / HGBC
THIELE SMALL PARAMETERS
Fs 37.03 Hz
Re 5.23 Ω
Qms18.49
Qes0.27
Qts0.26
Le 1.04 mh
L2 2.34 mh
R2 4.92 Ω
Vas 160.46 litres
Mms 219.22 g
Sd 1164.16 cm2
Cms 84.33 µm/N
BL31.48 T/m
Xmax12 mm
Vd1.397 litres
Ref. Efficiency2.31%
MOUNTING AND SHIPPING INFORMATION
Overall Diameter474 mm
Width Across Flats459 mm
Flange Height14.5 mm
Depth (Excl. Flange)178 mm
Magnet Diameter280 mm
Chassis Shoulder Diameter414.5 mm
Outer Bolt Circle6 * M8 on 455mm PCD
Inner Bolt CircleN/A
Nett Weight24.8 Kg / 54.67 lb.
Shipping Weight28.6 Kg / 63.05 lb.
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