PD.1850/3

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
Klippel Verifeid
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Designed specifically to provide powerful and accurate bass frequencies with minimal distortion and power compression. The PD.1850/2 is the optimum choice for top of the range sub bass systems. Suitable for sound reinforcement in a variety of enclosure types such as scoop bins, conventional reflex cabinets and horn loaded systems.

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
* 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.
** Distortion is measured at 10% of the rated power (AES Standard).
1. AES Standard (35 to 350 Hz). Program 1600 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 800 Watt preconditioning period verified by Klippel LSI measurement.
4. 2.83V. Half space response measured in a 975 Litre sealed enclosure.
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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