Precision Devices PD.1851/2 18" Loudspeaker

Precision Devices  PD.1851/2   18" Loudspeaker  NEW! AUTHORIZED DISTRIBUTOR!

BRAND NEW, UNOPENED

• • • SPECIFICATIONS
      Nominal Diameter	460 mm / 18"
      Voice Coil Diameter	127 mm / 5.0"
      Nominal Impedance	8 Ω
      Available In	4 Ω/ 8 Ω/ 16 Ω
      Power Rating	1000 w (A.E.S.)
      Peak Power (6dB Crest Factor)	4000 w (A.E.S.)
      Sensitivity (1w / 1m)	98 dB
      Frequency Range	35 Hz - 2 kHz
      Recommended Enclosure Volume	90 - 220 Litres
      Resonance	37.03 Hz
      Voice Coil Winding Depth	29 mm / 1.14"
      Magnet Gap Depth	12 mm / 0.47"
      Flux Density Tesla	1.18 Tesla
      Magnet Material	Ceramic
      Voice Coil Material	Copper
      Former Material	Glass Fibre
      Dust Dome Material	Paper
      Suspension Material	Acrylic
      Cone Surround Material	Paper / HGBC

      THIELE SMALL PARAMETERS
      Fs	37.03 Hz
      Re	5.23 Ω
      Qms	18.49
      Qes	0.27
      Qts	0.26
      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
      BL	31.48 T/m
      Xmax	12 mm
      Vd	1.397 litres
      Ref. Efficiency	2.31%

      MOUNTING AND SHIPPING INFORMATION
      Overall Diameter	474 mm
      Width Across Flats	459 mm
      Flange Height	14.5 mm
      Depth (Excl. Flange)	178 mm
      Magnet Diameter	280 mm
      Chassis Shoulder Diameter	414.5 mm
      Outer Bolt Circle	6 * M8 on 455mm PCD
      Inner Bolt Circle	N/A
      Nett Weight	24.8 Kg / 54.67 lb.
      Shipping Weight	28.6 Kg / 63.05 lb.

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