Precision Devices PD1851Mk2 PD.1851/2

£399.00

Precision Devices PD1851Mk2 PD.1851/2

£399.00

Precision Devices PD1851Mk2 PD.1851/2

Designed specifically to provide powerful and accurate bass frequencies with minimal distortion and power compression. The PD.1851/2 is the optimum choice for top of the range sub bass systems where the ability to take punishment in the most demanding applications is the ultimate selection criterion. Suitable for sound reinforcement in a variety of enclosure types since it allows enclosure designers considerably more freedom with specialised loading techniques without having to make allowances for physical characteristics or power handling limitations which are typically the result of more traditional designs. Appropriate for applications as diverse as scoop bins, conventional reflex cabinets and horn loaded systems.

  • Brand new 18" chassis design
  • Heavy duty cast aluminium frame for increased rigidity
  • 170 oz ceramic magnet
  • Power compression only 1.7dB at rated power *
  • Distortion ** 2nd Harmonic < I % 3rd Harmonic < I %
  • Advanced magnetic assembly incorporating a composite alloy and steel pole piece giving a uniform and stable magnetic field, improving linear excursion and providing an efficient thermal path to dissipate the heat produced by the voice coil
  • A B/L of 31.5 T/m for fast accurate lows
  • Double suspension system maintaining a pure piston action for the moving mass and provides additional durability against the rigours of life on the road

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
  • Nett Weight 24.8 Kg / 54.67 lb.
  • Shipping Weight 28.6 Kg / 63.05 lb.