Precision Devices PD.1852

Specifications:

• Nominal Diameter 18" / 460 mm
• Voice Coil Diameter 5.0" / 127 mm
• Nominal Impedance 8 Ohms
• Power Rating 1000 Watts (A.E.S.)
• Peak Power (6dB Crest Factor) 4000 Watts (A.E.S.)
• Sensitivity (1w - 1m) 98 dB
• Frequency Range 35 Hz - 2 kHz
• Recommended Enclosure Volume 90 -220 Litres
• Resonance 41.85 Hz
• Voice Coil Winding Depth 29 mm / 1.14"
• Magnet Gap Depth 12 mm / 0.453"
• Flux Density 1.18 Tesla
• Magnet Material Ceramic
• Voice Coil Material Copper
• Dust Dome Material Paper
• Suspension Material Dual silicone suspension
• Cone / Surround Material Paper / HGBC

Thiele Small Parameters

• Fs 41.85 Hz
• Re 5.18 Ω
• Qms 11.1
• Qes 0.34
• Qts 0.33
• Le 0.9 mh
• L2 1.83 mh
• R2 5.41 Ω
• Vas 120.38 litres
• Mms 231.21 g
• Sd 1164.16 cm2
• Cms 63 µm/N
• BL 30.47 T/m
• Xmax 12 mm
• Vd 1.397 litres
• Ref. Efficiency 2.34%

Mounting and Shipping Information

• Overall Diameter 474 mm
• Width Across Flat 459 mm
• Flange Height 14.5 mm
• Depth 178 mm
• Magnet Diameter 280 mm
• Chassis Shoulder Diameter 414.5 mm
• Outer Bolt Circle 6x M8 on 455 mm PCD
• Inner Bolt Circle N/A
• Nett Weight 23.8 Kg / 52.47 lb.
• Shipping Weight 25.8 Kg / 56.88 lb.

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