Precision Devices PD.186 - 2 Speaker Komponen Pasif Sub Bass Driver 18 inch 700 Watt Ceramic Magnet

Heavy-duty cast aluminium chassis for increased rigidity.
Double suspension system.
Effective transducer in a variety of versatile applications.
Suitable for horn loaded or reflex designs.

*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 (40 to 400 Hz) Program 1400 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 700 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.

SPECIFICATIONS
Nominal Diameter 460 mm / 18"
Voice Coil Diameter 127 mm / 5.0"
Nominal Impedance 8
Available In 4 / 8 / 16
Power Rating 700 w (A.E.S.)
Peak Power (6dB Crest Factor) 2800 w (A.E.S.)
Sensitivity (1w / 1m) 95 dB
Frequency Range 30 Hz - 2 kHz
Recommended Enclosure Volume 100 - 350 Litres
Resonance 34.18 Hz
Voice Coil Winding Depth 25 mm / 0.98"
Magnet Gap Depth 9 mm / 0.35"
Flux Density Tesla 0.95 Tesla
Magnet Material Ceramic
Voice Coil Material Copper
Former Material Glass Fibre
Dust Dome Material Paper
Suspension Material Dual Fabric
Cone Surround Material Paper / Fabric
THIELE SMALL PARAMETERS
Fs 34.18 Hz
Re 6.19
Qms 10.77
Qes 0.55
Qts 0.52
Le 1.95 mh
L2 3.06 mh
R2 8.07
Vas 192.15 litres
Mms 203.93 g
Sd 1134.11 cm2
Cms 106.67 m/N
BL 22.18 T/m
Xmax 10.5 mm
Vd 1.2 litres
Ref. Efficiency 2.05%

MOUNTING AND SHIPPING INFORMATION
Overall Diameter 474 mm
Width Across Flats 459 mm
Flange Height 14.5 mm
Depth (Excl. Flange) 173 mm
Magnet Diameter 220 mm
Chassis Shoulder Diameter 414.5 mm
Outer Bolt Circle 6 * M8 on 455mm PCD
Inner Bolt Circle N/A