Precision Devices PD.186/2 18 inch Driver 8 OHMS (PD186 MK2)

Precision Devices PD.186/2 18" Driver 8 OHMS (PD186 MK2) PD.186 Mk2 700W

Designed to provide outstanding high power bass and sub bass, suitable for all systems demanding the best possible low frequency response.

A popular choice for horn loaded applications when the PD.186/2's full low end can deliver extremely high SPLs. Ideal for three-way direct radiating systems where the powerful bass comes into its own.

Well suited for use with PD. 121 and 1' / 2' compression drivers in direct radiating/horn loaded systems where the double suspension system allows it to thrive in the demanding touring sector.

• Brand new 18" chassis design
• Heavy duty cast aluminium frame for increased rigidity
• Capable of dissipating tremendous heat build up when driven in concert conditions
• 110 oz ceramic magnet
• Huge copper area and breathing arrangement of the voice coil ensures superior power compression performance
• 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 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 Ω
• Qms 10.77
• Qes 0.55
• Qts 0.52
• Le 1.95 mh
• L2 3.06 mh
• R2 8.07 Ω
• Vas 192.15 litres
• Mms 203.93 g
• Sd 1134.11 cm2
• Cms 106.67 µm/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
• Nett Weight 14.9 Kg / 32.85 lb.
• Shipping Weight 16.4 Kg / 36.16 lb.

*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.

** Distortion is measured at 10% of the rated power (AES Standard).

• 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.