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The PD.185N02 has been designed to provide high fidelity, clean, undistorted, low frequency reproduction with the power handing and performance capabilities expected in pro audio. Very similar in characteristics to the PD.185N01, the PD.185N02 offers an increased BL force factor, over 30T/m, and a modified surround profile designed to limit the excursion of the cone while providing faster transient response. The unit also has a slightly higher power rating of 1100W (AES) and exhibits an average sensitivity of 98dB across its working bandwidth of 35Hz - 1kHz.
Featuring an FEA optimised, compact neodymium motor system configuration that allows more efficient management of the electromagnetic flux and greatly reduced stray magnetic fields. The PD.185N02 is able to provide the same power handling capabilities as much larger ferrite-based motor systems with the added benefit of greatly reduced weight. The motor system configuration and rear vent plate design have been developed in conjunction to allow effective heat dissipation and airflow around the 5", in-house wound, voice coil which aids power handling and reduces power compression effects. A large displacement dual suspension system combines with UK manufactured cone and surround to provide excellent linear control and mechanical stability with extremely low distortion and 45 mm peak to peak excursion before damage. Intended for use as a sub bass driver or woofer in bass reflex and horn loaded systems, the driver's versatility also allows it to be used well in closed box designs.
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|Type||Sub Bass Driver|
|Nominal Diameter||18" / 457.2 mm|
|Voice Coil Diameter||5.0" / 127 mm|
|Power Rating 1 2 *||1100 W (A.E.S.)|
|Available Impedance||4 Ω/ 8 Ω/ 16 Ω|
|Sensitivity (1W/ 1m)*||98 dB|
|Frequency Range||35 Hz - 1 kHz|
|Peak Power (6 dB Crest Factor)||4400 W (A.E.S.)|
|Voice Coil Winding Depth||28 mm / 1.10 "|
|Recommended Enclosure Volume||90 - 220 Litres|
|Flux Density||1.18 Tesla|
|Magnet Gap Depth||12 mm / 0.47 "|
|Former Material||Glass Fibre|
|Dust Dome Material||Paper|
|Voice Coil Material||Copper|
Thiele Small Parameters
|Le (@ 1 kHz)||0.57 mH|
Dimensions & Mounting
|Overall Diameter||474 mm|
|Width Across Flats||459 mm|
|Flange Height||14.5 mm|
|Depth (Excl. Flange)||185 mm|
|Magnet Diameter||166 mm|
|Chassis Shoulder Diameter||414.5 mm|
|Outer Bolt Circle||6x M8 on 455 mm PCD|
|Inner Bolt Circle||N/A|
|Nett Weight||11.5 Kg / 25.35 lb|
|Shipping Weight||12.9 Kg / 28.44 lb|
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 (35 to 350 Hz).
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1100 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.