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The PD.185N01 is a versatile drive unit intended for use as a sub bass driver or woofer component that offers outstanding imaging, clean, undistorted, high fidelity sound coupled with pro audio power handling and performance. Although intended for use in bass reflex and closed box designs the unit also performs well in horn loaded applications.
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.185N01 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. Power handling is rated at 1000 W (AES) with an average sensitivity of 98 dB across the driver's working bandwidth of 35 Hz - 1 kHz. High quality, UK manufactured cone and surround combine with a large displacement, dual suspension system that provides excellent linear control and mechanical stability, allowing 45 mm peak to peak excursion before damage. The materials have also been carefully selected to provide optimum high fidelity audio reproduction.
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|Type||Sub Bass Driver|
|Available Impedance||4 Ω/ 8 Ω/ 16 Ω|
|Nominal Diameter||18" / 457.2 mm|
|Voice Coil Diameter||5.0" / 127 mm|
|Peak Power (6 dB Crest Factor) *||4000 W (A.E.S.)|
|Power Rating 1 2 *||1000 W (A.E.S.)|
|Sensitivity (1W/ 1m) *||98 dB|
|Frequency Range||35 Hz - 1 kHz|
|Voice Coil Winding Depth||28 mm / 1.10 "|
|Recommended Enclosure Volume||90 - 220 Litres|
|Flux Density||1.05 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)||0.62 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|
1. AES Standard (35 to 350 Hz)
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1000 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.