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The PD.155NR1 is intended as a dedicated woofer in bass reflex and horn loaded designs. The unit is also capable as a high power upper bass driver in multiway systems. The optimised radial neodymium motor system allows more efficient management of the magnetic flux, forced air venting and rear aluminium base plate keeps the motor temperature under control and reduces power compression to a minimum. The unit features a 5-inch high temperature copper voice coil capable of handling 900W (AES) the PD.155NR1 exhibits an average sensitivity of 97dB across its working band.
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|Type||Bass / Low-Mid Range Driver|
|Nominal Diameter||15" / 381 mm|
|Voice Coil Diameter||5.0" / 127 mm|
|Power Rating 1 2 *||1000 W (A.E.S.)|
|Available Impedance||4 Ω/ 8 Ω/ 16 Ω|
|Sensitivity (1W/ 1m)*||98.5 dB|
|Frequency Range||45 Hz - 2 kHz|
|Peak Power (6 dB Crest Factor)||4000 W (A.E.S.)|
|Voice Coil Winding Depth||1.20" / 30.50 mm|
|Recommended Enclosure Volume||75 - 200 Litres|
|Flux Density||1.18 Tesla|
|Magnet Gap Depth||13.00 mm / 0.51"|
|Former Material||Glass Fibre|
|Dust Dome Material||Solid Paper|
|Voice Coil Material||Copper|
|Suspension Material||Poly Cotton|
|Surround Material||M Roll Poly Cotton|
Thiele Small Parameters
|Le (@ 1 kHz)||2.350 mH|
Dimensions & Mounting
|Overall Diameter||408.30 mm|
|Width Across Flats||395|
|Flange Height||11.00 mm|
|Depth (Excl. Flange)||190.00 mm|
|Magnet Diameter||168 mm|
|Chassis Shoulder Diameter||356.00 mm|
|Outer Bolt Circle||x6 M6 on 395 mm PCD|
|Inner Bolt Circle||N/A|
|Nett Weight||10.00 Kg / 22.05 lb|
|Shipping Weight||11.00 Kg / 24.25 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 (45 to 450 Hz) Program 800 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 800 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.