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Radial neodymium motor structure.Vented cast aluminium chassis for improved thermal control of voice coil.Forced air cooling vented voice coil gap.Aluminium demodulation ring.Dual spider configuration with silicone based damping control.4″ High temperature CCAW voice coil.For two way ported applications and bass reinforcement in horn loaded designs.Rear aluminium heat sink. The PD.124NR1 is intended as a high power mid bass driver in multiway systems. The unit can also be used as a dedicated woofer in bass reflex and horn loaded designs. 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 4-inch, high temperature, CCAW voice coil capable of handling 800W (AES). The PD.154NR1 exhibits an average sensitivity of 97dB across its working band and will produce an SPL of 126.5 dB in an 45Ltr ported enclosure tuned to 60Hz.
SPECIFICATIONSNominal Diameter12″ / 304.8 mmNominal Impedance8 Voice Coil Diameter4.0″ / 101.6 mmPower Rating1000 W (A.E.S.)Peak Power (6dB Crest Factor)4000 W (A.E.S.)Sensitivity (1w / 1m)99 dBFrequency Range45 Hz – 4 kHzRecommended Enclosure Volume25 – 70 LitresVoice Coil Winding Depth0.87″ / 22.00 mmMagnet Gap Depth11.00 mm / 0.43″Flux Density1.25 TeslaMagnet MaterialNeodymiumMagnet WeightN/AVoice Coil MaterialCopper Clad AluminiumFormer MaterialGlass FibreDust Dome MaterialSolid PaperSuspension MaterialPoly Cotton / silicone dampingCone Surround MaterialPaper / M Roll Poly CottonTHIELE SMALL PARAMETERSFs58 HzRe6.1 Qms8.200Qes0.370Qts0.350Le @1k2.600 mHLe @10k0.750 mHVas49 LitresMms60.00 gSd540 cm2Cms119.00 m/NBL19.20 T/mXmax8.5 mmVd0.590 LitresReference Efficiency2.52 %EBP156.76 HzMOUNTING AND SHIPPING INFORMATIONOverall Diameter331.00 mmWidth Across Flats320 mmFlange Height10.00 mmDepth146.00 mmMagnet Diameter138 mmChassis Shoulder Diameter280.00 mmOuter Bolt Circlex4 M6 on 318 mm PCDInner Bolt CircleN/ANett Weight7.00 Kg / 15.43 lbShipping Weight7.50 Kg / 16.53 lbMOST LOCATIONS 7-9 DAYS
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Category: Musical Instruments:Pro Audio Equipment:Speaker Drivers and Horns
Location: London