Precision Devices PD.154NR1

£376.00

Precision Devices PD.154NR1

£376.00

PD.154NR1

  • 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 reflex and horn loaded design enclosures.
  • Rear aluminum heat sink.

 

The PD.154NR1 is intended as a high power upper 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 700W (AES) the PD.154NR1 exhibits an average sensitivity of 97dB across its working band and will produce an SPL of 127.5 dB in an 85Ltr ported enclosure tuned to 50Hz.

 

* Half space response measured in a 950 Litre sealed enclosure.

*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 700 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.

PDF IconPD.154NR1 datasheet (PDF)


SPECIFICATIONS
Nominal Diameter
15" / 381 mm
Nominal Impedance
4 / 8 / 16 Ω
Voice Coil Diameter
4.0" / 101.6 mm
Power Rating
900 W (A.E.S.)
Peak Power (6dB Crest Factor)
3600 W (A.E.S.)
Sensitivity (1w / 1m)
99 dB
Frequency Range
45 Hz - 4 kHz
Recommended Enclosure Volume
75 - 200 Litres
Voice Coil Winding Depth
0.87" / 22.00 mm
Magnet Gap Depth
11.00 mm / 0.43"
Flux Density
1.25 Tesla
Magnet Material
Neodymium
Magnet Weight
N/A
Voice Coil Material
Copper Clad Aluminium
Former Material
Glass Fibre
Dust Dome Material
Solid Paper
Suspension Material
Poly Cotton / silicone damping
Cone Surround Material
Paper / M Roll Poly Cotton
THIELE SMALL PARAMETERS
Fs
46 Hz
Re
6.1 Ω
Qms
7.000
Qes
0.430
Qts
0.400
Le @1k
1.730 mH
Le @10k
0.700 mH
Vas
158 Litres
Mms
84.00 g
Sd
897 cm2
Cms
138.00 µm/N
BL
18.50 T/m
Xmax
8.5 mm
Vd
0.760 Litres
Reference Efficiency
3.50 %
EBP
106.98 Hz
MOUNTING AND SHIPPING INFORMATION
Overall Diameter
473.60 mm
Width Across Flats
458.73 mm
Flange Height
14.00 mm
Depth
210.00 mm
Magnet Diameter
138 mm
Chassis Shoulder Diameter
415.00 mm
Outer Bolt Circle
x6 M8 on 394 mm PCD
Inner Bolt Circle
N/A
Nett Weight
8.00 Kg / 17.64 lb
Shipping Weight
8.40 Kg / 18.52 lb


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