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PD.124NR1

Bass / Mid Range Driver
  • 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
Klippel Verifeid
Radial Neo Technology

Diameter

12" / 304.8 mm

Coil Diameter

4.0" / 101.6 mm

Power Rating

1100 W (A.E.S.)

Frequency Range

45 Hz - 4 kHz

Sensitivity

99 dB

Xmax

8.5 mm

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" high temperature CCAW voice coil capable of handling 1100W (AES) and exhibits an average sensitivity of 99dB across its working band.

£190.00 MRRP Ex. VAT

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Frequency Response Graph
Impedance GRAPH
General Specifications
Type Bass / Mid Range Driver
Nominal Diameter 12" / 304.8 mm
Voice Coil Diameter 4.0" / 101.6 mm
Power Rating 1 2 * 1100 W (A.E.S.)
Available Impedance 4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)* 99 dB
Frequency Range 45 Hz - 4 kHz
Peak Power (6 dB Crest Factor) 4400 W (A.E.S.)
Resonance 58 Hz
Voice Coil Winding Depth 0.87" / 22.00 mm
Recommended Enclosure Volume 25 - 70 Litres
Flux Density 1.25 Tesla
Magnet Material Neodymium
Magnet Gap Depth 11.00 mm / 0.43"
Former Material Glass Fibre
Dust Dome Material Solid Paper
Voice Coil Material Copper Clad Aluminium
Cone Material Paper
Suspension Material Poly Cotton / silicone damping
Surround Material M Roll Poly Cotton
Thiele Small Parameters
Fs 58 Hz
Re 6.1 Ω
Qms 8.2
Qes 0.37
Qts 0.35
Le (@ 1 kHz) 2.600 mH
Vas 49 Litres
Mms 60.00 g
Sd 540 cm2
Cms 119.00 µm/N
BL 19.20 T/m
Xmax 8.5 mm
Vd 0.590 Litres
Ref. Efficiency 2.52%
EBP 156.76 Hz
Dimensions & Mounting
Overall Diameter 331.00 mm
Width Across Flats 320 mm
Flange Height 10.00 mm
Depth (Excl. Flange) 146.00 mm
Magnet Diameter 138 mm
Chassis Shoulder Diameter 282.00 mm
Outer Bolt Circle x4 M6 on 318 mm PCD
Inner Bolt Circle N/A
Shipping Information
Nett Weight 7.00 Kg / 15.43 lb
Shipping Weight 7.50 Kg / 16.53 lb
Notes
* 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 (55 to 550 Hz) Program 1000 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.
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