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PD.124NR1-LR

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

Intended as a high power bass / mid driver in traditional two way or multi way systems designs. The PD.124NR1's lower FS offers the ability for lower cabinet tuning and porting in reflex designs. The unit can also be used as a dedicated bass driver 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 1000W (AES).

SKU: PD.124NR1-LR.8 Categories: , , Tag:

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Frequency Response Graph
Impedance GRAPH
General Specifications
TypeBass / Mid Range Driver
Nominal Diameter12" / 304.8 mm
Voice Coil Diameter4.0" / 101.6 mm
Power Rating 1 2 *1100 W (A.E.S.)
Available Impedance4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)*99 dB
Frequency Range45 Hz - 4 kHz
Peak Power (6 dB Crest Factor)4400 W (A.E.S.)
Resonance45 Hz
Voice Coil Winding Depth0.87" / 22.00 mm
Recommended Enclosure Volume30 - 70 Litres
Flux Density1.3 Tesla
Magnet MaterialNeodymium
Magnet Gap Depth11.00 mm / 0.43"
Former MaterialGlass Fibre
Dust Dome MaterialSolid Paper
Voice Coil MaterialCopper Clad Aluminium
Cone MaterialPaper
Suspension MaterialPoly Cotton / silicone damping
Surround MaterialM Roll Poly Cotton
Thiele Small Parameters
Fs45 Hz
Re6.1 Ω
Qms7.3
Qes0.233
Qts0.225
Le (@ 1 kHz)1.47 mH
Vas78 litres
Mms66 g
Sd540 cm2
Cms189 µm/N
BL22 T/m
Xmax8.5 mm
Vd0.459 litres
Ref. Efficiency2.52
EBP193.13 Hz
Dimensions & Mounting
Overall Diameter331.00 mm
Width Across Flats320 mm
Flange Height10.00 mm
Depth (Excl. Flange)146.00 mm
Magnet Diameter138 mm
Chassis Shoulder Diameter280.00 mm
Outer Bolt Circlex4 M6 on 318 mm PCD
Inner Bolt CircleN/A
Shipping Information
Nett Weight7.00 Kg / 15.43 lb
Shipping Weight7.50 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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