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PD.123ER

Mid Range Driver
  • Heavy-duty cast aluminium chassis for increased rigidity
  • A B/L in excess of 21 T/m
  • Extended mid range response up to 5kHz
  • Suitable for either direct radiating or popular horn loaded mid/high applications
  • Easy integration with small format compression drivers

Diameter

12" / 300 mm

Coil Diameter

3.0" / 76 mm

Power Rating

400 w (A.E.S.)

Frequency Range

50 Hz - 5 kHz

Sensitivity

97 dB

Xmax

2.5 mm
SKU: PD.123ER .8 Category:

MRRP Ex. VAT

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General Specifications
TypeMid Range Driver
Nominal Diameter12" / 300 mm
Voice Coil Diameter3.0" / 76 mm
Power Rating 1 2 *400 w (A.E.S.)
Available Impedance4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)*97 dB
Frequency Range50 Hz - 5 kHz
Peak Power (6 dB Crest Factor)1600 w (A.E.S.)
Resonance55.87 Hz
Voice Coil Winding Depth13 mm / 0.51"
Recommended Enclosure Volume20 - 80 Litres
Flux Density1.35 Tesla
Magnet MaterialCeramic
Magnet Gap Depth9 mm / 0.35"
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Voice Coil MaterialCopper
Cone MaterialPaper
Suspension MaterialFabric
Surround MaterialFabric
Thiele Small Parameters
Fs55.87 Hz
Re6.74 Ω
Qms13.03
Qes0.3
Qts0.29
Le (@ 1 kHz)0.25 mh
Vas54.54 litres
Mms58.92 g
Sd530.93 cm2
Cms138 µm/N
BL21.73 T/m
Xmax2.5 mm
Vd0.13 litres
Ref. Efficiency4.23%
EBP186.23 Hz
Dimensions & Mounting
Overall Diameter330 mm
Width Across Flats320.5 mm
Flange Height10 mm
Depth (Excl. Flange)117 mm
Magnet Diameter200 mm
Chassis Shoulder Diameter282 mm
Outer Bolt Circle6 * M6 on 318mm PCD
Inner Bolt Circle8 * M6 on 293mm PCD
Shipping Information
Nett Weight9.5 Kg / 20.94 lb.
Shipping Weight9.75 Kg / 21.49 lb.
Notes
*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.

1. AES Standard (60 to 600 Hz) Program 800 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 400 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.
Frequency Response & Impedance
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