Precision Devices International Limited Precision Devices Made in UK
Precision Devices PD.CD1.5NR1 PD.184C01 - Out now PD.155N01 Precision Devices PD.CD1N the precision dna PD.123C01 - out now Precision Devices Compression Driver Range - Out Now

PD.122

  • Heavy-duty cast aluminium chassis for increased rigidity.
  • A B/L in excess of 24 T/m.
  • Smooth bass response in a reflex enclosure.
  • Suitable for use in small compact full range systems.
  • Easy integration with 1" or 2" compression drivers.


*2.83V. Half space response measured in a 50 Litre vented 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.

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.

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SPECIFICATIONS
Nominal Diameter300 mm / 12"
Voice Coil Diameter76 mm / 3.0"
Nominal Impedance8 Ω
Available In4 Ω/ 8 Ω/ 16 Ω
Power Rating400 w (A.E.S.)
Peak Power (6dB Crest Factor)1600 w (A.E.S.)
Sensitivity (1w / 1m)98 dB
Frequency Range45 Hz - 3.5 kHz
Recommended Enclosure Volume30 -120 Litres
Resonance59.23 Hz
Voice Coil Winding Depth17 mm / 0.67"
Magnet Gap Depth11 mm / 0.43"
Flux Density Tesla1.32 Tesla
Magnet MaterialCeramic
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialFabric
Cone Surround MaterialPaper / Fabric
THIELE SMALL PARAMETERS
Fs 59.23 Hz
Re 5.91 Ω
Qms15.9
Qes0.24
Qts0.24
Le 0.69 mh
L2 1.83 mh
R2 16.99 Ω
Vas 44.03 litres
Mms 65.12 g
Sd 530.93 cm2
Cms 110.89 µm/N
BL24.29 T/m
Xmax4.7 mm
Vd0.259 litres
Ref. Efficiency3.47%
MOUNTING AND SHIPPING INFORMATION
Overall Diameter330 mm
Width Across Flats320.5 mm
Flange Height10 mm
Depth (Excl. Flange)118 mm
Magnet Diameter200 mm
Chassis Shoulder Diameter282 mm
Outer Bolt Circle6 * M6 on 318mm PCD
Inner Bolt Circle8 * M6 on 293mm PCD
Nett Weight9.7 Kg / 21.38 lb.
Shipping Weight10.65 Kg / 23.48 lb.
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