PD.2150

Sub Bass Driver
  • Heavy-duty cast aluminium chassis for increased rigidity
  • Power compression 2dB at rated power
  • A B/L in excess of 37 T/m
  • Double suspension system
  • Suitable for horn loaded or bass reflex designs
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Download PDF Datasheet
General Specifications
Nominal Diameter21" / 530 mm
Voice Coil Diameter6" / 152 mm
Available Impedances4 Ω/ 8 Ω/ 16 Ω
Power Rating 1 2 *1000 w (A.E.S.)
Peak Power (6dB Crest Factor)*4000 w (A.E.S.)
Sensitivity (1W – 1m)*98 dB
Frequency Range30 Hz - 1 kHz
Recommended Enclosure Volume130 - 350 Litres
Resonance29.5 Hz
Voice Coil Winding Depth30 mm / 1.18"
Magnet Gap Depth15 mm / 0.59"
Flux Density1.1 Tesla
Magnet MaterialCeramic
Magnet Weight
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialDual Fabric
Cone MaterialPaper
Surround MaterialFabric
Thiele Small Parameters
Fs29.5 Hz
Re5.52 Ω
Qms14.21
Qes0.28
Qts0.27
Le (@1 kHz)
Le (@10 kHz)2.1 mh
Vas309.3 litres
Mms382.86 g
Sd1698.23 cm2
Cms76.4 µm/N
BL37.42 T/m
Xmax10.5 mm
Vd1.712 litres
Ref. Efficiency3.39%
EBP105.35 Hz

 

Dimensions & Mounting
Overall Diameter555 mm
Widths Across Flats535 mm
Flange Height15 mm
Depth (Excl. Flange)215 mm
Magnet Diameter316 mm
Chassis Shoulder Diameter495 mm
Outer Bolt Circle6 * M8 on 526
Inner Bolt CircleN/A

 

Shipping Information
Nett Weight31.75 Kg / 70 lb.
Shipping Weight33.75 Kg / 74.41 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 (30 to 300 Hz) Program 2000 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1000 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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