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PD.2155-1N

Sub Bass Driver
  • PRELIMINARY SPECIFICATIONS
  • New Ergonomic, Vented Cast Aluminium Chassis Offers Improved Thermal Control
  • 5.5” Inside/ Outside Windings, Copper, Vented Voice Coil
  • Vented Voice Coil And Coil Gap Reduces Power Compression Effects
  • Double Silicone Spider With Optimised Compliance
  • Suitable For Hybrid Horn-Loaded Designs
Klippel Verifeid

Diameter

21” / 530 mm

Coil Diameter

5.5” / 138.7 mm

Power Rating

1500 W (A.E.S.)

Frequency Range

30 Hz - 300 Hz

Sensitivity

98 dB

Xmax

11.00 mm

The PD.2155-1N is an extremely low distortion and highly dynamic driver. Suitable for hybrid horn-loaded cabinet designs, the unit produces 98 dB sensitivity over it’s working band and is capable of handling 3000 W continuous program power.
Featuring a neodymium magnetic assembly generating very high force factor of 30 T/m and linear excursion. The design also incorporates an optimised suspension system and ribbed paper cone that provides exceptional mechanical stability and control. Providing the benefit of extremely low distortion and 60mm peak-to-peak excursion before damage.

MRRP Ex. VAT

no stock

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Frequency Response Graph
Impedance GRAPH
General Specifications
TypeSub Bass Driver
Nominal Diameter21” / 530 mm
Voice Coil Diameter5.5” / 138.7 mm
Power Rating 1 2 *1500 W (A.E.S.)
Available Impedance8 Ohm
Sensitivity (1W/ 1m)*98 dB
Frequency Range30 Hz - 300 Hz
Peak Power (6 dB Crest Factor)6000 W (A.E.S.)
Resonance33 Hz
Voice Coil Winding Depth26.00 mm / 1.02”
Recommended Enclosure Volume150 - 200 Litres
Flux Density1.45 Tesla
Magnet MaterialNeodymium
Magnet Gap Depth13.0 mm / 0.51”
Former MaterialGlass Fibre
Dust Dome MaterialSolid Paper
Voice Coil MaterialCopper
Cone MaterialPaper
Suspension MaterialFabric
Surround MaterialFabric
Thiele Small Parameters
Fs33 Hz
Re5.1 Ω
Qms9.8
Qes0.374
Qts0.36
Le (@ 1 kHz)2.4 mH
Le (@10 kHz)-
Vas241 Litres
Mms320 g
Sd1520 cm2
Cms73.4 μm/N
BL30 T/m
Xmax11.00 mm
Vd1.67 Litres
Ref. Efficiency2.2%
EBP88.24 Hz
Dimensions & Mounting
Overall Diameter550 mm
Width Across Flats532 mm
Flange Height14 mm
Depth (Excl. Flange)214 mm
Magnet Diameter184 mm
Chassis Shoulder Diameter492 mm
Outer Bolt Circlex6 M6 on 528 mm PCD
Shipping Information
Nett Weight12.50 kg / 27.56 lb
Shipping Weight14.5 kg / 29.56 lb
Notes
* 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 (20 to 200 Hz). Program 1500 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1000 Watt preconditioning period verified by Klippel LSI measurement.
4. 2.83V. Half space response measured in a 975 Litre sealed enclosure.

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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