PD.24603BR

Sub Bass Driver
  • PRELIMINARY SPECIFICATIONS
  • New Ergonomic, Vented Cast Aluminium Chassis Offers Improved Thermal Control
  • 6.08” High-Power Copper Voice Coil
  • Vented Motor System and Voice Coil Gap For Reduced Power Compression
  • Optimised Compliance Suspension System Offers Perfect Linearity and Ultra-Mechanical Control
  • Incredible B/L Force Factor of Over 39 T/m
Klippel Verifeid
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The flagship PD.24603BR embodies major advancements for Precision Devices driver technology and is the result of an intensive 24 month research and development phase. The perfect combination of elegant design and superior audio output, the PD.24603BR represents best-in-class performance for professional audio designers.

Incorporating an unconventional neodymium motor system design, driving a 6.08” high-power, copper voice coil with an incredible B/L force factor of 39 T/m. The unit is capable of handling 1800W (AES) (3600 W program power) and exhibits 98 dB sensitivity over its working band of 20 - 200 Hz. The vented, die-cast aluminium chassis design combines with motor and coil venting systems to efficiently maintain optimal operating temperatures, increasing reliability and minimising power compression effects. Featuring an optimised compliance, large displacement, suspension system in conjunction with straight-sided, ribbed cone geometry. This sub bass behemoth offers the benefits of ultra-mechanical control, perfect linear excursion and low harmonic distortion. Delivering unsurpassed levels of LF output, while remaining fast and articulate.

Tuned for use primarily in bass reflex enclosures from 150-220 litres, the PD.24603BR is also capable of performing admirably in other cabinet design formats.

Frequency Response GRaPH
Impedance GRAPH
General Specifications
Nominal Diameter24” / 610 mm
Voice Coil Diameter6.08” / 152 mm
Available Impedances8 Ohm
Power Rating 1 2 *1800 W (A.E.S.)
Peak Power (6dB Crest Factor)*7200 W (A.E.S.)
Sensitivity (1W – 1m)*98 dB
Frequency Range20 Hz - 200 Hz
Recommended Enclosure Volume150 - 220 Litres
Resonance34 Hz
Voice Coil Winding Depth37.00 mm / 1.46”
Magnet Gap Depth15.0 mm / 0.59”
Flux Density1.5 Tesla
Magnet MaterialNeodymium
Magnet Weight
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialSolid Paper
Suspension MaterialFabric
Cone MaterialPaper
Surround MaterialFabric
Thiele Small Parameters
Fs34 Hz
Re5.3 Ω
Qms9.92
Qes0.32
Qts0.31
Le (@1 kHz)1.51 mH
Le (@10 kHz)4.01 mH
Vas355 Litres
Mms440 g
Sd2239 cm2
Cms49.8 μm/N
BL39.46 T/m
Xmax16.00 mm
Vd3.58 Litres
Ref. Efficiency4.19 %
EBP106.25 Hz
Dimensions & Mounting
Overall Diameter24” / 610 mm
Widths Across Flats610 mm
Flange Height17 mm
Depth (Excl. Flange)260 mm
Magnet Diameter194 mm
Chassis Shoulder Diameter573 mm
Outer Bolt Circlex6 M8 on 606 mm PCD
Inner Bolt Circle

 

Shipping Information
Nett Weight23.00 kg / 50.71 lb
Shipping Weight25.00 kg / 55.12 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 1800 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1200 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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