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PD.1845-1N

Sub Bass Driver
  • PRELIMINARY SPECIFICATIONS – SUBJECT TO CHANGE
  • New Ergonomic, Vented Cast Aluminium Chassis Offers Improved Thermal Control
  • Aluminium Demodulation Ring For Ultra-Low Distortion
  • 4.5” Split Winding Copper Clad Aluminium Voice Coil
  • Vented Long-Throw Motor System / Voice Coil Gap for Reduced Power Compression
  • Optimised Double Silicone Suspension System for Ultimate Cone Control
Klippel Verifeid

Diameter

18” / 457.2 mm

Coil Diameter

4.5” / 114.3 mm

Power Rating

1500 W (A.E.S.)

Frequency Range

30 Hz - 1 kHz

Sensitivity

98.8 dB

Xmax

16.00 mm

£344.00 MRRP Ex. VAT

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Frequency Response Graph
Impedance GRAPH
General Specifications
TypeSub Bass Driver
Nominal Diameter18” / 457.2 mm
Voice Coil Diameter4.5” / 114.3 mm
Power Rating 1 2 *1500 W (A.E.S.)
Available Impedance4 / 8 / 16 Ohm
Sensitivity (1W/ 1m)*98.8 dB
Frequency Range30 Hz - 1 kHz
Peak Power (6 dB Crest Factor)6000 W (A.E.S.)
Resonance34.1 Hz
Voice Coil Winding Depth16.00 mm / 0.63”
Recommended Enclosure Volume200 Litres
Flux Density0.92 Tesla
Magnet MaterialNeodymium
Magnet Gap Depth15.0 mm / 0.59”
Former MaterialGlass Fibre
Dust Dome MaterialSolid Paper
Voice Coil MaterialCopper Clad Aluminium
Cone MaterialPaper
Suspension MaterialPoly Cotton
Surround MaterialM Roll Poly Cotton
Thiele Small Parameters
Fs34.1 Hz
Re4.70 Ω
Qms10.961
Qes0.333
Qts0.324
Le (@ 1 kHz)1.578 mH
Le (@10 kHz)-
Vas179.04 Litres
Mms231.489 g
Sd1158.12 cm2
Cms0.094 mm/N
BL26.424 T/m
Xmax16.00 mm
Vd-
Ref. Efficiency2.65%
EBP102.40 Hz
Dimensions & Mounting
Overall Diameter474 mm
Width Across Flats459 mm
Flange Height14.5 mm
Depth (Excl. Flange)TBC
Magnet DiameterTBC
Chassis Shoulder Diameter415 mm
Outer Bolt Circlex6 M6 on 456 mm PCD
Shipping Information
Nett Weight10.90 kg / 24.03 lb
Shipping WeightTBC
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 (--- to --- Hz). Program ---- Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a ---- 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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