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PD.1845-2N

NEW!
Sub Bass Driver
  • 3600w Continuous Power Handling
  • Ergonomic, Vented Cast Aluminium Chassis Offers Improved Thermal Control
  • Aluminium Demodulation Ring For Ultra-low Distortion
  • 4.5” Four-layer, Copper Clad Aluminium Voice Coil
  • Vented Long-throw Motor System / Voice Coil Gap For Reduced Power Compression
  • Optimised Silicone Damped Dual Suspension System For Ultimate Cone Control
Klippel Verifeid

Diameter

18" / 457.2 mm

Coil Diameter

4.5" / 114.3 mm

Power Rating

1800 W (A.E.S.)

Frequency Range

30 Hz - 1 kHz

Sensitivity

97.5 dB

Xmax

18.00 mm

The PD.1845-2N follows the success of the PD.1845-1N. Featuring a longer 42mm, 4.5-inch diameter, four-layer, Copper-clad aluminium voice coil design on an angular split, ventilated, glass fibre bobbin. Additional X-max allows further incredible levels of power handling over the PD.1845-1N while keeping a very vibrant and warm tonal character over its bandwidth; perfect for delivering powerful, accurate bass in compact reflex and horn-loaded enclosure designs.

The PD.1845-2N’s vented cast-aluminium chassis and forced-air cooled, long-throw motor system offers effective thermal management in the motor system and voice coil gap, decreasing the energy lost to heat which allows for extreme power handling. An optimised laminated silicon suspension keeps the cone balanced and controlled even at high cone excursion, working harmoniously to deliver the best possible performance.

£378.40 MRRP Ex. VAT

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Frequency Response Graph
Impedance GRAPH
General Specifications
Type Sub Bass Driver
Available Impedance 4 / 8 / 16 Ohm
Nominal Diameter 18" / 457.2 mm
Voice Coil Diameter 4.5" / 114.3 mm
Peak Power (6 dB Crest Factor) * 7200 W (A.E.S.)
Power Rating 1 2 * 1800 W (A.E.S.)
Sensitivity (1W/ 1m) * 97.5 dB
Frequency Range 30 Hz - 1 kHz
Resonance 35 Hz
Voice Coil Winding Depth 42.00 mm / 1.65"
Recommended Enclosure Volume 110 Litres
Flux Density 0.85 Tesla
Magnet Material Neodymium
Magnet Gap Depth 15.00 mm / 0.59"
Former Material Glass Fibre
Dust Dome Material Solid Paper
Voice Coil Material Copper Clad Aluminium
Cone Material Paper
Suspension Material Poly Cotton
Surround Material M Roll Poly Cotton
Thiele Small Parameters
Fs 35 Hz
Re 5.2
Qms 13.5
Qes 0.4
Qts 0.388
Le (@ 1 kHz) 3.1 mH
Le (@10 kHz) 1.6 mH
Vas 157 Litres
Mms 250 g
Sd 1154 cm2
Cms 83 μm/N
BL 27 T/m
Xmax 18.00 mm
Vd 2.07 Litres
Ref. Efficiency 1.68 %
EBP 87.5 Hz
Dimensions & Mounting
Overall Diameter 474 mm
Width Across Flats 459 mm
Flange Height 14.5 mm
Depth (Excl. Flange) 200 mm
Magnet Diameter 150 mm
Chassis Shoulder Diameter 415 mm
Outer Bolt Circle x6 M8 on 455 mm PCD
Shipping Information
Nett Weight 10.90 kg / 24.03 lb
Shipping Weight 12.90 kg / 28.43 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. A.E.S. Standard (30 to 300- Hz). Program 1000 Watts.
2. A.E.S. 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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