PD.1845-2N
- 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
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Diameter
Coil Diameter
Power Rating
Frequency Range
Sensitivity
Xmax
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.
£329.17 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 | 11.50 Kg / 25.35 lb |
| Shipping Weight | 13 Kg / 28.66 lb |
| Carton Size | (L) 490 mm (W) 490 mm (H) 260 mm |
Notes
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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