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PD.185N002
Sub Bass Driver
- Out of Manufacture – No longer Available
- Neodymium magnet assembly
- Vented chassis with forced air cooling vented voice coil gap
- Aluminium demodulation ring
- Dual suspension assembly
- 5″ High temperature copper voice coil
- Triple roll surround straight cone geometry
- For sub bass applications in bass reflex / horn loaded enclosures
Diameter
18" / 457.2 mm
Coil Diameter
5.0" / 127 mm
Power Rating
1000 W (A.E.S.)
Frequency Range
30 Hz - 300 Hz
Sensitivity
97.5 dB
Xmax
11.5 mm
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Frequency Response Graph
Impedance GRAPH
General Specifications
| Type | Sub Bass Driver |
| Available Impedance | 4 Ω/ 8 Ω/ 16 Ω |
| Nominal Diameter | 18" / 457.2 mm |
| Voice Coil Diameter | 5.0" / 127 mm |
| Peak Power (6 dB Crest Factor) * | 4000 W (A.E.S.) |
| Power Rating 1 2 * | 1000 W (A.E.S.) |
| Sensitivity (1W/ 1m) * | 97.5 dB |
| Frequency Range | 30 Hz - 300 Hz |
| Resonance | 36 Hz |
| Voice Coil Winding Depth | 1.14" / 29.00 mm |
| Recommended Enclosure Volume | 110 - 200 Litres |
| Flux Density | 1.20 Tesla |
| Magnet Material | Neodymium |
| Magnet Gap Depth | 13.50 mm / 0.53" |
| Former Material | Glass Fibre |
| Dust Dome Material | Paper |
| Voice Coil Material | Copper |
| Cone Material | Paper |
| Suspension Material | Poly Cotton |
| Surround Material | Fabric |
Thiele Small Parameters
| Fs | 36 Hz |
| Re | 5.4 Ω |
| Qms | 3.1 |
| Qes | 0.329 |
| Qts | 0.3 |
| Le (@ 1 kHz) | 3.070 mH |
| Vas | 226 Litres |
| Mms | 173.00 g |
| Sd | 1163 cm2 |
| Cms | 117.60 µm/N |
| BL | 25.00 T/m |
| Xmax | 11.5 mm |
| Vd | 1.360 Litres |
| Ref. Efficiency | 2.85% |
| EBP | 109.42 Hz |
Dimensions & Mounting
| Overall Diameter | 473.60 mm |
| Width Across Flats | 458.73 mm |
| Flange Height | 14.50 mm |
| Depth (Excl. Flange) | 174.00 mm |
| Magnet Diameter | 180 mm |
| Chassis Shoulder Diameter | 414.38 mm |
| Outer Bolt Circle | x6 M8 on 456 mm PCD |
| Inner Bolt Circle | N/A |
Shipping Information
| Nett Weight | 11.50 Kg / 25.35 lb |
| Shipping Weight | 12.20 Kg / 26.90 lb |
Notes
* 2.83V. Half space response measured in a 975 litre sealed enclosure.
*1 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.
** Distortion is measured at 10% of the rated power (AES Standard).
1. AES Standard (30 to 300 Hz) Program 1000 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1000 Watt preconditioning period.
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.
*1 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.
** Distortion is measured at 10% of the rated power (AES Standard).
1. AES Standard (30 to 300 Hz) Program 1000 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1000 Watt preconditioning period.
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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