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PD.2150
Sub Bass Driver
- Heavy-duty cast aluminium chassis for increased rigidity
- Power compression 2dB at rated power
- A B/L in excess of 37 T/m
- Double suspension system
- Suitable for horn loaded or bass reflex designs
Diameter
21" / 530 mm
Coil Diameter
6" / 152 mm
Power Rating
1000 w (A.E.S.)
Frequency Range
30 Hz - 1 kHz
Sensitivity
98 dB
Xmax
10.5 mm
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General Specifications
| Type | Sub Bass Driver |
| Nominal Diameter | 21" / 530 mm |
| Voice Coil Diameter | 6" / 152 mm |
| Power Rating 1 2 * | 1000 w (A.E.S.) |
| Available Impedance | 4 Ω/ 8 Ω/ 16 Ω |
| Sensitivity (1W/ 1m)* | 98 dB |
| Frequency Range | 30 Hz - 1 kHz |
| Peak Power (6 dB Crest Factor) | 4000 w (A.E.S.) |
| Resonance | 29.5 Hz |
| Voice Coil Winding Depth | 30 mm / 1.18" |
| Recommended Enclosure Volume | 130 - 350 Litres |
| Flux Density | 1.1 Tesla |
| Magnet Material | Ceramic |
| Magnet Gap Depth | 15 mm / 0.59" |
| Former Material | Glass Fibre |
| Dust Dome Material | Paper |
| Voice Coil Material | Copper |
| Cone Material | Paper |
| Suspension Material | Dual Fabric |
| Surround Material | Fabric |
Thiele Small Parameters
| Fs | 29.5 Hz |
| Re | 5.52 Ω |
| Qms | 14.21 |
| Qes | 0.28 |
| Qts | 0.27 |
| Le (@ 1 kHz) | 2.1 mh |
| Vas | 309.3 litres |
| Mms | 382.86 g |
| Sd | 1698.23 cm2 |
| Cms | 76.4 µm/N |
| BL | 37.42 T/m |
| Xmax | 10.5 mm |
| Vd | 1.712 litres |
| Ref. Efficiency | 3.39% |
| EBP | 105.35 Hz |
Dimensions & Mounting
| Overall Diameter | 555 mm |
| Width Across Flats | 535 mm |
| Flange Height | 15 mm |
| Depth (Excl. Flange) | 215 mm |
| Magnet Diameter | 316 mm |
| Chassis Shoulder Diameter | 495 mm |
| Outer Bolt Circle | 6 * M8 on 526 |
| Inner Bolt Circle | N/A |
Shipping Information
| Nett Weight | 31.75 Kg / 70 lb. |
| Shipping Weight | 33.75 Kg / 74.41 lb. |
Notes
*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.
1. AES Standard (30 to 300 Hz) Program 2000 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. AES Standard (30 to 300 Hz) Program 2000 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.
Frequency Response & Impedance
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