PD.154C001
Sub Bass Driver
- 4″ High temperature CCAW voice coil
- Composite alloy and steel pole piece, producing a uniform and stable magnetic field
- High BL driver in excess of 25 T/m


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Designed to faithfully reproduce powerful and accurate bass frequencies with minimal distortion and power compression. Suitable for sound reinforcement in a variety of enclosure designs.
General Specifications
Nominal Diameter | 15" / 381 mm |
Voice Coil Diameter | 4.0" / 101.6 mm |
Available Impedances | 4 Ω/ 8 Ω/ 16 Ω |
Power Rating 1 2 * | 900 W (A.E.S.) |
Peak Power (6dB Crest Factor)* | 3600 W (A.E.S.) |
Sensitivity (1W – 1m)* | 98.5 dB |
Frequency Range | 45 Hz - 1 kHz |
Recommended Enclosure Volume | 45 - 125 litres |
Resonance | 45 Hz |
Voice Coil Winding Depth | 0.87" / 22.00 mm |
Magnet Gap Depth | 10.00 mm / 0.39" |
Flux Density | 1.39 Tesla |
Magnet Material | Ceramic |
Magnet Weight | |
Voice Coil Material | Copper Clad Aluminium |
Former Material | Glass Fibre |
Dust Dome Material | Paper |
Suspension Material | Fabric |
Cone Material | Paper |
Surround Material | Fabric |
Thiele Small Parameters
Fs | 45 Hz |
Re | 6.1 Ω |
Qms | 4.29 |
Qes | 0.335 |
Qts | 0.311 |
Le (@1 kHz) | |
Le (@10 kHz) | 1.800 mH |
Vas | 128 Litres |
Mms | 119.00 g |
Sd | 897.5 cm2 |
Cms | 111.90 µm/N |
BL | 25.50 T/m |
Xmax | 8.2 mm |
Vd | 0.730 Litres |
Ref. Efficiency | 3.36% |
EBP | 134.33 Hz |
Dimensions & Mounting
Overall Diameter | 15" / 381 mm |
Widths Across Flats | 395 mm |
Flange Height | 11.00 mm |
Depth (Excl. Flange) | 154.10 mm |
Magnet Diameter | 220 mm |
Chassis Shoulder Diameter | 354.20 mm |
Outer Bolt Circle | x6 M6 on 394 mm PCD |
Inner Bolt Circle | N/A |
Shipping Information
Nett Weight | |
Shipping Weight |
Notes
* 2.83V. Half space response measured in a 950 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 (45 to 450 Hz) Program 700 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 700 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 (45 to 450 Hz) Program 700 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 700 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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