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PD.8BM20
Bass / Mid Range Driver
- Discontinued – Special Order / OEM Only
- Contact info@precision-devices.com for order information
- A perfect choice for full range high power applications in compact cabinets
- Excels in compact sound systems
- Ideal for low profile cabinets with excellent low frequency response
Diameter
8" / 200 mm
Coil Diameter
2.0" / 51 mm
Power Rating
200 w (A.E.S.)
Frequency Range
50 Hz - 4.5 kHz
Sensitivity
92 dB
Xmax
4.5 mm
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General Specifications
| Type | Bass / Mid Range Driver |
| Available Impedance | 4 Ω/ 8 Ω/ 16 Ω |
| Nominal Diameter | 8" / 200 mm |
| Voice Coil Diameter | 2.0" / 51 mm |
| Peak Power (6 dB Crest Factor) * | 800 w (A.E.S.) |
| Power Rating 1 2 * | 200 w (A.E.S.) |
| Sensitivity (1W/ 1m) * | 92 dB |
| Frequency Range | 50 Hz - 4.5 kHz |
| Resonance | 49.04 Hz |
| Voice Coil Winding Depth | 13 mm / 0.51" |
| Recommended Enclosure Volume | 5 - 20 Litres |
| Flux Density | 1.29 Tesla |
| Magnet Material | Ceramic |
| Magnet Gap Depth | 6 mm / 0.24" |
| Former Material | Glass Fibre |
| Dust Dome Material | Paper |
| Voice Coil Material | Copper |
| Cone Material | Paper |
| Suspension Material | Fabric |
| Surround Material | Rubber |
Thiele Small Parameters
| Fs | 49.04 Hz |
| Re | 5.86 Ω |
| Qms | 7.28 |
| Qes | 0.42 |
| Qts | 0.4 |
| Le (@ 1 kHz) | 0.52 mh |
| Vas | 22.18 litres |
| Mms | 34.42 g |
| Sd | 226.98 cm2 |
| Cms | 306.33 µm/N |
| BL | 12.48 T/m |
| Xmax | 4.5 mm |
| Vd | 0.102 litres |
| Ref. Efficiency | 0.90% |
| EBP | 116.76 Hz |
Dimensions & Mounting
| Overall Diameter | 210 mm |
| Width Across Flats | 0 mm |
| Flange Height | 8.5 mm |
| Depth (Excl. Flange) | 84.5 mm |
| Magnet Diameter | 135 mm |
| Chassis Shoulder Diameter | 191 mm |
| Outer Bolt Circle | 8 * M5 on 199mm PCD |
| Inner Bolt Circle | N/A |
Shipping Information
| Nett Weight | 3.6 Kg / 7.94 lb. |
| Shipping Weight | 3.9 Kg / 8.6 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 (50 to 500 Hz) Program 800 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 200 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 (50 to 500 Hz) Program 800 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 200 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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