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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
SKU: PD.8BM20.8 Category:

MRRP Ex. VAT

Sorry, this product is out of manufacture and no longer available.

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General Specifications
TypeBass / Mid Range Driver
Nominal Diameter8" / 200 mm
Voice Coil Diameter2.0" / 51 mm
Power Rating 1 2 *200 w (A.E.S.)
Available Impedance4 Ω/ 8 Ω/ 16 Ω
Sensitivity (1W/ 1m)*92 dB
Frequency Range50 Hz - 4.5 kHz
Peak Power (6 dB Crest Factor)800 w (A.E.S.)
Resonance49.04 Hz
Voice Coil Winding Depth13 mm / 0.51"
Recommended Enclosure Volume5 - 20 Litres
Flux Density1.29 Tesla
Magnet MaterialCeramic
Magnet Gap Depth6 mm / 0.24"
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Voice Coil MaterialCopper
Cone MaterialPaper
Suspension MaterialFabric
Surround MaterialRubber
Thiele Small Parameters
Fs49.04 Hz
Re5.86 Ω
Qms7.28
Qes0.42
Qts0.4
Le (@ 1 kHz)0.52 mh
Vas22.18 litres
Mms34.42 g
Sd226.98 cm2
Cms306.33 µm/N
BL12.48 T/m
Xmax4.5 mm
Vd0.102 litres
Ref. Efficiency0.90%
EBP116.76 Hz
Dimensions & Mounting
Overall Diameter210 mm
Width Across Flats0 mm
Flange Height8.5 mm
Depth (Excl. Flange)84.5 mm
Magnet Diameter135 mm
Chassis Shoulder Diameter191 mm
Outer Bolt Circle8 * M5 on 199mm PCD
Inner Bolt CircleN/A
Shipping Information
Nett Weight3.6 Kg / 7.94 lb.
Shipping Weight3.9 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.
Frequency Response & Impedance
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