beyma PRO8Q300ND 8 inch mid bass

WOOFER MODEL - PRO8Q300ND

Specifications

Nominal Basket Diameter

8" / 200mm

Impedance

4 ohms

AES Power Rating

300 Watts

Program Power     600 Watts  
Frequency Response

70Hz - 7.0kHz

Sensitivity (1W/1m)

94dB

Voice Coil Diameter

2.5" / 62.4mm

Voice Coil Length    14.5 mm
Air Gap Height    7 mm
X Damage (peak to peak)    23 mm
BL Factor    10.3 N/A
Mounting Information

Overall Diameter    8.33" / 211.5mm
Bolt Circle Diameter    7.8" / 198mm
Baffle Cutout Diameter    7.1" / 181mm
No. Of Mounting Holes    8
Overall Depth    3.8" / 96mm
Net Weight    5.1 lb. / 2.3 kg.
Shipping Weight    5.5 lb. / 2.5 kg.
Materials

Basket    Die-Cast Aluminum
Cone    Carbon Fiber / Paper
Spider    Conex
Surround    Santoprene
Voice Coil    Aluminum Wire
Former    Fiber Glass
Metal Parts    Anti-Corrosion
Magnet    Neodymium
Thiele-Small Parameters

Resonant Frequency (fs)    65 Hz
Impedance (Re)    3.4 ohms
Coil Inductance (Le)    .2 mH
Mechanical Q (Qms)    17.8
Electrical Factor (Qes)    .34
Total Q (Qts)    .33
Comp. Equivelant Vol. (Vas)    .88 ft3 / 16 Liters
Voice Coil Overhang (Xmax)    6.0 mm
Moving Mass (Mms)    26 Grams
Surface Area of Cone (Sd)    0.0220m2
Reference Efficiency    1.2%
Displacement Volume (Vd)    132 cm3