Features:
Metal basin,good quality dynamic sound.
Long stroke, clear voice, stronger base for speaker subwoofer.
Four hole plate cooling, high power and more durable.
Function: prevent excessive current, protect the electrical appliance.
Easy to use and durable.
Size:4 inch;
Nominal impedance:4 ;
Nominal power:8W ;
Sensitivity (2.83 V / 1 m): 88 dB;
Resonance frequency:42Hz;
Frequency:40-20 kHz;
Diameter of voice coil 100mm;
Width of voice coil: 94mm;
Horn highly: 34mm;
Magnetic circuit, type:shielded magnetic circuit;
Magnet material:high performance ferrite;
Force coefficient (BL value):6.5n / A;
Height of the magnetic gap:6.0mm;
CIS:857um / n;
Mechanical Q value:4.21;
Electric Q value:0.43;
The total value of Q was 0.39;

Package Included:
1 x Bass Horn
Product Attributes:

Weight (lbs.): 0.26 lb