10 inch parameters
Model: VK303
Tweeter: 4-inch tweeter
Midrange: 5-inch midrange speaker
Bass: 10-inch woofer
Power: 20~ 200W
Frequency response: 40Hz~20KHz
Impedance: 4Ω
Sensitivity: 89dB
Size: width 33.5 * height 53 * depth 32 cm

8 inch parameters
Model: VK28
Tweeter: 4-inch tweeter
Midrange: 4-inch midrange speaker
Bass: 8-inch woofer
Power: 10~150W
Frequency response: 52Hz~20KHz
Impedance: 4Ω
Sensitivity: 90dB
Size: width 28 * height 42.5 * depth 25.5 cm