Visaton FRS 84 - 80mm 4 ohm Round High Power Fullrange Speaker 

Small size delivers surprisingly fine bass at lower sound levels. Rated at 30 Watts max

Specificaton:

Cut out diameter: 73mm

Depth: 44mm

Voice coil diameter: 20mm

Freq response: 100 to 20KHz

Resonant Freq: 115 to2120Hz

Max Power: 30 Watts

Sound Pressure Level:  82db @ 1W/1m

Excursion 2.5mm

Weight: 280gm