Tweeter count 1 Tweeter size 1" Tweeter type Silk dome Mid-range count 1 Mid-range size 2" Mid-range type Silk dome Woofer count 2 Woofer size 6.5" Woofer type Carbon fiber+Aluminium Power handing 150W RMS Impedance (nominal) 4 ohm Sensitivity 88 dB Recommended amplifier power 50-500W Frequency response 80 Hz - 30k Hz(±2dB) Cabinet specifications (H × W × D) 735 × 240 × 116 mm Hole cut out (H × W)      710 × 215 mm Mounting depth >110mm Product weight (each)     10.5 kg