Summary: Diameter: 8 Inch; Maximum Power: 1600 Watts; Low Frequency Response: 30 Hz; High Frequency Response: 200 Hz; Sensitivity: 89 dB; Frequency Response: 30-200 Hz; RMS Power Range: 400 Watts; Shallow Mount: No; Terminal: The spring terminals will accept bare wire up to 8 gauge.; Sealed Box: Infinity recommends a sealed enclosure with an internal volume of 0.4 ft??.; Ported Box: Infinity recommends a ported enclosure with an internal volume of 1.0 ft?? with one 3" diameter x 10" long port, resulting in a tuning frequency of 40 Hz. They also recommend using a sub-sonic filter.; Peak: 1600 watts; RMS: 400 watts; Recommended power range: 34 - 200W RMS; Voice Coil Diameter: 2"; Top-mount depth: 5-3/ ...