Phase Linear Aliante SI 12 hi-end subwoofer

Hi-End 12” subwoofer Hand made in Italy 19-300 Hz 4 Ohm 400 watt RMS 900 peak power 10mm thick aluminum honeycomb sandwiched between layers of fiberglass and Kevlar to form a plat piston cone. One way, with heat resistant 5'' voice coil for great durability submerged in ferrofluid.  Perfect condition. Fitted in 45 litters sealed box. Box have minor marks. From Japan, not used here, will be connected for audition.