Top quality Italian made 15 inch woofer midbass for pro audio sound systems. Many available, Get them while they last. Perfect Replacement for many powered top cabinets that require 4 ohm woofers. These were from an excess inventory liquidation of a well known top quality Pro Audio company and were originally intended for their premium line of powered speakers. Very clean and natural mid-range extension thanks to the balanced magnet circuit which places an additional magnet inside the coil above the center Pole. I have tons of speaker liquidation specials right now so contact me for any of your loudspeaker needs