This is THE standard 4x12 ! The oversized Mesa Boogie® Rectifier® by which other quad-box cabinets are judged. It was designed to be the perfect companion to the high gain revolution created by the Dual and Triple Rectifiers®, providing thundering low-end punch and resonance which is perfectly tuned with the smooth, tailored midrange and articulate, clear high-end. Recto is the most popular 4x12 cabinet and an icon in heavy music, used on more hit recordings. From rock to metal amps: MASSIVE SOUND!