Check the listing for details. JBL PRX425 15" 2-Way Loudspeaker System Refurbished. Condition: Excellent - Refurbished. Listed at 895.49 USD. The JBL PRX425 is a passive speaker equipped with dual 15" speakers and a high-frequency horn driver, designed to provide the sensitivity, frequency response and power handling needed for almost any professional audio environment, while still being reasonably priced. Whether you use a powered mixer or an equipment rack full of amps and signal processing, PRX400 passive speakers deliver the sound power and bandwidth necessary to make loud music sound natural and even quiet speech intelligible.The PRX425 is made from tour-tested JBL components and feature professional connectivity via Neutrik Speakon combination connectors. It is artfully constructed from an 18mm Birch/Poplar multi-laminate hardwood covered in highly resilient DuraFlex and feature rugged 16-gauge steel grilles.