The JBL PRX425 dual 15" two-way loudspeaker system is the perfect choice for DJ's and bands who need low-frequency extension from the convenience of a stand-alone cabinet. PRX400 passive speakers were 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.