These are designed for musical instrument amplifiers, but work great on a stereo amplifier designed for an 8 ohm load. Will sell one or both. Each has two 15" woofers and a horn tweeter. These are professional quality speakers, and have very flat response. Very solid bass. Not boomy at all. Work very well with a bass guitar. Rated for 800 watts peak, and are very efficient. They get very very loud. And both are in like new condition. They have 1/4" phone jacks, and speakon connectors, as shown.