AMPLIFIED PA SPEAKER Mackie Thrash 1300W speakers feature no frills, raw power and reliability without sacrificing sound quality. Built on a legacy of legendary speaker design, the Thrash is built for loud vocals, screaming guitars, and face-melting keyboard solos. It's time to upgrade to a gig-worthy PA! - Ultra-efficient 1300W Class D amplifier - Built-Like-A-Tank™ while being lightweight for easy carrying - Frequency response: 52Hz - 20kHz (-10dB) - Maximum SPL: 125 dB - Flexible I/O - Inputs 1 and 2 have combo ground