World's First Vocal Mixing Amplifier Designed for P.A. Speakers! If you are a working KJ, you know the importance of a solid, dependable power amplifier. Most vocal mixing amplifiers are designed for home use or to work with small KTV boxes, so they usually are built with fewer power amp ICs and are simply unreliable when powering large P.A. speakers. VocoPro had many requests from club KJs for a solid P.A.- style mixing amplifier. Our answer is the VocoPro HV-1200, a true high power PA vocal mixing amplifier. The HV-1200 utilizes our proven VP-600 PRO power amplifier designed with five-way protection circuitry, making this a high power workhorse. It's also a first class mixer using the VocoPro specially designed DSP Echo / Reverb board for the highest standard in vocal effects. There is even a built in compressor to prevent distortion from excessive vocals on all microphone channels. So if you work hard for your gig, why not get an amplifier that will work as hard as you.