Product Detail 300W + 300W RMS Power Output 600W + 600W Maximum Power Output 5-Way Protection Circuitry Ensures Proper Power System Performance +-8 Step Digital Key Controller for Adjusting the Musical Key to Fit Your Vocal Range 7-Band Graphic Equalizer to Fine Tune the Sound of Your Source Audio . The "VocoPro HV1200 Professional High Power Vocal Amplifier" is best product for you. We recommended VocoPro HV1200 Professional High Power Vocal Amplifier