EXCELLENT SERIES | EXCELLENT 55 FEATURES1 Keyboard & 2 Mic / Accoustic InputsDigital Echo Effect3 Band Tone Control50 watts rms, 10” SpeakerPre-amp OutputBox dimention : W425 x H460 x D245mmProduct weight : 11.8 KgEXCELLENT Series EXCELLENT 55 EXCELLENT 77 EXCELLENT 700 EXCELLENT 800 EXCELLENT 3000