It s important that you can hear your music on stage. This wedge shaped 12 inch monitor delivers every sound clearly with a 12 inch speaker 4 x 10 piezo horn tweeter a frequency response of 45Hz to 20 000Hz and 150 watts RMS 300 watts peak power. Great quality monitors are very hard to find especially at a decent price. The Seismic Audio brand was designed to make the professional musician as well as the musician low on cash sound great. With your purchase you will receive one monitor pictured and described above. So put it in your cart today and get ready for years of trouble-free crystal clear sound!