Usually not by itself. If you do not have acoustically absorbent treatments to the sides and behind your amplifier, you may end up with a very roomy sound in the audience areas. We strongly recommend the use of sound absorbing panels on the lower half of the ClearSonic Panels as well as panels behind and beside your amplifier to soak up all that excess acoustic energy. AmpPacs with list and Sorber panels provide the best sound reduction.