The Signature MPA 5150, Monster Home Theatre Music 5-Channel Reference Power Amplifier represents a breakthrough in performance and affordability for those who are passionate about movies and music. It includes special enhancements for audiophiles and videophiles who appreciate minute attention to detail, elegant design and a peak performance from their home theater system. It's all the power you need in a highly advanced but attractive and convenient chassis. The MPA 5150 was designed to meet the u ique needs of both a reference home theater and music experience. It's for those who like to listen to music at a high volume with all the complex harmonics and dynamic range reproduced as accurately as possible. It has the power and responsiveness nece sary to faithfully reproduce movie soundtracks from the subtlest rustle of leaves to the loudest explosions just as the director intended. If you're looking for the big sound you get from a separate power amplifier but have space limitations, the MPA 51 0 gives you five channels in one convenient chassis and a movie and music experience that will blow you away.