The Quadral QUINTAS 602 is a bookshelf speaker for the home cinema set by Quadral. By adding these speakers to column speakers and a center speaker, you create a surround sound in your living room. The speaker can also be used separately. The 2 way bookshelf speaker connects to an amplifier of 60 to 120 watts for a powerful sound. The bass reflex port is located at the rear of the speaker. This improves the sound of the bass.