If you insist on the deepest loudest bass - the RtR 1530's are the best choice for your system. These massive 3/4-in. thick MDF vented cabinets house heavy duty 15-in. woofers with high temperature voice coils for extremely deep bass you can feel. Their ferrofluid cooled tweeters and well engineered midrange drivers recreate smooth vocals and clean highs, combining all the virtues of the RtR 1230 towers, with even greater output! The 1530 towers are an exceptional value. Ideal for music or surround sound.