All HT series speakers feature "D'Appolito" driver design specifically for Home Theatre, which gives great bass for audio listening as well as home theatre. The high end crossover design and components, coupled with the adjustable tweeter and woofer controls, ensure perfect sound in any theatre. The HT series can be installed either vertically or horizontally and fits into a standard 90mm stud wall. One of the best LCR combinations on the market.