With the assistance of the Hsu Research engineering team, our state-of-the-art, three-way HT-8W in-wall speakers were specifically developed to exceed the demands of in-wall speakers! They incorporate pivoting 1" titanium tweeters that are center-mounted in their massive magnet 8" woofers. Their tweeters offer highs beyond audible range. For assistance in reproducing mids (lost in many other in-wall speakers), the HT-8W also include 2 1/2" poly midranges. Self resetting thermal cut-offs protect them from over-load. Metal mounting brackets are included for post-construction. Optional M-8R rough-in-kits are available for pre-construction. Ideal for use with all surround and music formats.