This high-performance, large Tier 3 in-ceiling loudspeaker is designed to deliver pristine, engaging acoustics where pristine sound quality is desired. It is a three-way model featuring the very latest acoustic technologies from Monitor Audio. This really is the last word in installed performance, featuring an RDT III bass driver, IDC II midrange driver and IDC II tweeter with UD Waveguide II. This combination ensures levels of acoustic transparency and detail found in Monitor Audio’s premium loudspeaker ranges, where much of his acoustic technology was developed. As a Controlled Performance (CP) model, it is fitted with a fully sealed back box that provides an ideal air load for the drivers, optimising mid-range and bass performance while maintaining sonic consistency regardless of interior wall construction. These rigid, mineral filled enclosures reduce the sound from the back of the cabinet by around 30 dB. This range guarantees excellent audio quality and versatility, for superior level of sound isolation between rooms and floors. It has a cut out diameter of 248 mm and uses the patented Quik-Link speaker cable connecter, which revolutionises the ease and speed of speaker installation. Tri-Grip has also been evolved for simple, reliable and strong fitment. Optional square grille can be used with this model.