We can supply the full range of Tannoy custom install speakers, please call sales on 01282 864048 if you require a custom quotation, bulk discount or just to enquire about any of the Tannoy custom install range, including the Tannoy iW4 DC. The Tannoy iw4 DC is a full bandwidth in wall speaker system. The 100mm (4.00") Tannoy Dual Concentric™ is a point source, constant directivity drive unit design comprising a multi fibre paper pulp mid bass cone and a 19mm (0.75") ferrofluid cooled, titanium dome HF unit with neodymium magnet system. The driver and passive frequency dividing network is mounted in an injection moulded, paintable front baffle manufactured from UV/weather resistant UL94V-0 ABS material. The mid-bass and tweeter sections of the Tannoy Dual Concentric™ constant directivity driver are coincidentally aligned to a true point source; ensuring a wide and controlled dispersion for optimum coverage; this while avoiding the massive loss of energy, in the vertical plane at the crossover frequency, inherent in two-way discreet designs. Featuring extended frequency response and very low distortion, the iw4 DC is equipped with dynamic high frequency protection. The four-way, spring loaded and self-aligning clamp mechanism makes for quick and easy installation. The iw4 DC loudspeaker has been designed for installation into standard stud partition wall systems. They may also be used in cavity wall installations constructed with standard thickness drywall as well as a wide range of other wall construction types up to a thickness of 25.4mm (1”). Complementing any style of decor, the perforated metal grille and discreet moulded baffle can be painted to blend seamlessly with any environment. This compact unit is specifically designed for applications requiring the combination of premium sonic quality for music and speech reinforcement and exceptional reliability and intelligibility. A steel back can is available as an optional accessory. 100mm (4") point source Dual Concentric™ driver Extended frequency response and very low distortion Wide, controlled constant directivity dispersion for optimum coverage Does not suffer from massive loss of energy in the vertical plane at crossover caused by two way discrete designs UV/weather resistant UL94V-0 ABS construction for structural integrity Dynamic high frequency protection 4 clamp self-aligning mounting system Ferrofluid cooled neodymium HF Five year warranty.