The Impulse 5i is a dual 15 inch enclosure designed for mid to near field applications. The design incorporates unique manifold technology to give low frequency extension whilst maintaining accurate and precise response. It is designed to be used in conjunction with the Impulse 3 or any other high quality mid hi enclosure. The unique construction of the Impulse 5 makes use of extensive internal bracing to keep panel resonances to a minimum. It is this and the careful selection of its transducers that provides the accurate, detailed and natural reproduction qualities for which the Impulse series has become known. All Impulse series enclosures are designed to be used with our Digidrive Plus system controller (preset programs supplied)