ECLER IC6CLASS-I is a low impedance 2-way loudspeaker which integrates a very careful and efficient selection of components (6 woofer + 1 tweeter), together with a mechanical design that provide a high quality audio ( Hi-Fidelity profile sound) and a very fast installation process, just using a basic set of tools. 16? 75w Aluminium grill. Delivered by units. Price per unit.