The hd x81-Series are lightweight, compact and decent designed 2-way passive loudspeakers and consists of the universal loudspeakers hd 181 and hd 281 as well as the Low-Profile-Monitor hd 281M. Special developed 8 inch drivers in combination with an 1 inch compression driver with kapton diaphragm for improved HF extension and response linearity with excellent dynamics ensure perfect reproduction of speech and music. The eight inch woofer is superb for reproduction of vocals and instruments with its fast attack and decay. The HF driver is horn loaded with specially designed elliptical horn for smooth coverage pattern 80° x 60°.