The HX Series models are affordable, reliable and quality power amplifiers. The amplifiers suit for musicians, DJs, and entertainers as well as houses of worship, cinemas, clubs, and pubs. The four models are HX900, HX1500, HX2000 and HX4000. Features include XLR inputs, user selectable input sensitivity of 0.755V or 1.4V, Speakon and binding post outputs, stereo / parallel / bridge-mono modes, LED indicators and forced-air cooling. All models include protection against shorts, no-load, on/off thumps and radio-frequency interference.