The people who live and breathe car audio demanded a higher-performing, extremely intelligent (technologically speaking), dynamic product line. With their compact size and new SMC (surface, mount component) technology, the EXL SQ amplifiers are the epitome of competition and sound quality amplifiers all in one sleek design. Boasting audio precision quality control verification and Tiffany RCA jacks, these amplifiers offer high quality audio reproduction for the audiophile and everyday listener alike. This line has built in LEDs that light up for power/protection/clipping and have the latest Class-D circuit design.