ESX SX-FOUR

With the SIGNUM SX Mini series, ESX expands its extensive car audio portfolio with four brand-new MINI Class-D amplifiers that set new standards with their minimal dimensions, outstanding sound, and surprisingly high power output of up to 600 watts RMS. These compact powerhouses utilize state-of-the-art Class D technology, which, thanks to its high efficiency, enables low heat generation, thus making the exceptionally space-saving design—only 83 mm wide and 38 mm high—possible. This makes the mini amplifiers ideal for discreet installations, whether under the seat, in the side panel, or in the trunk.   Thanks to its wide-range crossovers extending to 5000 Hz and multiple channels, the SX-FOUR is extremely versatile. Its very low total harmonic distortion (THD) of 0.004% makes it ideal for audiophile front/rear speaker combinations or fully active 2-way systems. Three-channel operation with a subwoofer is also possible thanks to its high power output of 250 watts RMS in bridged mode. Features Efficient Class D Technology with compact Dimensions Die-cast Aluminum Heatsink with optimal Cooling Properties RCA Inputs via Cable Connector   High Level Inputs with Error Protection System (EPS®) Auto Turn-On Function Start/Stop Ready Specifications 4-Channel Mini Class D Digital Amplifier 4 x 80/125 Watts RMS @ 4/2 Ω 2 x 250 Watts RMS @ 4 Ω bridged HPF/LPF 50 – 5000 Hz (FRONT) HPF/LPF 50 – 5000 Hz (REAR) Input Selector 2CH/4CH Dimensions 83 x 38 x 153 mm Low THD-Design: 0,004% @ 5W Efficiency up to 87% Downloads Owner’s Manual Test Review