Plex The Plex Preamplifier combines the 47-year-old Gallien design experience-Krueger with new technologies, to obtain the quality and flexibility that today's musicians require. 4-band active equalizer with contour control. Compressor with level adjustment, threshold, ratio, connection / release and gain reduction indicator. Overdrive and compressor selectors that can be operated by foot. Chromatic tuner with large LED display. Overdrive with volume controls and drives with multiple symmetry options e voicing.Ingresso AUX, Headphone Output, XLR direct output with ground / lift and pre / post selector, line output ¼ ''. Effects delivery / return. Interface. USB with signal input and output for direct recording. Ideal combination with amplified speakers of the MBP series. Dimensions: 13.55 x 14.30 x 3.65 cm. Weight 0.68 kg.