The MAX9750A evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX9750A/B/C, MAX9751, and MAX9755. The MAX9750A/B/C, MAX9751, and MAX9755 are class AB amplifiers designed to drive stereo bridge-tied-load (BTL) speakers, and a stereo headphone in portable audio applications. The speaker amplifiers operate from a 4.5VDC to 5.5VDC power supply, and deliver 2 x 1.4W continuous power into a pair of 8 speakers. The headphone amplifiers operate from a 3VDC to 5.5VDC power supply, and deliver 110mW continuous power into a 16 stereo headphone.