The Peavey MAX 150 combo is designed for superior tone, performance and reliability in portable bass amplification. It delivers a huge bass tone with exclusive Peavey designs, including unique acoustic low-end enhancement. The EQ section includes three-band EQ, a gain boost featuring patented TransTube® tube emulation circuitry, and switchable presets like Contour, Mid-Shift and Bright. Thanks to the MAX's angled baffle design, the sound is directed right where you want it. The MAX also features a built-in chromatic tuner with mute, 1/8" headphone output,1/8" auxiliary input and  the amp with an XLR direct output with ground lift.