Real 2 * 50W Stereo circuit design; The internal parallel the fever Philips 6600uf filter capacitor (reservoir) to meet the power needs of bursting, voice switching power supply side to solve delicate problems; thereby achieving high-level / all original parts manufacturing; advanced oxidation process grain pull aluminum shell; Delta OEM DC24V 4.5A (108W) power supply, over-current point 6A. The machine is BTL output, that is to negative side of speaker out is not public grounded (the two speakers cable must independent connect, no grounding together), we must strictly in accordance with the marking of plus or minus cable connection, this T amp is not recommend for car or bike use. Output : Speaker OUT (Left) x 1 pair (+ / -) Speaker OUT (Right) x 1 pair (+ / -) Power Indicator (Blue LED) around the volume control x 1 Power Supply input DC 24V 4.5A