What the 50 mW per channel means for your headphone output stage
The MAX9720AEUE is a Class AB stereo headphone amplifier from Analog Devices' DirectDrive® series, delivering 50 mW per channel into a 32 Ω load. That power level is sized for consumer and portable line-level outputs — enough to drive most earbuds and on-ear headphones to comfortable listening levels without the distortion floor of a lower-bias class.
