HP-22 Board Option:Unpopulated PCB many consumer and prosumer sources

many consumer and prosumer sources do not feature differential outputs

The main ±12 V output is provided by a pair of ultra-low noise linear voltage regulators from Texas Instruments

Sound Quality

that are popular in DIY audio circles

HP-22 Board Option:Unpopulated PCB many consumer and prosumer sourcesBuild a high performance headphone amplifier for less than $100! The HP 22 is an all DIY, low distortion headphone amplifier. It provides 200 mW into 300 at vanishingly low distortion and easily drives headphones down to 32 . With its ultra low noise floor, it the HP 22 also lends itself well to driving IEMs. With its ample output power and incredibly low distortion, the HP 22 provides a clean sound with a very realistic sound stage. Technical