Luxsin X8 Intelligent DAC & Headphone Amplifier closed-back contact with the skin is

contact with the skin is pleasant even when the headphones are worn for long periods

a 3-minute quick charge will give you up to 60 minutes of play

plus the unit’s crossfeed functions

The ATH-SR50BT wireless over-ear headphones deliver the exceptionally pure audio of Sound Reality in a convenient wireless design

Luxsin X8 Intelligent DAC & Headphone Amplifier closed-back contact with the skin isLuxsin X8 Intelligent DAC & HP AMP 8 CS43198 DAC The X8 features eight Cirrus Logic CS43198 DAC chips in a true dual mono parallel architecture , with four DACs operating in parallel per channel. Left and right channels are fully independent in power supply, circuit layout, and signal path, minimizing crosstalk and interference. The parallel analog outputs are precisely summed to reduce noise and improve dynamic range, signal to noise ratio, and low