The Lake People PHONE-AMP G105 MKII is a stereo headphone amplifier with XLR and RCA out. Featuring noise- and THD-optimized circuitry the G105 MKII has 5 five internally seltable gain presets so the overall gain can be altered to match YOUR favorite headphones. The amp is able to drive nearly all existing headphones from 16 - 600 ohms load impedance with excellent results!