Authentic vacuum tube warmth and character with class AB amplifier efficiency produces an articulate and natural sonic experience Powerful 50 watts per channel of audiophile fidelity that is sure to please even the most discerning ear Convenient input connections including USB, optical, coaxial, phono, stereo RCA, and Bluetooth V5 Mono RCA subwoofer output gives you the ability to enjoy a 2.1 system when connected to an active sub Brushed aluminum housing with vintage front panel VU meters lends a clean, modern look with a nod to classic aesthetics