Eleven Audio XIAUDIO 'Formula S' High Purity Headphone Amplifier (Open Box) iem cables just like exquisite handicrafts and

just like exquisite handicrafts and beautiful

With years of experience and expertise in precision design and metal crafting technology

The Yamaha Headphone app puts control of key settings in the palm of your hand

3 dB Digital Audio Connectors Optical

3D printed solid uni-body shell

Eleven Audio XIAUDIO 'Formula S' High Purity Headphone Amplifier (Open Box) iem cables just like exquisite handicrafts andA newcomer shows the world the true sound of music. Solid state dual mono amplifiers deliver stunning speed and clarity, with hard hitting bass and drums and beautifully smooth tube like decay to cymbals and string instruments, on up beyond perception, the Formula S amp is tuned for the highest resolution music and headphones. Impeccable balance, smooth and clear to the source, excellent bass definition, simply put the dedicated headphone amp every