To honor the rich audio history at Klipsch, the Heritage line was unveiled this year. This headphone amp is one of the standouts. Crafted with formed aluminum and genuine walnut veneer, the amp is capable of tackling digital audio up to 24-bit / 192 kHz resolution. It also features an asynchronous USB interface and both quarter-inch and XLR balanced outputs. You can also use it as a miniature preamp for a standard stereo system.