[Simon] wrote in to tell us about a headphone tube amp that he just built ... regulated power supply and a volume control for the input. Effort was made to keep the PCB single sided to facilitate ...

There are plenty of tube amplifiers now being manufactured, with a popular choice being headphone amplifiers that use a tube as a gain stage followed by an op-amp as a buffer with a low impedance ...

Rotel has announced the new DX-3 ($1,499), which the company calls “an exceptionally well specified, high-performance headphone amplifier, preamplifier, and stand-alone DAC in a superbly-designed ...

There's also wireless and wired connectivity, support for Hi-Res Audio and analogue inputs too. The goal is to deliver the ...

Learn more Last month, Rotel announced the DX-3, its first-ever headphone amplifier (which can also function as a ... It has a wide variety of wired inputs (including coaxial, optical, USB-B and RCA ...

Best retro DAC The FiiO KA15 (buy now) is a powerful, ultra-portable DAC/amp ... of headphones. But always check—unless you’re a fan of silence. Lastly, ensure the DAC has the right connections for ...