[Simon] wrote in to tell us about a headphone tube amp that he just built. It is based on schematics at diyaudioprojects.com that were actually featured on Hackaday in the past. [Simon’s ...
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 ...
The other difference is that it depends on its own built-in battery for power. Finally, there’s a Bluetooth (or “BT”) mode that turns the FiiO BTR13 into a headphone amp and Bluetooth decoder; this ...
And now the time has come to see what is under the hood and how well it performs. At the M23’s engineering core are Asahi Kasei’s premium DAC chips combo (AK4499EX and AK4191) and the refined ‘+’ ...
The digital-to-analog converter, filtering circuits, and headphone amplifier will then all be housed in the headset near the headphones. Moving this circuitry slightly closer to the final ...