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 ...

Poland-based Feliks Audio specializes in high-end vacuum tube audio products including a line of rather unique headphone ...

Most tube enthusiasts will instantly recognize ... It would be interesting to subject it as a headphone amplifier to a series of audio tests to evaluate the effect of a mains transformer over ...

Although TEAC’s Reference 500 series includes UD models that combine both analog and digital features such as a DAC, the ...

The Envy Meisterwerk is a high-performance headphone amplifier that uses iconic Western Electric 300B tubes for a warm analog ...

Compatible with both Windows and macOS computers, this tiny little device which is no bigger than a cigarette lighter is a versatile headphone DAC and amplifier. When the BTR13 is used in USB ...

And despite the painfully unfunny brand name, Schiit’s tube-driven Lyr3 is a fine-sounding ... an even more accomplished DAC/headphone amp than the DACMagic 200M for sound – it’s an even ...

A D/A converter and headphone amplifier in one box. In lieu of connecting headphones to the analog audio-out headphone jack found on every computer and mobile device, the DAC/headphone amp ...