Entry-level by price, first class by nature, the FiiO M21 does what much more expensive devices claim to do: play music in excellent quality.

If your devices only support up to 4K at 60Hz, a "premium high-speed" HDMI cable (18Gbps, HDMI 2.0) is perfectly fine. Again, just avoid really old or thin cables. Early HDMI cables (HDMI 1.4 or older ...

NAD has announced two new integrated amplifiers that lean hard into the nostalgia of its late- 1970s 3030. The C 3030 and ...

Mola Mola has announced a new monoblock amplifier called Ossetra, whose circuit is an extension of the Dutch company’s already-established Trajectum amplifier technology. Yes, you’ll need two and yes, ...

Andy recommends favorite resources for basic op amp circuits and includes a portion of TI's AN-20. Test your knowledge with our op amp quiz; answer explanations are included. By 1969, a fledgling ...

At $1,499, the Rotel DX-3 is a versatile, all-in-one audio hub for everything from low-impedance in-ears to demanding high-impedance headphones without breaking a sweat. Rotel’s new DX-3 isn’t just ...

Operational amplifiers (op amps) may initially look intimidating, but with a bit of study, they can be easily understood and used in a variety of applications. Op amps can be thought of as a perfect ...

Give your ears a treat with the best DACs that convert digital files to analogue sound waves your ears can hear ...

How to evaluate a DAC’s analog output. How to avoid effects such as standing waves from disturbing measurements. How to adapt the fundamental frequency-response measurement method for use when digital ...