Read on to find out if the FiiO M21 is the answer for you.

The FiiO QX13 is a headphone amp/DAC with open and detailed sound to make your smartphone sing, but it's a little fiddly and ...

Our review of the 400 watt/ch AMPED 2400 Stereo Amplifier revealed bench numbers that didn’t match the claims. It delivers clean sound, but the build feels more like a DIY project than a $6K component ...

Arcam’s refreshed twist on its Award-winning A5 amplifier brings updated internals and an enhanced performance.

Are this year's major attacks the "cumulative effect of a kind of inaction on cyber security" from the government and big ...

By 24 September, three and a half weeks of output will have been lost ... among them Marks & Spencer and Co-op.

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 ...

Abstract: The article discusses an operational amplifier (Op-Amplifier) that is designed to be implemented based on GaAs combined techprocesses, which include nJFet FET and p-n-p bipolar transistors.

Operational amplifiers (op amps) are almost the perfect amplifier. As long as you keep a few important details in mind, their imperfections will seem invisible. Figure 1. This simple non-inverting op ...

Native SPICE elements that accurately replicate an op amp’s real-world behavior were nonexistent. A transconductance sourcing current from the rails and transitioning to a resistive state as the ...