The What Hi-Fi? testing process is uniquely comprehensive: every amp under scrutiny is compared to the current class leader at its price point in our dedicated listening rooms. Such thoroughness and ...

You see, headphone amplifiers boast performance-first audio circuitry and have been designed primarily to do one thing: to squeeze every ounce of sonic ability out of the headphones plugged into them.

Arctic amplification is the intense warming in the Arctic. Greenhouse gases raise air temperatures, melting sea ice and thawing permafrost and initiating a feedback loop accelerating climate change.