The Audio-Technica ATH-R50x look and sound great, and they benefit from their open-ear design in ways that have made them my ...

Class AB amplifiers have been around for a long time, and even with Class D designs becoming more common, there’s still a ...

Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...

Class AB amplifiers have been around for a long time, and even with Class D designs becoming more common, there’s stil ...

Using the ATX 9801 is easy -- plug one end into a mains outlet, and it acts like a short extension lead with a digital display. The socket on the front accepts pretty much every power plug worldwide, ...

A video is circulating online with the claim that it shows the car blast at Kabul’s Shahr-e-Naw on January 19.