North Korea revealed Saturday it is building a nuclear-powered submarine — a weapon that experts say would be “absolutely threatening to [South Korea] and the US.” Images showed Kim Jong Un ...

SEOUL, South Korea — North Korea unveiled for the first time a nuclear-powered submarine under construction, a weapons system that can pose a major security threat to South Korea and the United ...

The best subwoofer for your needs may depend on several factors, such as the size of your room (which can affect the power and volume you require), the space available for the subwoofer (do you ...

Can a small subwoofer still pack a serious punch? We put the MartinLogan Abyss 10 to the test to see how it handles both music and movies. With its compact design can it replace a bigger subwoofer?