Almost all home theater receivers or processors and some stereo receivers have this type of subwoofer output. It's usually just one cable with single RCA connectors on both ends. Sometimes you'll find that a receiver or amplifier does not have the LFE subwoofer output. Or it might be that the subwoofer doesn't have the LFE input. Or they could be spring clips like you'd see on the back of standard speakers.
Basic Home Theater AV Set Up Guide - Hooking It All Up
Hooking up surround sound to my PC | Tom's Guide Forum
Nowadays, picture standards have dramatically improved for television viewing. However, not much has changed when it comes to sound quality. All TVs feature built-in speakers. Because of the weak volume of the latest models, they produce thin-sounding audio.
How to hook up a 5.1 surround sound to a desktop computer
The AV receiver is the powerhouse of the home cinema experience. It binds together the sources, the speakers and what you see on screen. It brings cinema magic into your home, cocooning you in a soundscape of humour, drama, crashes, bangs and wallops. But AV receivers are imposing machines.
Surround sound means a sound that surrounds the listener from a complete angle of degrees. Everyone wants the best music and movie experience, and proper speaker placement for surround sound creates a home theater environment. You can build an immersive sound experience in your home just by placing your speakers correctly. Surround sound systems are also great for home parties.