In a standard 5.1 surround setup, which list correctly identifies all six channels used for front left, front right, center, LFE, left surround, and right surround?

• A. Front Left, Front Right, Center, Sub, Back Left, Back Right.
• B. Left, Right, Center, LFE, Left Surround, Right Surround.
• C. Left Front, Right Front, Center, Sub, Side Left, Side Right.
• D. Left Channel, Right Channel, Center, Low Frequency, Rear Left, Rear Right.

Answer: (B)

In a standard 5.1 setup, there are six channels: Front Left, Front Right, Center, Low Frequency Effects (LFE), Left Surround, and Right Surround. LFE is a dedicated bass channel meant for the subwoofer, not just a general “Sub” label, and the two surround channels are the Left Surround and Right Surround positioned to envelop the listener from the sides. The combination of these six channels—Left, Right, Center, LFE, Left Surround, Right Surround—is what defines 5.1 labeling. Other options mix up elements (like using Sub instead of LFE or naming rear channels as Back) and don’t reflect the standard 5.1 channel naming, which is why the listed six channels above is the correct identification.