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The most common use for a low-level subwoofer input is when you are using an AV receiver for multi-channel surround sound audio. Most AV receivers will have a dedicated subwoofer pre-out on the back. This will usually be marked as 'sub' or LFE.Dec 3, 2021
Why do subwoofers have 2 inputs?
Dual input allows the subwoofer an extra sensitivity adjustment. Normally, it would be enough to use a mono LFE subwoofer signal from its processor. If you have a processor with very low output so you can use a Y-splitter. By using both inputs with the same mono signal doubles the subwoofer sensitivity.
How do I connect my subwoofer input?
If you are using your subwoofer with a home theater receiver, the connection is simple: Just run an audio interconnect cable like this one from the receiver's subwoofer output to the subwoofer's line input (pictured above). If the subwoofer has an input labeled LFE, use that one.
Why does a subwoofer have a left and right input?
Since the subwoofer is responsible for low bass tones (aka its sole purpose), it requires a transmitter of low-frequency audio waves. The left and right channels are combined in an LFE cable to allow for a singular cable to evenly disperse the signals to the subwoofer.
Where do I plug my subwoofer into my receiver?
The preferred method of connecting a subwoofer is through the subwoofer output (labeled SUB OUT or SUBWOOFER) of a receiver using an LFE (Low-Frequency Effects) cable. Almost all home theater receivers and processors and some stereo receivers have this type of subwoofer output.
What is subwoofer LFE input?
The Low-Frequency Effects (LFE) channel found on subwoofers is known as LFE input. This LFE input channel provides you with a port where you can connect your subwoofer to a receiver. Nowadays, most subwoofers have a single LFE input channel.
What is speaker level input on subwoofer?
Speaker-level inputs let you hook up your powered sub by using the speaker connections from your receiver or amp, eliminating the need to run a separate RCA patch cable.
Can I connect subwoofer to line out?
Using a subwoofer cable (RCA cable), connect the subwoofer to the AV receiver by running the cable from the receiver's subwoofer output to the subwoofer's line input. Klipsch subwoofers can be connected via the LFE channel, the white RCA connection, or in a stereo pair by using both the white and red RCA connections.
Can you connect subwoofer to speaker output?
2. Subwoofers with speaker level inputs. If you own a subwoofer with speaker level inputs you're in luck! You can connect these directly to your receiver's speaker outputs, either by themselves (on unused speaker terminals) or at the same time with speakers connected to the receiver.