What Is Subwoofer LFE?

What is an LFE input on a subwoofer?

In brief, LFE cables connect your subwoofer (low-frequency speaker) to its receiver.

Most people have found that using an LFE input in a subwoofer will carry the appropriate sound from the subwoofer to the receiver and, thus producing the effective audio..

Is LFE the same as subwoofer out?

The difference between the LFE channel and the subwoofer output is that the LFE channel is used to carry additional bass information in the Dolby Digital program while the subwoofer output represents how some or all of the bass information will be reproduced.

What phase should I set my subwoofer?

Typically, though, phase is left at 0° for most applications. While seated in your listening sweet spot, play music with bass content that is familiar to you and then have someone switch the 0/180 phase switch on the sub to 180-degrees. This will let you determine if the bass sounds louder in your seating position.

What should I set LPF for LFE?

This is the high frequency cutoff point for the LFE, also known as the . 1 channel in a 5.1/6.1/7.1 surround source. In practice this should always be set to 120Hz since the LFE channel supports information up to that frequency.

Is subwoofer cable coaxial?

Subwoofer cables are a type of audio cable that can greatly increase sound quality. They are used for the purpose of connecting any media device that supports coaxial (S/PDIF) audio interface. Subwoofer cables contain RCA connectors on both ends. … Subwoofer cables help make sound feel real.

What is phase in subwoofer normal or reverse?

Normal – the subwoofer is ‘in-phase’ with the other speakers; ie when the other speakers move in, the subwoofer moves in and when the other speakers move out, the subwoofer moves out. Reverse – 180 degrees out of phase. The subwoofer moves in when the other speakers move out.

Do subwoofer cables make a difference?

No, any RCA cable should work. Longer runs require better shielding, but there’s nothing special about the cable itself. Check out monoprice. And for those about to bring up true 75ohm, it won’t make a difference for subwoofers.

What should LFE level be set at?

Select the low-frequency effect (LFE) level of each type of signal from “0dB” to “-∞dB”. If the low-frequency effect sound is too strong, select “-20dB” or “-∞dB”. This setting works on LFE channel volume of Dolby Digital and Dolby Digital Plus sources.

What makes a subwoofer good?

A good subwoofer needs to have a very linear driver (which is expensive), an accurate and powerful amplifier (which is expensive), and a well designed and built cabinet (which is… expensive). But cutting corners on any of these aspects is a false economy.

Should I use LFE subwoofer?

You should use the LFE/. 1 input any time a REL subwoofer is being used in a Home Theater system. The Subwoofer/LFE/. 1 output from the processor or receiver should be connected to the .

What Should low pass filter be set at for subwoofer?

As a general rule, the Low-Pass Filter should be set at a value approximately equal to (or below) 70% of your main speaker’s lowest frequency response. For example, your speaker’s frequency response goes down to 43Hz. 70% of 43Hz equals 30.1, so you should set the subwoofer’s low pass filter to 30Hz.

Is LFE digital or analog?

According to the standard, Dolby digital 5.1 consists of 5 audio channels plus one low band channel for Low Frequency Effects (LFE). The LFE channel provides low band audio below 120Hz as opposed to the full frequency of the 5 main channels. This is the same for 7.1, just the number or main channels are increased by 2.

How do I know if my subwoofer is out of phase?

If your subwoofer is fourteen feet away from your mains (half the distance of the wave) your subwoofer is now out of phase 180° with your mains. Of course, a 100Hz signal is only 11.25 feet long so if your subwoofer is 5.625 feet away from your mains it is 180° out of phase with them.

What is best Hz for subwoofer?

A 20-120 Hz rating is best for bass in most subwoofers. The lower the Hz, the more is the bass you can get. Some of the best subwoofers in the market have this Hz range. If you are buying a subwoofer that has a fixed Hz rating, you should ensure it is lower than 80 Hz if the bass is important to you.

What does LFE main mean?

LFE means the subwoofer gets the LFE channel and redirected bass from any channels set to Small. Large sends that channel a full-range signal. … LFE+Main sends a duplicate signal to the subwoofer for any channel set to Large and applies a 24 dB/octave low pass to the subwoofer at the selected ‘crossover’ frequency1.

How do I connect my LFE subwoofer?

1/LFE (Low Frequency Effects) connection is a dedicated true . 1 channel to be used for Surround Sound applications. It requires a RCA-to-RCA cable connected between your . 1/LFE input on your REL and the subwoofer/.

Why are there two inputs on my subwoofer?

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.

Why does my subwoofer have speaker outputs?

Like the above poster mentioned, the speaker outputs are just pass throughs that provide a signal for the powered subwoofer that are used if there is not a line out on your source to connect to the line in on your subwoofer.

What is gain subwoofer?

The gain control on a home audio subwoofer allows us to calibrate the bass levels produced by the subwoofer to match the output from the speakers in the system. … A gain control adjust the output levels *relative* to the input levels. That is an important distinction.