What Is Subwoofer Preout?

by | Last updated on January 24, 2024

, , , ,

A pre-out is

used for connecting powered or active speakers and through an external source

. High-end receivers usually have three pre-outs — one for the speaker and two for subwoofers. This allows the connection of both the speaker and the subwoofer simultaneously.

What does preout mean?

Pre-outs are

used to connect an external amplifier to your receiver so they can power speakers in your Home Theater system

. … An array of pre-outs allows you to turn your receiver into an exclusive pre-amp/processor by using external amps to power all your speakers.

How do you use a subwoofer pre out?

Pre-outs can be used with subwoofers that have their own internal amplifier. Connecting your powered subwoofers to a pre-out is very simple. To do this, simply

use an RCA-type input jack to connect from your receiver to your subwoofer

.

What is Zone 2 preout?

The Zone 2 feature on a home theater receiver

sends a second source signal to the speakers or a separate audio system in another room

. This feature is more flexible than connecting additional speakers and placing the speakers in another room, as with an A/B speaker switch.

What does sub preamp output mean?

Some stereo amps and preamps have a “subwoofer out” which is usually just a preamp output, meaning it's

a regular full-bandwidth line-level signal that relies on the subwoofer's crossover to decide how much high-frequency information the sub will throw away, and how much low-frequency information it will keep

.

How can I power my subwoofer without an amp?

Hooking Up a Subwoofer Without an Amplifier


Mount your subwoofer in

your preferred location. Next, reroute the stereo and power supply cables to the subwoofer and connect them. If your audio system has an outlet for your subwoofer, connect this as well. Once installed, you need to learn how to get the best sound.

Why does my receiver have two subwoofer outputs?

When a receiver has dual subwoofer outputs the

two are typically duplicates of each other with a common internal connection

. … If they are independent, and you have only one subwoofer, then simply choose one of them and indicate in the receiver setup which one you have chosen to use.

Why do subwoofers Pre out?

Purpose of a Pre-Out

Pre-out

boosts the power of the subwoofer better than the amplifier on an AV receiver

. … With a pre-out, speakers and subwoofers can be connected independently without needing the amplifier on a receiver since they have theirs. That minimizes the load and power on the receiver's amplifier.

What is LFE on subwoofer?

LFE (

Low Frequency Effect

) – The discrete content sent to the subwoofer from a Dolby or DTS encoded audio track. ( The .1 in a 5.1 or 7.1 audio track) LFE + Main – The low frequencies output to the Subwoofer whether the speaker channels are set to Large or Small.

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.

Do I need an amp for Zone 2?

To use this feature, you need: An additional audio system (for example, an amplifier)

to output the sound in zone

2. NOTE: The zone 2 feature is limited to a source using an analog audio connection.

Can I use Zone 2 as pre out?

You can

use the Zone 2 output to feed the tube amp

! Your remote has Zone 2 control. This would be a good way to set up a 2ch playback and also have the surround sound setup in the same room.

Can I connect subwoofer to line out?

It is common for some subwoofers to have two line-level inputs. You can use these if you have a stereo receiver or preamplifier with stereo pre-outs. Connect

two RCA interconnects

from the stereo pre-out of the amplifier or preamplifier – to the left and right inputs on the subwoofer.

Can you connect subwoofer to speaker output?

You can connect a subwoofer to the

high (speaker) level connections with speaker wires or a speaker connector

. Check the specifications on your subwoofer beforehand. Using high (speaker) level connections will use the same audio signal for other speakers allowing for more precisely-timed bass.

Can you wire a subwoofer to the both right and left channels?

To connect a subwoofer to its receiver, you can use an

LFE input cable

or an RCA line-in cable (used for left and right input options). Assuming your subwoofer has the option to use an LFE input, this will be your best choice. … If not, then you will use an RCA input cable to connect to the left and right inputs.

Charlene Dyck
Author
Charlene Dyck
Charlene is a software developer and technology expert with a degree in computer science. She has worked for major tech companies and has a keen understanding of how computers and electronics work. Sarah is also an advocate for digital privacy and security.