How To Connect Subwoofer To Receiver Without Subwoofer Output

A subwoofer allows you to get the most out of your music. You will enjoy a lot of fantastic audio quality if you have properly installed the subwoofer in your setup. However, if you choose a subwoofer and install it incorrectly, you will suffer far more than you anticipated.

Subwoofers are only made for one purpose: to improve the overall audio quality of your sound system. High-end audio lovers understand that a subwoofer is an essential component of any home music or home theater audio system.

Do you need a Subwoofer?

In general, most built-in speakers in audio or home theater systems are incapable of reproducing all of the frequencies sent to them by the audio source. If you want to hear the sound effects from your favorite movie scenes as well as the melodies from musical and bass instruments, you’ll need to add a Subwoofer. You can check out our top pick on Amazon.

4 Ways To Connect Subwoofer To Receiver Without Subwoofer Output
Sony SACS9 10-Inch Active Subwoofer,Black

If you already own a receiver without a subwoofer output, you’re probably considering purchasing a new one. Remember that nothing is impossible in the world of technology. You can easily connect it to the receiver even if it does not have a subwoofer output by using a few simple tricks.

How To Connect Subwoofer To Receiver Without Subwoofer Output

I’ll go over four different methods for connecting, and you can pick the one that works best for you and is supported by the receiver.

1. Using Speaker Wires

2. Using the Preamp Output

3. Using LFE + Main on Subwoofer

4. By setting the Speakers to the Left or Right

How to connect Subwoofer to receiver using Speaker Wires

This method is usually effective for all receivers and subwoofers.

• To combine a subwoofer and receiver, connect the speaker wires to the receiver. Make sure that each wire is connected to its proper location.

• Connect these wires to the subwoofer’s left and right speaker terminals.

• The subwoofer is now ready for use, but inspect each wire connection for loose ends.

This method is not ideal and does not provide the best performance, but it can be considered adequate.

How to connect Subwoofer to receiver using the Preamp Output

This is one of the simplest and quickest ways to connect a subwoofer to a receiver that does not have a subwoofer output. The Preamp Output method is straightforward, requiring only a few connections from your receiver to your subwoofer.

• To ensure a strong connection between the subwoofer and receiver, examine the receiver’s panel carefully. Receivers are typically designed with the preamp output labeled ‘Pre-Out’ on the back.

• Check the subwoofer panel for an RCA input; if there is only one, add a “Y-Adapter” with one male on one end and two females on the other.

• Connect the male end to a subwoofer input and the female ends to two RCAs from the receiver.

How to connect Subwoofer to receiver using LFE + Main on Subwoofer

LFE is an abbreviation for Low-Frequency Effect. It is a track effects channel that is used in the optical track.

When using the LFE + Main method, you must ensure that the bass setting is correct; only then will you be able to get the most out of your subwoofer.

• On your receiver, look for the subwoofer bass setting or subwoofer modes.

• Only when your left and right speaker channels are set to large will this method provide adequate sound quality.

• Your source-“Bass receiver’s Out” feature will instruct you on how to connect and operate the subwoofer.

• Switch your front and main speakers to the extensive mode.

• Finally, set the “Main + LFE” to allow them to play the subwoofer.


When the speaker channel is set to large, the “Main + LFE” setting sends low frequencies to the subwoofer. When set to small, it will send all frequencies below the crossover point to the subwoofer. In this method, you can choose whether or not to use the subwoofer for two-channel audio sources. Furthermore, when playing audio, “Main + LFE” is the best option; it ensures that you get the desired audio with the perfect bass.

How to connect Subwoofer to receiver by setting the Speakers to the left or right

This method may appear difficult and discouraging at first, but it is effective even with two-channel sound sources. To avoid any unwanted incidents, it would be best if you were cautious when securing the speakers from small to large.

You should learn about bass management before implementing this method. Follow the instructions and guidelines to gain a firm grip on your receiver.

To use this method, go through the following steps:

• Set all of the speakers in the center, back, left, and right to large or small groups.

• For the best audio output, experts suggest arranging your speakers in small to large groups and using an 80Hz crossover setting.

• After arranging all of the speakers, set the front and main left speakers to small so that the subwoofer performs at its best.


A subwoofer is an excellent choice for your home theater and music; the chilling vibes you get from each sound effect are indescribable.

Follow the instructions in this blog post to connect the subwoofer to the receiver. They are simple and effective steps for ensuring high-quality bass and thrilling sound in your movies, games, and music. The connection solutions will save you the money you would have spent on a new one.