How to Connect Subwoofer Pre-Out Cable to Speaker Wires
As an Amazon Associate, we earn from qualifying purchases made on our website.

If you want to connect your subwoofer to your AV receiver using speaker wire, you’ll need to use a subwoofer pre-out cable. This type of cable allows you to send the low-frequency audio signals from your AV receiver to your subwoofer.

The process of connecting a subwoofer pre-out cable to speaker wire is relatively simple and can be accomplished with a few basic steps.

Before you go ahead, you can also check out – How To Connect A Subwoofer With Speaker Wire To A Receiver That Has A Jack.

How to Connect Subwoofer Pre-Out Cable to Speaker Wire?

Connect Subwoofer Pre-Out Cable to Speaker Wire

If You Have a Subwoofer:

  • Input: RCA Cable
  • Output: Speaker Wire

Step 1: Separate The Individual Strands

Separate the individual strands on both ends of your speaker wire. This will allow one side of each color into their respective ports on both ends. Split them apart so there are two strands of black, two of red.

Step 2: Connect According to The Color

Connect the appropriate color to the subwoofer’s output side, which is usually labeled “CABLE IN.” Black will connect to black; red will connect to red.

Make sure it’s tight and relatively snug, you should not see any exposed wire connections on either end. This step does NOT apply if you are using pre-out cable instead.

Note 1: Connect The Speaker Wire to The Port

If your subwoofer has a built-in amplifier, connect the speaker wire (one each black and red) to the port labeled SPEAKER OUT on both ends. However, connecting directly here WILL decrease power due to loss in the wire; it’s not recommended.

Note 2: Match The Colors

If your subwoofer has no speaker ports, refer to where I said to run the standard speaker wires (black/red). Splice them together by matching colors- there should be one black/red at the output port, which will go into one side of both inputs on either end.

Then connect that strand to all other standard speaker wires you have running behind the wall.

If You Only Have Pre-Out Cable:

  • Input: Standard-Speaker Wire
  • Output: Subwoofer Cable Input

Step 1: Separate The Individual Strands

Separate The Individual Strands of wires

Separate the individual strands on both ends of your standard speaker wire. This will allow one side of each color into their respective ports on both ends. Split them apart so there are two strands of black, two of red.

Step 2: Connect The Appropriate Color to The Subwoofer’s Input

Connect The Appropriate Color to The Subwoofers Input

Connect the appropriate color to the subwoofer’s input side, which is usually labeled “RCA IN.” Black will connect to black; red will connect to red. Make sure it’s tight and relatively snug- you should not see any exposed wire connections on either end.

Step 3: Cut Off One Side

rca cable cut

Now take your RCA cable and cut off one side (usually the male side). Strip away about ¼ inch of insulation from each wire. Be careful not to cut the wires themselves!

Step 4: Twist The Wires

Twist each wire around its corresponding connector post until they’re securely fastened. Make sure all exposed wire is covered- if you don’t do this, the exposed pieces will EAT away at your insulation.

Step 5: Twist Some Electrical Tape

Twist on some electrical tape to keep everything nice and tidy. Double-check that all exposed wire pieces are covered or taped down. I ran out of tape mid-way through, but it’s not noticeable; also make sure each connector has contact with each other (they should be touching).

Step 6: Plug The Subwoofer Cable

Plug The Subwoofer Cable

Plug the subwoofer cable into the output port on your receiver labeled SUBWOOFER OUT or PRE OUT or anything ending in “out”, RED/WHITE (if red/white) INS, etc.

Step 7: Plugin The RCA Cable

Plug the other end of the RCA cable into the subwoofer’s input port. It should be labeled “IN,” “RCA,” or something similar.

How to connect RCA subwoofer output to speaker wire subwoofer input

When connecting a subwoofer to an audio system, there are two types of connections that can be made: RCA and speaker wire. Let’s show you how to connect an RCA subwoofer output to a speaker wire subwoofer input.

Step 1: Locate the RCA subwoofer output on your audio device. This is typically a red and white port but may vary depending on your audio device.

Step 2: Cut the speaker wire to the desired length and strip the insulation off of each end.

Step 3: Twist each wire together and then screw on a connector (either a spade connector or banana connector). If you are using spade connectors, be sure to insert the connector into the hole on the end of the wire before twisting.

Step 4: Connect one end of the speaker wire to the RCA subwoofer output on your audio device, and then connect the other end of the speaker wire to the subwoofer input on your speaker.

How to Add a Subwoofer to 2 Channel Stereo Set Up?

Adding a subwoofer to a 2 channel stereo setup can be a great way to improve your audio experience.

By adding a subwoofer, you will not only get deeper and richer bass tones, but you will also get louder sound overall. Below is how to add a subwoofer to your 2 channel stereo system step by step.

1. Identify the Type of Subwoofer

The first thing you need to do is identify the type of subwoofer that you want to add to your system. There are two types of subwoofers: passive and powered (active). Passive subwoofers require an external amplifier to function, while powered subwoofers have their built-in amplifier.

Most people prefer powered subwoofers because they are easier to set up and they provide better sound quality.

2. Determine the Amount of Power Required


Once you have identified the type of subwoofer that you want, you need to determine how much power it requires.

This information can usually be found in the subwoofer’s specifications. You will also need to know the wattage of your amplifier, as well as the impedance of your speakers.

Conclusion

So there you have it. Using a subwoofer pre-out cable to connect your subwoofer to your speaker wire is an easy way to improve your audio experience. Not only will you enjoy a better bass response, but you’ll also get louder sound overall.

If you’re looking to upgrade your audio setup, be sure to consider using a subwoofer pre-out cable.