Why does my amp work but not my sub?

If the amp is working fine, but there is no sound in subs, you should also check the amp’s input connected to the head unit. Check the RCA cables used for this connection. If you have a header with multiple RCA outputs, check other ones. If you still don’t get the sound, check another set of RCA cables.

Can you use a powered subwoofer with a powered receiver?

Many powered subwoofers have both line input and speaker connections. This means that if you have an older home theater receiver or amplifier that does not have a dedicated subwoofer preamp output connection, you can still use a powered subwoofer with both standard speaker connections and line inputs.

Do you need power for a powered subwoofer?

For many people, a small, self-contained, powered subwoofer will provide more than enough bass for their system. After positioning the powered sub, all you need to add are power cables and signal wires. You can learn more by watching the Crutchfield video on Installing a Powered Subwoofer.

Why is there no sound coming from my subwoofer?

Depending on the audio source, the low frequency effect (LFE) signal may not be sent to your subwoofer. When LFE signal is present, the LFE indicator light will illuminate. NOTE: Many TV channels are only broadcast in two-channel audio and do not send this signal. In this case, set the sound field setting to A.F.D. AUTO or a another sound field.

How does a subwoofer connect to a speaker?

By the way, this method works whether you connect an extra set of speaker cables to the subwoofer’s speaker-level inputs, or use a line-level connection to the sub from your preamp or integrated amp. Some subs have high-pass-filtered speaker-level outputs you can run to your main speakers.

Can a subwoofer work in a two channel system?

It’s still quite possible to blend a subwoofer smoothly into a two-channel system by running the main speakers full-range and using the crossover built into the sub to filter the mids and highs out of the sub. But you have to do three things to get it to sound good: 1) Position the sub correctly.

How to connect a subwoofer to a receiver without a speaker?

Example of a powered subwoofer with 2 types of signal inputs (speaker level and RCA jacks) along with sound controls. Note: Not all subwoofers have speaker level inputs, which makes it a problem connecting them to a receiver without a subwoofer output.

How does a self contained Active Subwoofer work?

A self-contained active subwoofer combines a subwoofer with a line-level crossover and power amplifier in one cabinet, eliminating the need for separate boxes and amplifiers. Such a subwoofer has line-level inputs (which are fed from the preamplifier), line-level outputs (which drive the power amp), and a volume control for the subwoofer level.

Do you need a power cord for a subwoofer?

Verify the subwoofer power cord is plugged into an active AC outlet and that the subwoofer is powered on. If the subwoofer does not have a power cord, then it is a passive subwoofer. In that case, you will need to purchase an active subwoofer. Set the volume on the back of the active subwoofer to the middle position.

How to troubleshoot no sound coming from an Active Subwoofer?

A separate article about the difference between an active subwoofer and a passive subwoofer is available. Select Settings. Select Speaker. Select Speaker SP. Make sure that the Speaker pattern ends in either a .1 or .2. NOTE: If a pattern that ends in .0 is selected, the subwoofer will not work.