You don’t need to worry when your KEF Subwoofer is Not Working. When you have KEF subwoofer troubleshooting, the best thing to do is make sure that the speakers are both plugged in and turned on.
If that does not fix the problem, there may be something wrong with the amplifier or the receiver. You can easily address this by turning off and unplugging the receiver.
Also, turn off the amp before plugging it back in and turning it back on. If your subwoofer still will not work, it may be dead and need to be replaced.
Check the connections
One of the most common causes of a subwoofer not working is a loose connection. The output cable, whether it’s RCA or speaker wire, needs to be firmly plugged into both devices for your sub to work.
If you suspect that your connections are loose, re-tighten them and try powering up again. It’s also important to make sure that your input device (like an amplifier) is turned on.
Sometimes, people forget about their components and when they turn on their system after a period of time. They’re surprised to find out that it’s not working!
Check the fuse
Before you panic and call in a repairman, it’s worth checking that your sub has blown its fuse. To do so, find the fuse panel (the likely spot is behind one of your speakers), pull out all of its fuses, then replace them one at a time.
If you don’t hear your bass again as you put each one back in, it’s blown. Replace it with another identical fuse. If they seem to be OK but you still can’t get any boom, ask an electrician to check that there isn’t something else wrong with your amplifier or wiring.
You might also have a broken woofer. In which case you should contact your retailer or manufacturer for advice on getting it replaced under warranty.
Check your power source
When it comes to a subwoofer, there’s no denying that amplifiers are what makes everything happen. If your amplifier doesn’t have enough power, your speakers won’t get a signal.
This means if you hear no sound coming from your subwoofer (even when music is playing), check to see if your amplifier or receiver has sufficient juice. For most people, that means having at least 100 watts of power per channel available.
Call in an expert
If you have a speaker problem, get in touch with your manufacturer’s representative or authorized service center. In most cases, there is some sort of warranty involved. After that bringing your speaker in for servicing will at least save you money (if not time).
It’s certainly worth a shot before heading down a DIY path to fix your speakers yourself. You can call them directly or look up their number on their website and call them that way.
Either way, it never hurts to mention that you’re familiar with their product line and have been using one of their speakers for years. You want them to know you care about maintaining your investment!
Also read: Onkyo Subwoofer Pre Out Not Working Solved
Most likely, if your sub is not working it is because it is turned off. Make sure to check both your amp and speakers, as well as all cords for any damage before replacing anything.
If you have made sure everything else is connected properly, but still can’t seem to get sound out of your speaker(s), you may need to replace one or more of your parts.
Once you have confirmed that all connections are secure and there are no obvious issues with your equipment, replacement may be required.