Why is my subwoofer making a thumping noise?

If your subwoofer(s) “thump” or “pop” when you are changing inputs on your receiver don’t automatically blame the subwoofer. The subwoofer will only reproduce the signal sent to it from the AVR(Audio Video Receiver). Adjust the gain control on the subwoofer in conjunction with the bass level control in the receiver.

What does a subwoofer bottoming out sound like?

Sometimes the tinsel leads do a bit of slapping the woofer cone, and that causes a fluttering sound. Bottoming out sounds like a fart or popping sound. If your sub is trying to play clipped sound waves (the amp runs out of power/current to correctly drive the woofer), it’ll sound distorted.

How do you set a subsonic filter?

Each octave up is twice as many Hz as the previous one, and dividing any frequency by 2 takes it one octave lower. Therefore, to get your subsonic filter setting, take your subwoofer’s tuned frequency and multiply it by 0.75. So, if it’s tuned to 40 Hz, set the filter knob to 30 Hz.

What is subsonic frequency on amp?

For the mainstream listener, setting a subsonic filter around 35 Hz will allow them to hear all their music content, missing nothing on any performance, while protecting their system. Our next articles will also show ways to optimize amp power and cone excursion for the listeners bandwidth.

Why do I not get thumping sound from my subwoofer?

If you do not hear a thumping sound then there is a possible service issue with the subwoofer. Connect the other end of the subwoofer cable to the subwoofer audio output connector on the back of the receiver. NOTE: Some receiver models may have two outputs to drive two subwoofers.

Why is my subwoofer making a knocking sound?

I awoke to it doing this last week and had to pull the power plug to get it to stop. Plugged it back in after a day and have used it a few times during the week without issues. Then today, I awoke to it making the sound again and had to pull the power.

Why does my Lansing sub woofer make a humming noise?

When I plugged in my Altec Lansing VS4121BLK speakers to listen to some music. I noticed a low humming or buzzing noise coming from the sub woofer. I went online and started trouble shooting I read a few articles about something called ground loop issues. However, I’m not sure if this is the issue with my speaker system.

What do I do if my subwoofer won’t turn on?

If your subwoofer has a standby function, turn it off. Connect one end of the audio cable to the subwoofer audio input connector. Very lightly tap on the center conductor of the other end of the cable. If the subwoofer is powered on and adjusted properly, you should be able to hear a thumping sound on the subwoofer.

If you do not hear a thumping sound then there is a possible service issue with the subwoofer. Connect the other end of the subwoofer cable to the subwoofer audio output connector on the back of the receiver. NOTE: Some receiver models may have two outputs to drive two subwoofers.

Why does my subwoofer make a 60 hertz noise?

Induced 60-Hertz noise is hum that comes into your audio system through contact or proximity to power circuits or cables. While this can happen internally in your devices, the more common cause is bad routing of cables.

I awoke to it doing this last week and had to pull the power plug to get it to stop. Plugged it back in after a day and have used it a few times during the week without issues. Then today, I awoke to it making the sound again and had to pull the power.

Is there a problem with my subwoofer Hum?

If the above attempts have failed to resolve (or have only partially resolved) your problems, it’s time to broaden the search. While subwoofer hum can often be isolated to the sub and its immediate link to a receiver, another distinct possibility is that the hum is getting into the audio stream further upstream.