Questions & Answers for: amp makes subs thump

...amp i am running two infinity 10' subs, infinity product number w1052. but the set-up worked fine for a few years and now something went haywire. Help?! Back to discribing the sub output noise, it is ...

...makes a thump-thump on a regular interval. Any idea? Blown fuse? Thanks, B You need to check your ground connection. If there is a bad ground there will be feedback to the amp and it will just sit ...

...makes the same noise. I was wondering if it is blown or if this problem sounds familiar and do you think it's repairable? I figured the sub-woofer has some kind of chip in it since the other speakers ...

...makes thumping sound after warming up Hello there..Thats normal only if your sub volume and the pre amp is turned up..Your amp is the cause of the speaker jump..Turn amp volume sub level down a few ...

...AMP my sub-1200 makes a constant thumping sound when i switch to power on there is an electronic part that needs replacing here..As far as I remember this is common with a faulty condensator...or the ...

...makes a thump sound after a installed a mono amplifier, the noise comes from the subs it drives, its also present when i turn it off, just a single loud thump noise. Are you turning of the amplifier ...

...makes it good. If you use diode to directly connect the pre-amp line to power line as suggested earlier you might be damaging it more than its currently since you are almost connecting to the 42 v ...

...or its the holder itself if the subs do it when the rca wirtes are off the oits the bord inside the ...

...thump from my installed sub, is this a problem? Not a big problem.  But try cleaning up your ground wire going to the amp.  Remove any paint at the connection and make sure it is really ...

...amp and subs and blow them.Is it in the proper sized box? is the amp able to run the sub at the ohm it needs to be run at and do you have the the ohm load correct on the sub. there is a lot to it. if ...