Question about Cerwin Vega VE-28S Subwoofer

1 Answer

Cerwin Vega ve-28s subwoofer and new Cervin Vega 2-way satellites


Since we got this sub last Christmas it has had a periodic popping, crackling and thumping sound. Sometimes loud enough to make us jump. Initially we put on the ground elimination plug like CV recommended to eliminate a hum. That worked well.
These other sounds are making us concerned that we may have a bad receiver or the speaker is bad.
The receiver is a Sony STR DE475. It puts out 185 watts and in "like new" condition.
We only turned up the speakers a few times just to feel the rumble of the speakers.

Any idea about the noises and what we can do to eliminate them?



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  • 3 more comments 
  • bigpooh666 Dec 02, 2007

    The subwoofer snaps, crackles, pops and hisses even when not in use. Almost sounds like trying to tune in a CB radio. What's the issue and what is the solution?

  • kcarter02 Jan 29, 2008

    Exact same problem - I have been told by CV support that it is a ground loop problem - I used a cheater plug to elminate the ground issue, but the problem persists. I know the problem is with the unit - I tried it at another location - I just plug it in, not connect to any amp or reciever and it hum and crackled. I am about ready to dump this thing and buy something else, if the I can't solve the issue.

    Has anyone tried any of the high-end power bars for monster cable?

  • BudgetGeek Jul 28, 2008

    I had the same problem with this unit. Tried two different local Cerwin-Vega-authorized repair shops, neither one of them could even provide a diagnosis of the problem (and kept my speaker a total of three months), I finally got Cerwin-Vega to replace the amp in the unit. After five and a half months, the new, replaced amp is demonstrating EXACTLY the same fault. I'm hoping to get one more warranty adjustment, then I'm selling this unit to someone who has the patience to replace the amp every five months. What a piece of junk!

  • sydneymicro Jan 15, 2009

    Initially (first week I owned the sub) I had issues with the sub humming and creating sounds similar to feedback or a bad ground, i removed the ground prong from the cord and the problem went away...

    Its been about 6 months, I am having the same problem. At first the sub started to make a "thud" sound, I was often checking out my window expecting to see a friend stopping by (even my dogs were barking!). Now it sounds as if its trying to tune in radio stations. I replaced the power cord, and the problem was gone for 2 days... now it is back.

    Tomorrow I am taking the amp to work and troubleshooting it (I am a computer/electronics tech) I will post if I find any bad components.

  • Anonymous Apr 20, 2009

    i have same problem i live in mexico



1 Answer

I bought my VE-28s and it did exactly that crackled, cerwin replaced part in amp but few months later problem persisted. they then replaced entire amp assembly and its been fine. i really push it to and its been fine. to test it, unplug the connection from amp/ reciever and see if it persists. if so its the sub, if not its the amp/ reciever. dont dump it, these subs really crank and can put out some deep loud bass.

Posted on Mar 05, 2008


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Hello. My ve 28s crackles when in standby mode, and also plays crackly bass. Please help me by telling me which component to replace within the amp. as I have no Cerwin Vega agent support here in South...

This "Crackling" Problem is common with the Cerwin Vega VE-28S Subwoofer. If your subwoofer is out of warranty, and you know how to solder, you can fix the problem by replacing a few resistors, and transistors inside the amplifier. Get the parts on ebay:

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We will start with the easy one, Phase. The phase selector is a setting that can be adjusted by sound; which one sounds better? Either one will work fine. It's mainly for situations where the sub enclosure is located at a distance or behind the listening area. The 'in and out' crossover selector and the input from the receiver goes together. The 'in and out' crossover selector is asking if you want to use the internal crossover to block the bass from getting to the satellite speakers. Most home surround sound receivers only have the one sub out and most subs have both left and right inputs. When there is a single signal being fed to the sub you use the subs left input or buy a splitter and send the signal into both left and right, but either way will work equally the same.

There is two ways to connect the speakers to the receiver.

1) Cross-over 'In': you connect the output speaker wires from the receiver to the speaker inputs on the sub and the speaker outputs on the sub to the satellite speakers; the sub will get its sound from the input speaker wires.

2) Cross-over 'Out': you connect the sub to the receiver using the receiver's single sub out, then connect the satellite speakers directly to the receiver's speakers outputs; in this configuration the satellite speakers are given a full range of signal including the bass.

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It will be easy to pin point the problem. If your satellite speakers have been connect through the sub's in and output speaker connectors, disconnect them and connect them directly to the source of sound. If the speakers work its the crossover inside the sub enclosure. If the speakers do not work the speakers are blown.

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Does it only pop and crack when its connected to your amp or receiver ? i have the same thing with my sub [its not cerwin vega] but when i turn my amp off the sub doesnt pop anymore so i think my amp is the problem not the sub , yours might be the same problem .

May 19, 2009 | Cerwin Vega VE-28S Subwoofer

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Yeah, I've had two of these go out on me in exactly that failure mode. The first time, C-V bounced me around to two repair shops (a three-month process) before telling me to send it to them in Florida. This time, I went directly back to C-V with it, and they've had it two months now, and every time I call for a status update, I'm told "We'll let you know," or "We're working on the paperwork." Their service and support staff are not helpful - friendly, but not helpful - and the failure rate I've experienced is absolutely unforgivable.

So, my best solution I can give you is send it back for a warranty adjustment, and then sell it. As soon as mine comes back this 2nd time, it's going on the market, and I'm going out to buy a Sony.

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I have the same problem and was told that it is failed amplifier....

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