Question about Cerwin Vega VE-28S Subwoofer

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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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Re: Cerwin Vega ve-28s subwoofer and new Cervin Vega...

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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I have a cerwin vega ve 28s sub and noticed static sound coming out even when no music was playing. The next day sub went into standby in the middle of a song. If I turn it off for a couple hours it works...

First, disconnect it and let it run with no input. Problem here is that it probably has an auto-turnoff and will shut off. My bet is that either your connection wiring is faulty and/or your amp is sending down either RF or DC signals. I would get it close to the amp with another connection cable and check... Good Luck !

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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.

I have used #2 with the same system and had great results.


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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 .

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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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