Question about ElectroVoice SxA180 Subwoofer

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No sound I've had recurring problems with the thing seemingly not starting up when I first power it on. It's like it's not even getting power. And since it has NO pilot light, you really can't tell whether it's getting power or not. Quite often, I fiddle with everything (cabling, etc.) for anywhere from a minute to 10 minutes, and then suddenly it's working and I don't really know why it wasn't before or whether the problem was even internal to the sub. Very frustrating.

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Check the power supply filter capacitors - leaky caps / noisy supply / low voltage may not let the protection relay to energize. With a few minutes ON time, the caps may form - allowing the voltage to stabalize, and the relay will kick on. ( Just a guess )

Posted on Jul 12, 2009

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