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Author Topic: My turbo sound active speakers continue to fail.  (Read 1012 times)

DonnyCooper

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My turbo sound active speakers continue to fail.
« on: September 10, 2022, 03:15:08 AM »

Hello. I work at Gerties, the casino in Dawson City, Yukon Canada. Weve had a Turbosound PA installed for about six years. This year we had a brand new, beautiful lighting rig professionally installed. However in the last five months our turbosound tops have succumb to the same problem multiple times. I have a basic level of electronic repair understanding and have done the visually obvious repair a few times.Something is burning out the same transformer solder points on the AC side. Ive attached pictures and Im looking for insight. This is happening too often to be a coincidence.
« Last Edit: September 10, 2022, 03:21:15 AM by DonnyCooper »
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Mike Caldwell

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Re: My turbo sound active speakers continue to fail.
« Reply #1 on: September 10, 2022, 08:05:12 AM »

Maybe the trace is not large enough to handle the current?

Have to jumper the trace with a piece of wire?

Brian Jojade

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Re: My turbo sound active speakers continue to fail.
« Reply #2 on: September 10, 2022, 09:02:32 PM »

Have you checked your supply voltage?  A lower supply voltage results in higher current draw as the power supply compensates and sometimes that will push gear beyond its capabilities and cause premature failure.
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Brian Jojade

Jim McKeveny

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Re: My turbo sound active speakers continue to fail.
« Reply #3 on: December 08, 2022, 02:21:55 PM »

Have you checked your supply voltage?  A lower supply voltage results in higher current draw as the power supply compensates and sometimes that will push gear beyond its capabilities and cause premature failure.

This is a common class D amp failure situation (if these are class D amps). The compensation for voltage sags is slow to normalize as voltage returns, resulting in overvoltage situations not designed-in. Class D's are a work-in-progress, but the wiser manufacturers have made great adjustments as fresh data emerges.
« Last Edit: December 08, 2022, 02:25:43 PM by Jim McKeveny »
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Patrick Tracy

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Re: My turbo sound active speakers continue to fail.
« Reply #4 on: December 08, 2022, 05:24:04 PM »

Out of curiosity, which Turbosound speakers? They don't appear to be Milan, iQ or iX (looking at the flown speakers in the photo).

ProSoundWeb Community

Re: My turbo sound active speakers continue to fail.
« Reply #4 on: December 08, 2022, 05:24:04 PM »


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