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seems i exceeded the max voltage rating for my marchand xm-1 xovers the other day.nothing scorched or exploded or visibly damaged.
any testing procedures would be appreciated.
Follow Ups:
If they are, just measure the output voltages. Pins 1 and 7. If near zero, then you be ok. Does it still make sound? That would be the first indication.
replacements as i cant rest easy with peace of mind knowing that they might be damaged and totally fail later and take out some nice drivers.
With power applied bring the voltage of the positive input above the voltage of the negative input and the output should go to positive rail. When you bring the negative input above the positive input the output should go to the negative rail.
the voltage difference have to be.max voltage for them is supposed to be +/-18vdc and for a few minutes i had them at +/-19vdc which i think may have slowly cooked them.
just tried them with +/-8vdc and got distorted output but that may be a blown cheapy test driver.
got slammed with a bad cold so going to wait till my head is on straight before any more monkeying.
Somewhere below a few millivolts it will probably quit being a valid test but up to rated voltage for each pin should be fine.If the + and - 18V spec came from the absolute max ratings section of the data sheet they are probably toast. At any rate I probably wouldn't trust them for anything mission critical but this is just your stereo so you probably oughta let your ears be the judge if you can't afford the loss.
If you have a signal generator it can often be instructive to run a square wave through ther to see what comes out the other side.
it in my mind that the max was +/-20vdc and the +/-19vdc should have been just fine.whattadummy. :(
i figured if i was too far wrong they would protect themselves.
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