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<blockquote data-quote="dB-r" data-source="post: 2824671" data-attributes="member: 574699">Put the non-polarized cap back in there, otherwise you may make a really gooey mess inside your amp one day when you are banging the heck out of that amp.&nbsp;&nbsp; Is there something wrong with the non-polarized cap that you couldn&#039;t put it back in the amp?Polarized caps are made for handling DC voltages, removing AC voltages.Non-Polarized cap are made for filtering AC noises, mostly in passive crossover type setups.&nbsp;&nbsp; A class D sub amp needs a output filter to remove the switching noise from the output FET&#039;s signal, then it is compared via a feedback circuit to the input signal.&nbsp; If it varies, it corrects as it goes to make the output signal match the input signal (just a larger version of the exact same signal).Changing that capacitor can cause that signal to not look right, and cause distortion in the output signal.&nbsp;&nbsp; Also if that cap is not capable of handling 250V continuously it will eventually heat up and spew oily paper crap everywhere inside your amp.You may be okay, if the replacement really is a 250V cap, but only if.&nbsp; Any less and poof, oily junk everywhere.</blockquote>

[QUOTE="dB-r, post: 2824671, member: 574699"] Put the non-polarized cap back in there, otherwise you may make a really gooey mess inside your amp one day when you are banging the heck out of that amp. Is there something wrong with the non-polarized cap that you couldn't put it back in the amp? Polarized caps are made for handling DC voltages, removing AC voltages. Non-Polarized cap are made for filtering AC noises, mostly in passive crossover type setups. A class D sub amp needs a output filter to remove the switching noise from the output FET's signal, then it is compared via a feedback circuit to the input signal. If it varies, it corrects as it goes to make the output signal match the input signal (just a larger version of the exact same signal). Changing that capacitor can cause that signal to not look right, and cause distortion in the output signal. Also if that cap is not capable of handling 250V continuously it will eventually heat up and spew oily paper crap everywhere inside your amp. You may be okay, if the replacement really is a 250V cap, but only if. Any less and poof, oily junk everywhere. [/QUOTE]

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