http://www.bestmp3playerearbuds.com/jbl-more/
How can I tune my JBL 4 channel amp perfect so that my speakers sound clean and loud?
Ok I have a jbl 4 channel amp and i had it professionally installed at first but then i did some minor changes to my car and had to remove the amp and it's tuning got jacked up. So right now my speakers don't sound as clean as they did before ,they sound more muffled when you turn it up. what are the steps to tuning a 4 channel amp correctly? thanks
An O scope unless u have a ear for it...
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