Speaker or amp problem

[mazzasec 5,000+ posts]

Ok Well I have had this one head unit for about a year. Just today I found out I could do custom low's mid's and high's settings. So I was playing around with it all. All of a sudden my back speakers just stop playing. I tested the channel on the amp to see if it was the problem and the channels are fine. Then I realized my front left mid just stopped playing as well. The right speaker is fine though. If they were blown would that make a little noise? Or does a blown mid/tweet make no noise at all? Cause there is no noise coming out of the both rears and the front left mid.

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