Ok ..I have Maggie 1.7is on Magnarisers but one keeps blowing the "tweeter"

I had 1.6s with highly modded xovers for a few years with  no issues. Then I bought a pair of 3.5rs. I blew two tweeters in about six months. I decided it was time to move on.....

@jkf011

I will throw this one out there.

You never said how long you can listen to the speaker loud until the fuse blows.

First if there was a short circuit the fuse would blow immediately. So that can be ruled out.

There is another thing that could be causing the fuse to blow besides an overload. Poor contact pressure and or poor contact pressure and corrosion at the fuse connections can cause heat to be generated in the poor connection when loaded, (playing music loud) The heat will transfer to the fuse link/element and the heat can cause the small element wire in the fuse to melt and blow open.. The fuse should fit tightly in the fuse holder clips. Also check the wire connections at each end of the fuse holder for tightness, as well for corrosion.

So clean then and tighten them up by hand? 

Yes.

If the fuse to fuse holder contact clips are not holding the fuse end caps tight remove the fuse from the fuse holder and carefully squeeze the fuse holder clips together using a pair of needle nose pliers. Carefully, you don’t need much. Reinstall the fuse and check if the connection at each end of the fuse is tight.

As for tightening the connections at each of the fuse holder. Do not over tighten.

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How many fuses have blown, and were they all from the same package?