Knowledge Base


How to Change a Fuse in a Studio Monitor

Published 5th April 2022


If you encounter the situation where your monitor will not power on, then one potential reason is a blown fuse. The fuse is present to protect your monitor from being damaged in case of a power surge occurring etc. 


The first task to perform is to test your monitor with a new power source, preferably in a different room.



The next step is to then test with a different power cable if possible. 


If your Studio Speaker will still not power on then please try changing the fuse. For this you will need a small flat-headed screw driver similar to the picture below. Turn the speaker around and remove the power cable to ensure that there is no possibility of receiving an electrical shock.



The holder that holds the fuse is located just below where you plug in the power as outlined by the red box in the picture below. Using the small flat head-screwdriver you can remove the fuse holder by prizing it open and checking the fuse.


If the fuse is dark in colour it would indicate that it has blown.



If there is a spare fuse in the holder, swap them around and put the holder back in. If there is no spare fuse you can replace the fuse for another one of the exact same rating and re-test.


The following PreSonus Studio Monitors contain replaceable fuses:

Eris E5 & E5XT & E5BT

Eris E7XT

Eris E8XT

Eris Sub8

Eris E44/E66

R65/R80 & R65/R80 V2 

Temblor T8 & T10 


If your monitor is still unable to power on then please contact PreSonus technical support as outlined below.



Please contact PreSonus Technical Support by creating a Support Ticket at for further assistance.

>How to create a support ticket<





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