It's in the casing of a Townshend Maximum Supertweeter, one end is connected to the red connection terminal and the other is connected to the 7-way switch with has a number of resistors to adjust the level.
So a fuse does make sense, but might it not compromise the sonic quality of the output?
I had assumed it was a capacitor until you helpful guys came along!
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Do a google (image) search for "R010"!
It seems to be a ptc resettable fuse with a cold resistance between 2,5 - 4,5 ohm.
If it really bothers you, you could temporarily exchange it to a 3,5 ohm resistor or even make a switch to toggle between resistor and ptc and play music at reasonable level and listen for differences ...
... and let us know your results, of course!
Edit: just saw the price for that supertweeter
... better not touch it!!!
It seems to be a ptc resettable fuse with a cold resistance between 2,5 - 4,5 ohm.
If it really bothers you, you could temporarily exchange it to a 3,5 ohm resistor or even make a switch to toggle between resistor and ptc and play music at reasonable level and listen for differences ...
... and let us know your results, of course!
Edit: just saw the price for that supertweeter
... better not touch it!!!