Rogue Audio M 180 fuse upgrade

have you tried rolling the small signal tubes? If you want to improve the sound I would do that first. Mark likes smooth plate Tele's 12au7's and Brimar 12ax7's. Another great sounding option is the RCA 12ax7 black plates with square getters and RCA 5963 black plates with square getters. They sound really good in the amps and are not as much $$$.

You need to research what fuses are used for.

DO NOT INSERT A 5 AMP FUSE WHERE A .5 AMP FUSE IS CALLED FOR.
This needs to be said in a loud voice as it could be dangerous.

By all means, you can replace your fuse with a better made one but it has to be of the same value and rating.

Hi, Furutech fuses make a great upgrade however you do need to use the same rating / type (eg slow or fast blow, probably the former) as the factory recommend as they're there to protect. I've had two Rogue amps a while back and they're great plus excellent support from the two Marks. In my 88 magnum, siemens e80cc were much better than any of the 12au7 variants I tried though you should check with the factory whether the 180 circuit can support them also.

Good luck!