I didn’t bother further. What is reflected in the thread is what I did and learnt, so kept the std fuses and upgraded tubes which have been running for 5 years flawlessly.
The amp runs hotter with these tubes than with the original ones which has to translate into higher current draw. Per the Cable Co answer, std fuses have additional 10% tolerance which seems to be enough. I didn’t want to to go up 25% rating in the fuse from 2 to 2.5A as it seemed unsafe for the amp. So I let go of that part of my audio nervosa and lived happily ever after :-)
In the past years I turned into an active system where now the McIntosh is driving mids/treble and sees a lower demand so runs cooler again. Could try hi-fi fuses again but I’m not prepared to risk throwing away money, so I stayed out. Sound is great and I found areas for more significant upgrades to sound than fuses made, so went that route.
Cheers
The amp runs hotter with these tubes than with the original ones which has to translate into higher current draw. Per the Cable Co answer, std fuses have additional 10% tolerance which seems to be enough. I didn’t want to to go up 25% rating in the fuse from 2 to 2.5A as it seemed unsafe for the amp. So I let go of that part of my audio nervosa and lived happily ever after :-)
In the past years I turned into an active system where now the McIntosh is driving mids/treble and sees a lower demand so runs cooler again. Could try hi-fi fuses again but I’m not prepared to risk throwing away money, so I stayed out. Sound is great and I found areas for more significant upgrades to sound than fuses made, so went that route.
Cheers