It was time for a change after 40 years i guess. The new ones are impossibly tight. I have a few more outlets to go. This one just took a while working under the desk.
@keithc i know we spoke about some of these things but I am treating this as a maintenance point vs an audio enhancement. I rent from family so nothing crazy, maybe some metal outlet covers.
I did find out some other positives. My room is on a dedicated line from the a circuit breaker sub box. It is a 20A line wired with 12awg wire. A huge pain to bend around duplex terminals, but theyre chonking. It probably isnt perfect, quality from the street still applies but it is a big step ahead of where it could be.
After some more appropriate break in time on all of the fuses I’ve tried. They’ve gotten better and my original maybe yes, maybe no reservations for lack of a better word have gone by the wayside. A good fuse is certainly worth the investment, but don’t do it on an incomplete chain, to get the most out of it, it needs to be a finishing touch implementation. The dynamics alone are worth it, but there’s been an improved feeling of harmony in the system.
Long story short, I’m actually going to throw fuses on the subs.
Cryotone sent me a fuse to try out, but they sent a higher rating than what I requested. Is it ok to use a higher rated fuse? Wanted to make sure before I try anything (will also confirm with manufacturer).
For reference, the one in my amp is 3.15A. They sent me a 6.3A fuse.
My lampi worked semi ok with the 1.5A fuse but it would blow earlier rather than later. I wouldnt want anything blowing too late. There is also slow vs fast blow fuses
It’s not going to hurt the device, what you lose is the safety the fuse is intended to provide.
If something goes wrong it’s likely some other part of the device will act as a fuse instead of the fuse, it’s a risk.
Hello,
that would be double the value of the actual fuse, which would be a bit heavy.
If it were only a few milliamperes more, like 3.5 ampere, it would still be acceptable.
Especially with tube amplifiers or dacs you can go a little higher, which is usually better, because the devices are more durable but do not go to their performance.
I was supplied with the Feliks Euforia standard with a 1a, the specified value was 1.6a.
When I got the fuse on recommendation with a 2a, these distortions were gone and it played much better.
The fuse seller told me the same as Polygonhell said, a slightly higher value is practical, the fuse triggers a little later, but he could not guarantee that other components would not work afterwards, even if it was a matter of milliseconds.
From 3.15a to 6.3a would mean roughly double the time.
That would really be a bit heavy if the fuse really had to blow, something could certainly break afterwards, not just the fuse alone.
I wouldn’t take that risk now.
If the fuse is broken in, meaning you’ll only keep it in the unit a few days while evaluating it, I wouldn’t sweat it. I wouldn’t keep it in there long term like that.
That said I currently have a copper sluggo in my Firstwatt F8, so don’t do like I do.
Basically a designer determines how much current the design should draw, then doubles or triples it and sticks that fuse in there.
So they aren’t exact, power draw varies a bit and there is a massive surge in current draw at startup on most power supplies, which is why everything uses slow blow fuses.
If they try and get too “tight” with it you run into issues where because of home voltage variation and variations in components themselves result in some of your customers having good devices that repeatedly blow fuses. Lampizator had this issue with the US fuse spec at one point and just changed it.
All that really matters is if there is a failure somewhere that results in a dead short, the fuse dies before the expensive stuff (tranmsformers etc) or hard to service stuff. There is safety aspect to it, if the case somehow went live, the fuse would blow, but the size of the fuse isn’t very important in that case, assuming the case itself is also grounded, since the breaker would probably blow faster than the fuse.
