@gcdrum , now those are some good analogies.
- 208 posts total
- 208 posts total
I would like to David for posting his experiences on fuse swapping .
I like many others have experienced sound differences when swapping
fuses . But before I did I was skeptical how could the power going thru a small wire ment to melt affect the sound ?
( the same can be said with power outlets and cords )
hearing is believing !
When I experimented I didn't use $100 or $150 fuses ,
I used $2 , $10 and $20 fuses in both my amp and a guitar amp .
The first thing I discovered is that a ceramic fuse sounded better than a glass fuse , so I replaced all fuses in my system with ceramic ones
for less than $25 .
I didn't like the sound of a gold plated cryro'd fuse or the audiophile directional one so I wasn't tempted to spend $100 or $200 on fuses .
I also discovered the HARD WAY that genaric cereamic fuses
should be avoided both for reliablity and sound .
Spending a lot on a fuse was hard for me but when a 1/2 price sale
on a Furutech fuse came along I had to try it .
Was it worth the price ?
It did sound better But for my pocketbook not enough to
justify replacing the other 6 fuses in my amp .
In my opinion and experience fuses can and do affect the sound .
For me its a matter of the cost benifit ratio .
As the original poster I chose to perform an experiment that I considered fun and thought it was worth while to report the results.
I chose the Pass Labs amplifier as their products do have the reputation of having a good power supply and being well built . I did not want to waste my time evaluating fuses in a product that has a questionable build quality. On all the Pass Labs amps that have fuses, the fuse is easily removed using a screw in fuse holder which is next to the on -off power supply switch. I also considered this an important reason to chose a Pass Labs amp. I do consider safety to be important.
The experiment was not designed to be sales pitch for a new product but to examine if fuses in an amplifier might affect the sound. The test results I obtained revealed that three different fuses had three different effects on the sound, and that in each case simply removing the fuse and changing the direction of the fuse also changed the sound.
I did not expect to hear a change in sound with the Bussman brand fuse. This alone made the experiment worthwhile to me. So for some audiophiles, simply changing the direction of the fuse may change the sound for the better. Fun to try if you have a fuse installed as the Pass products do.
Since changes of fuse type and direction were made multiple times an amplifier who's fuse was easy and safely removable was a conscious decision that I made.
After spending many hours doing this, I thought it would be informative to the audiophile community to publish my results. I hope others will repeat similar experiments and report their results.
At some risk of being flamed 🔥 can I point out that because of the rather long burn-in times required for fuses generally and the vagaries of fuse directionality, as well as possible fuse holder issues interfering, that any comparison or evaluation of fuses is by necessity a time-consuming affair fraught with all sorts of possible interfering conditions that might impose themselves on such a test and make conclusions questionable. Also, I think that it would be of value to select an amplifier with a reputation for a crappy power supply on which to experiment with fuses.