Fuses that matter.

I recently listened to the AMR fuses, The Hi-Fi Tuning Supreme, and the Synergistic fuses.

On tube equipment, I like the AMR over the others. They are more tonally correct and counteract the tendency of tube equipment to sound "soft". These differences are slight, but very noticeable. The Supreme fuses were just a little too bloomy, and the midrange on up had a slight glare or emphasis.

On the solid state equipment,(I only tried two components), The Supreme fuses gave a little more bloom and weight, while bringing out more detail, which silver usually does. The effect was slight and welcomed. It was not like using a silver interconnect, or worse yet, a silver conductor power cord. Those usually soften the bass too much, and throw off the tone. The Supreme fuses are like adding some of the positive aspects of silver conductors, while minimizing the usual negatives.
I may need more time with the Synergistic fuses, but my first impressions are they are more shrill than the others, but are quite clear in the upper treble range.

In response to Lacee's question, yes I do think the sonic signature of the fuse should be in synergy with each component. It is unfortunate, but like power cord comparisons a few years ago, people were saying this brand of cord is superior to that brand. As most of us know now, a power cord that sounds excellent on one component may not be very good on another component.
Same with fuses, in my limited experience. I have not tried the Audio Magic liquid fuse, but I have recently played with Hi Fi Tuning Gold and Supreme, Furutech, AMR, Synergistic, and one by Create, which has one end Gold plated and the other end Rhodium plated. So far, I am not much impressed with the Synergistic or the Create.
My opinion at this point is similar to Agisthos; fuses color the sound and are a hassle. I like the idea of a circuit breaker, which many manufacturers have chosen to use instead of a fuse. But don't go changing your fuses to circuit breakers right away...that's not what I am suggesting, unless you are really into it. And I do not suggest putting a metal slug in place of the fuse, as Agisthos and some others are doing. But that is up to you.
Sorry not to be definite here, but I can't be.
And the "Chips" ? I tried those on output transformers, and I must say the sound improvement is quite good. I have no idea how or why they work!