Hifi Tuning Fuses

I purchased one from The Cable Co. for my JoLida 502B. I didn't really expect to hear an improvement and was surprised that I did. I'd made some other changes around the same time so wasn't altogether what to attribute to the fuse. More recently, a tube went and took the fuse. I replaced it with a Radio Shack fuse (5 for $2 or whatever). I missed the HFT fuse for sure. Without it - the music seemed to lack weight (fullness? presence?) and be less detailed. Possibly also gave up some bass "punch". Just a tad "lifeless" overall (I'm not good at describing what I hear). For $30 (and I'm very budget conscious) I would recommend you try it. I'm also someone that had been very skeptical about the difference cables, interconnects etc might make. I've changed opinions in that regard - the HiFi Tuning Fuse contributed to this process.

Douglas S. - Note past tense; emphasis on "HAD been very skeptical....". I've definitely come around in my opinion about cables. No opportunity to do A/B testing where I am but based on reviews (I have found TNT Audio to be really helpful) and affordability, I upgraded some very old Monster speaker cables to JPS Labs Ultraconductor. Also purchased a Superconductor FX interconnect for CDP to amp. Those changes made a big positive difference in my system. Made a DIY power cord using Marinco parts and Belkin(?) 12 gauge cable following a method at the PartsExpress site. I'm less certain what impact if any this has had. But directionally, it can't have been a step backwards. Power conditioning is something I'm interested in but it seems "pricey" to me. The HiFi Tuning Fuse came after the cable upgrades and confirmed to me that given the ability of other components to support some necessary minimum level of resolution, other seeminly "minor" system changes can have a strong positive effect on sound.
(I'll check out your article). Thanks for the reply.

Tbg - I wasn't aware of Isoclean as an "audiophile" fuse option prior to your post. Thanks for that. I did a little internet searching and came across a review of them by Albert Porter. Whether he or another, the reviewer did prefer them over the HiFi Tuning Fuse. The Isocleans are ~$5.00 less than the HFTF but if I read correctly, the Isocleans are only available as "slow blow". Let me know if that's your understanding too. Since I'm only using 1 and since my amp calls for a fast blow fuse, I'm sort of reluctant to take the gamble on the Isoclean.

Thanks for the input Tbg. You are right. I'm using a "small" HFTF. Pricing for the larger HFTF is more.