Oh, someone else is an IEEE engineer? I'm also an AIAA engineer.
Direction of aftermarket fuses (only for believers!)
It is with reluctance that I start another thread on this topic with the ONLY GOAL for believers to share their experience about aftermarket fuses.
To others: you can call us snobs, emperors w/o clothes,... etc but I hope you refrain posting just your opinion here. If you did not hear any difference, great, maybe there isn’t.
The main driver for this new post is that I am starting a project to mod my NAD M25 7 ch amp for my home theater. It has 19 fuses (2 per channel, 4 on the power supply board, 1 main AC) and I will try a mix of AMR Gold, SR Black and Audio Magic Platinum (anyway that is the plan, I may try out some other brands/models). As it is reasonably difficult to change them, esp the ones on each channel module that requires complete disassembly, I would like to know what the direction is for these models mentioned and of course, others who HAVE HEARD there is a difference please share your experience on any fuse model you have tried.
Fuses are IME directional:
Isoclean is one of the first to indicate the direction (2008/2009) on their fuses. Users of HiFi Tuning (when the awareness rose quite a bit amongst audiophiles) have mostly heard the difference.
As an IEEE engineer, I was highly skeptical of cabling decades ago (I like the speaker design of John Dunlavy but he said on many occasions that cables nor footers matter at all, WRONG!). Luckily, my curiosity proved me wrong as well. I see the same skepticism that I and many others had about the need for aftermarket cables many, many years ago now on fuses and esp on the direction on fuses.
Another example is the direction of capacitors (I do not mean electrolytic types). Even some manufacturers now and certainly many in the past did not believe it can make a difference sonically. Maybe some do but it takes time in the assembly to sort and put them in the right direction/order (esp as some of the cap manufacturers still do not indicate "polarity") so that maybe is one argument why this is not universally implemented.
To others: you can call us snobs, emperors w/o clothes,... etc but I hope you refrain posting just your opinion here. If you did not hear any difference, great, maybe there isn’t.
The main driver for this new post is that I am starting a project to mod my NAD M25 7 ch amp for my home theater. It has 19 fuses (2 per channel, 4 on the power supply board, 1 main AC) and I will try a mix of AMR Gold, SR Black and Audio Magic Platinum (anyway that is the plan, I may try out some other brands/models). As it is reasonably difficult to change them, esp the ones on each channel module that requires complete disassembly, I would like to know what the direction is for these models mentioned and of course, others who HAVE HEARD there is a difference please share your experience on any fuse model you have tried.
Fuses are IME directional:
Isoclean is one of the first to indicate the direction (2008/2009) on their fuses. Users of HiFi Tuning (when the awareness rose quite a bit amongst audiophiles) have mostly heard the difference.
As an IEEE engineer, I was highly skeptical of cabling decades ago (I like the speaker design of John Dunlavy but he said on many occasions that cables nor footers matter at all, WRONG!). Luckily, my curiosity proved me wrong as well. I see the same skepticism that I and many others had about the need for aftermarket cables many, many years ago now on fuses and esp on the direction on fuses.
Another example is the direction of capacitors (I do not mean electrolytic types). Even some manufacturers now and certainly many in the past did not believe it can make a difference sonically. Maybe some do but it takes time in the assembly to sort and put them in the right direction/order (esp as some of the cap manufacturers still do not indicate "polarity") so that maybe is one argument why this is not universally implemented.
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- 233 posts total
Atmasphere wrote, "This was the first thing that came up when I googled it: I saw that too. That's an organization, not a field of endeavor like mechanical or electrical engineering" Gosh, really? Geoffkait: "I'm also an AIAA engineer." to which Atmasphere retorted, "Given your posts here, highly unlikely." Good one! I also know how to use Google. Cheerios |
Jazzonthehudson 4-29-2016No, I haven't. My background is in analog and digital circuit design involving conventional voltages. BTW, as I mentioned a while back in one of the other fuse threads, Wikipedia writeups dealing with quantum tunnelling make no mention of ultra-high voltages: https://en.wikipedia.org/wiki/Quantum_tunnelling https://en.wikipedia.org/wiki/Classical_and_quantum_conductivity Best regards, -- Al (IEEE Life Member) |
Al, have I fallen for a SR marketing trick? Their website states repetitively "... By applying a two million volt signal to a cable at a specific pulse modulation, and ultra high frequency for an exact duration of time, we transform the entire cable at a molecular level through a process we call Quantum Tunneling...." FYI I was part of the AP/MTT chapter and worked for a large telecom equipment manufacturer so no high voltage experience. I did had fun with Microwave oven trafo powered arcing in labs though... |
- 233 posts total