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Audio Grade Fuses - Page 23

post #331 of 338

If fuses are audibly different, then the differences are measurable!

Notes:

a] This may require a skilled engineer with the correct equipment.

b] The opposite may not be true.

    Measurements may not always predict with humans will hear measured differences or how they may describe them.

c] This does not apply to transducers like microphones, headphones and loudspeakers.

post #332 of 338

It should be noted that the very fact that much of the audio experience cannot be measured, and so much remains unknown, should be a signal flare that basic knowledge of electrical engineering only leads to very basic understanding of audio reproduction. For example, what are the measurements on fuse microphonic resonance? Capacitors are subject to that, and glass tubes right in the middle of the mains power -- aren't? 

 

Another example of "magic" little resistors -- the Bybee Purifiers. When I first heard about them I laughed them off. But I kept seeing them in reference setups in professional reviews, and even one reputable speaker manufacturer offered them as an upgrade stating "the largest improvement we've seen". They are basically little resistors you wire into place close to the transducers that are claimed to eliminate 1/f noise (think pink noise). Reading further into them, statements by the inventor betray the truth: in his research, conducting power through certain rare earth metals displayed the effect of filtering 1/f noise. Why this is? "No one knows". So, are the reviewers liars trying to push gear that they don't sell and don't advertise? Is everyone who has tried them a placebo-addled dummy? Maybe! But I won't know for sure until I try one. That's just how this hobby works! If you're an audiophile, that is.


Edited by GUTB - 3/7/16 at 7:32pm
post #333 of 338

If you can hear a difference large enough to have a preference, then it's rather easy to measure that difference.

Now with small Just Noticeable Difference (JNC) measurements are more challenging.

post #334 of 338
Do you have a method and means of performing such tests?

I'd be interested in learning more about this.

JJ
post #335 of 338

If the difference is large enough to have a preference, the typical frequency response, noise and distortion tests will find most differences.

The tricky part is keeping all conditions the same as in the blind listening test part of the experiment.

post #336 of 338
Quote:
Originally Posted by Speedskater View Post
 

If the difference is large enough to have a preference, the typical frequency response, noise and distortion tests will find most differences.

The tricky part is keeping all conditions the same as in the blind listening test part of the experiment.


+1

post #337 of 338
Does anyone here have experience with:
1) Adcom amps (especially 5500 & 555)
2) Magnepan speakers (especially 1.7 & 1.6 models)
3) the SQ of AMR fuses vs. any other hi-fi fuses (Are AMR fuses fairly close in SQ to the others or are they pretty far away?)

I'm just starting to formulate a plan.

Thanks,
Tim
post #338 of 338

Hi Tim, remember that the Thread Search function is your friend :o)

 

From that, my summary is that

 

(1) Dunno

(2) Fuses matter for Magnepans

(3) AMRs are great value, but can be bettered by more expensive fuses.

 

I have personal experience of (3). I would say get an AMR to start with to see if you can tell the difference in the first place. If you can, then move onto better ones. If you can't, then you haven't lost much money.

 

Personally, my next fuse for any situation will be the SR Black, based on their alleged improvement over the Reds, which I think are significantly better than the AMRs, but no one can predict whether you'll notice the difference in your situation.

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