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How do fuses affect the sound quality?
How do fuses affect the sound quality?
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Old 22nd February 2019, 07:08 PM   #21
jackinnj is offline jackinnj  United States
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How do fuses affect the sound quality?
Save for the binary effect cited by Addison, fuses have about as much effect as a couple centimeters of additional trace.
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Old 22nd February 2019, 10:05 PM   #22
phivates is offline phivates  United States
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Hold on people - fuse holders are often very poor contacts, and can occasionally cause an open circuit. So when gullible folks neglect to de-ox their fuse contacts but rush ahead to the new thing, the crappy contacts will be temporarily restored due to the mechanical scrubbing that happens in the process. Snake oil? What about snark oil??
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Old 23rd February 2019, 12:58 AM   #23
Junm is offline Junm  Philippines
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I just wander how rich audiophiles fooled by these hypes...maybe its cosmetics and lovely look will signify a good hifi sound...
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Old 23rd February 2019, 04:01 AM   #24
FE3T is offline FE3T  Norway
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Peter W Belts Elctret foil, Creme electret, and "smart metal" enchanced safetypins comes to mind.
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Old 23rd February 2019, 05:57 AM   #25
kazap is offline kazap
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Quote:
Originally Posted by 6L6 View Post
One must remember that the users of these users ARE experiencing a change in the sound of their system. Itís called expectation bias, and the fact that they believe that the fuses make an improvement, along with the reinforcement of the belief through the fact that they payed for it, and installed it, will make the expectation true for them

This is how all the little tweaks and such work... Think about somebody who pays $10,000 for some fancy wire to connect 2 components together... if you believed it so much that you were willing to spend that kind of money, you think that you could get home, place into the system and hear no difference?

Yes the placebo response is a very real effect. Unfortunately it wears off. Fortunately that aids wealth redistribution.


As for the statement "One must remember that the users of these users ARE experiencing a change in the sound of their system. Itís called expectation bias," Im afraid that's actually just an unproven hypothesis and likely to be revealing an expectation bias in the writer.
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Old 23rd February 2019, 07:20 AM   #26
googlyone is online now googlyone  Australia
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How do fuses affect the sound quality?
To the original question... it is a well tried protection for tweeters in sound reinforcement applications to put a low power bulb in series... 12 volt / 3 or 5 watts springs to mind. The bulb does nothing until the current through it causes substantial heating, then the tempco of the filament increases the resistance. Works well. Once the volume comes down the bulb cools and hey presto.

On fuses... a fuse in the supply rail, and consequently outside the feedback loop of most amplifiers is benign and indeed good practise.

A fuse in the speaker line (and indeed a light bulb) is not exactly "hifi" and will increase the output impedance and indeed introduce a nonlinear impedance vs power.

The light bulb for tweeter protection is fine for sound reinforcement. I would, and have, added them when I know the speakers are in for a thrashing. By the way, the light bulb does not blow so you have a soft recovery.

A better choice is to get the crossover right, ensuring that under sane conditions the tweeter is not going to be over powered, and using an amp with sufficient headroom that it does not clip so much that the tweeter is killed by the resulting harmonics.
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Old 23rd February 2019, 07:49 AM   #27
Max Headroom is online now Max Headroom  Australia
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Quote:
Originally Posted by Junm View Post
I had resurrected this post since I'm intrigued by some audiophiles that they had noticed Sound quality changes on their amps when they change their amps rail fuse and even primary line fuse with regular type fuse with the so called "audiophile fuse" and ceramic type fuses.

Does someone here got the experience or this is just a HYPE? kindly enlightened me.

I had debated this on a group of "Audiophiles" . I had ask them proof of the so called changes but only cp recording and no comparative analysis. I just wonder how it will affect the sound especially when the fuse on the primary line.
Everything in series up to the transformer primary including AC cable and internal fuses will have an auditory impact of some sort and of some degree. Ceramic or glass tube fuses are economical and available from the likes of RS or Element14. They have a huge range, look for silica sand filled fuses of the rating you require. If you look deeper into spec sheets you will see fusing wire alloy composition and source of natural fine silica sand of at least one mfr. I forget the UK? company, the high purity quartz sand came from one spot in Wales or something. These are quality industrial spec fuses, no audio claims of course. IME silica filled fuses are first choice for a clearer nicer sound, the fuse wire alloy is sonically important also, there were copper/silver alloy or copper with silver plating or plain silver types IIRC. The effects are subtle but give give a better clarity and a better dynamics for little outlay and you are probably getting most of the sound of the boutique ones.......I haven't tried the expensive ones so I cannot judge, but I can say that the RS ones are a pleasant and useful step up from the factory fuses. Have fun researching data sheets and experimenting.

Dan.

Last edited by Max Headroom; 23rd February 2019 at 07:52 AM.
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Old 23rd February 2019, 12:05 PM   #28
6L6 is offline 6L6  United States
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How do fuses affect the sound quality?
Quote:
Originally Posted by Max Headroom View Post
Everything in series up to the transformer primary including AC cable and internal fuses will have an auditory impact of some sort and of some degree.
What's the mechanism for this?


Quote:
Originally Posted by kazap View Post
As for the statement "One must remember that the users of these users ARE experiencing a change in the sound of their system. It’s called expectation bias," Im afraid that's actually just an unproven hypothesis and likely to be revealing an expectation bias in the writer.
Thank you for proving my point.
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Old 23rd February 2019, 12:06 PM   #29
TNT is offline TNT  Sweden
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Old 23rd February 2019, 12:09 PM   #30
adason is offline adason  United States
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Placebo effect...
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