• Thanks to each and every one of you for being part of the What Hi-fi? community! We hope you have a joyous holiday season!

Has my mains cable ruined my amp?

Page 2 - Seeking answers? Join the What HiFi community: the world's leading independent guide to buying and owning hi-fi and home entertainment products.

CnoEvil

New member
Aug 21, 2009
556
14
0
Visit site
BenLaw said:
CnoEvil said:
@ Ben

I think your assessment is reasonable and well considered. If you read through their blurb, it explains how this device came into existence. Check out the section called "White Paper" and scroll down to the paragraph starting "We used a high power audio amplifier" (opposite the first graph). It describes how getting their results "indirectly" was inefficient.....so this device was conceived.

They also say this:

After many months of testing we found that the results of the test comparisons were not always consistent and repeatable. The input voltage from the wall outlet to the amplifier could vary based upon time of day and other loads within the building. The test could vary depending upon the load on the amplifier and the specific heat that the amplifier was generating.

This could actually be used as an argument for mains regneration, which in a sense is designed to do what their machine does. But it rather seems to disprove their philosophy that (in the real world) all can be solved with after market mains cable and that doing so is an entirely different 'philosophy' from mains regeneration.

It also shows how fickle this whole area is, and how results can vary.

I didn't like the effect of an Isol 8 regenerator, but the Atlas Balanced transformer was much better.

IMO. If all this area gets debated in a reasonable manner, it does more good than harm.
 

BenLaw

Well-known member
Nov 21, 2010
475
7
18,895
Visit site
CnoEvil said:
It also shows how fickle this whole area is, and how results can vary.

I didn't like the effect of an Isol 8 regenerator, but the Atlas Balanced transformer was much better.

IMO. If all this area gets debated in a reasonable manner, it does more good than harm.

Oh man, if I'm doing more good than harm I'd better stop.... ;)

There's a couple of very happy users of the Pure Power regenerator with active ATCs. I believe price is around £2k. Given the cost and that I'm so happy with how my system sounds, I can only see myself trying this when I have changed the system (probably for ATC actives) and when I have lots of disposable income (probably won't happen again for 20 years, if ever ;) )

MattSPL is a huge fan of after market fuses, have you experimented with these?
 

BenLaw

Well-known member
Nov 21, 2010
475
7
18,895
Visit site
CnoEvil said:
BenLaw said:
MattSPL is a huge fan of after market fuses, have you experimented with these?

No, but they are on the perimeter of my radar.

Given their relatively modest cost, I am :O

Matt recommends Hifi Tuning Supreme fuses IIRC. I would be interested to hear your thoughts as and when you do try as I would have thought the fuse would be a 'bottleneck' for those who are using and consider worthwhile aftermarket mains cable.
 

Tonya

Well-known member
Sep 9, 2008
57
3
18,545
Visit site
First musical mains cables now musical fuses?
Oh good grief!
Perhaps I should change out the fuses & mains cable on the SoundCraft Vi1 production mixer that I use every day to get a better sound :?

Erm, no thanks, I think I'll stick with the original designer's specification istandard issue ordinary boring stuff that delivers 220 volts at the correct amperage.

However if one thinks one can hear the slightest accoustic difference by replacing a mains cable then it's money well spent.
 

lesmallett

New member
Sep 5, 2010
36
0
0
Visit site
You're going to hate this one then as changed my fuses so they are all Russ Andrews 13amp and things are sounding better. Think this is mainly because their was 5 amp fuses in the amp and TV plugs.
 

chebby

Well-known member
Jun 2, 2008
1,257
34
19,220
Visit site
lesmallett said:
You're going to hate this one then as changed my fuses so they are all Russ Andrews 13amp and things are sounding better. Think this is mainly because their was 5 amp fuses in the amp and TV plugs.

Aren't fuses supposed to be the correct rating for safety reasons?

Russ Andrews clearly state...

"WARNING - Only fit 13A fuses to cables rated at 13A. Fitting a 13A fuse to a cable with a lower Amp rating is dangerous and may cause severe damage in the event of a fault. ALL Russ Andrews cables are rated at 13A. If you're unsure about the rating of a non Russ Andrews mains cable, please check with the original manufacturer. Russ Andrews Accessories Ltd. accept no responsibility for the misuse of this product."
 

lesmallett

New member
Sep 5, 2010
36
0
0
Visit site
I was told that all equipment has it's own internal fuse so the fuse in a plug is redundent.

Also the amps regular cable had a 13 amp fuse, it's just the replacement I was using didn't.
 

clearer_audio

New member
Oct 20, 2007
2
0
0
Visit site
chebby said:
"WARNING - Only fit 13A fuses to cables rated at 13A. Fitting a 13A fuse to a cable with a lower Amp rating is dangerous and may cause severe damage in the event of a fault. ALL Russ Andrews cables are rated at 13A. If you're unsure about the rating of a non Russ Andrews mains cable, please check with the original manufacturer. Russ Andrews Accessories Ltd. accept no responsibility for the misuse of this product."

lesmallett said:
I was told that all equipment has it's own internal fuse so the fuse in a plug is redundent.

Also the amps regular cable had a 13 amp fuse, it's just the replacement I was using didn't.

Hi all,

I just wanted to clarify the situation with fuses:

Russ Andrews advice is correct in that the fuse rating must not exceed the rating of the mains cable. Fitting a 13A fuse to a mains cable that is only rated up to 5A is dangerous - should a fault or overload situation occur then the cable could overheat and fail before the fuse has a chance to blow. So the plug in the fuse is certainly not redundant. In the UK the plug top fuse is absolutely critical to safety. To bypass the plug top fuse is taking a very big risk to your safety.

However, one thing not mentioned is that the fuse protects both the mains cable and the component being powered. The exception to this is if the component being powered is protected by its own fuse (either internal or external). Not all components are protected by their own fuses so it is important to check the operating manual. If for example, you powered a CD player which is not protected by its own fuse (and requires a 5A fuse - as is the case with many Cyrus CD players) but there was a 13A fuse in the mains cable powering it, then in the event of a fault or overload, serious damage could occur to the CD player before the fuse blows. Such situations can even result in electrical fires. Not all manuals state fuse requirements; in this event, you can check the rating of fuse fitted to the factory supplied mains cable.

Hope this helps.

Darren
 

hammill

New member
Mar 20, 2008
212
0
0
Visit site
clearer_audio said:
chebby said:
"WARNING - Only fit 13A fuses to cables rated at 13A. Fitting a 13A fuse to a cable with a lower Amp rating is dangerous and may cause severe damage in the event of a fault. ALL Russ Andrews cables are rated at 13A. If you're unsure about the rating of a non Russ Andrews mains cable, please check with the original manufacturer. Russ Andrews Accessories Ltd. accept no responsibility for the misuse of this product."

lesmallett said:
I was told that all equipment has it's own internal fuse so the fuse in a plug is redundent.

Also the amps regular cable had a 13 amp fuse, it's just the replacement I was using didn't.

Hi all,

I just wanted to clarify the situation with fuses:

Russ Andrews advice is correct in that the fuse rating must not exceed the rating of the mains cable. Fitting a 13A fuse to a mains cable that is only rated up to 5A is dangerous - should a fault or overload situation occur then the cable could overheat and fail before the fuse has a chance to blow. So the plug in the fuse is certainly not redundant. In the UK the plug top fuse is absolutely critical to safety. To bypass the plug top fuse is taking a very big risk to your safety.

However, one thing not mentioned is that the fuse protects both the mains cable and the component being powered. The exception to this is if the component being powered is protected by its own fuse (either internal or external). Not all components are protected by their own fuses so it is important to check the operating manual. If for example, you powered a CD player which is not protected by its own fuse (and requires a 5A fuse - as is the case with many Cyrus CD players) but there was a 13A fuse in the mains cable powering it, then in the event of a fault or overload, serious damage could occur to the CD player before the fuse blows. Such situations can even result in electrical fires. Not all manuals state fuse requirements; in this event, you can check the rating of fuse fitted to the factory supplied mains cable.

Hope this helps.

Darren
If what you say about Cyrus is true, then how does it survive in Germany for example? German plugs have no fuses and typically have 16A circuit breakers. The vast majority of the world does not have fuses at the plug. This http://www.theiet.org/forums/forum/messageview.cfm?catid=205&threadid=35752 is quite informative as to why the UK has fuses and others do not.
 

lussen

New member
Nov 28, 2009
34
0
0
Visit site
just replaced my superscreen to furutech 314g much better sound became very clean n detail voice more clear i like this furutech make my system very easy to listen good with music n movie :dance: denon 1910 + kef q300 + kef q 200 + sr mordount short 903i + velodyne impact 12 + sony bdp s370
 

TRENDING THREADS

Latest posts