Lan noise reducer

[kitfit1]

One thing I would say is that a lot of audio equipment these days, even moderately high end stuff, is built to a cost and the power supply filtering and noise handling in general is often not that great (if it even exists at all), which may mean you do notice some kind of difference using some of these gubbins, which wouldn't be there if they'd done a proper job in the first place :s

It depends on what you call "moderately high end stuff". In my mind an amplifier costing more than £10,000 is edging towards high end. An amplifier costing between £3,000 and £10,000 Is firmly in the mid range.....................................so what exactly do you mean ?

 

[Rroff]

It depends on what you call "moderately high end stuff". In my mind an amplifier costing more than £10,000 is edging towards high end. An amplifier costing between £3,000 and £10,000 Is firmly in the mid range.....................................so what exactly do you mean ?

Wherever you draw the boundaries there is far too much built as cheaply as they can get away with, often with a first batch using higher quality components and later ones using generic **** and/or missing some capacitors but technically still in spec despite poorer noise floor, etc.

 

[JasonM]

In short - yes. Treat noise at the source. If a mega-cost cable reduced noise then it would make sense to use it on refrigerator, the boiler, the washing machine etc Switched Mode Power Supply manufacturers are required to filter mains input but not for the reason you think. The filtering is to reduce the switching harmonics that it creates, otherwise those harmonics would prove damaging to the power distribution network. Once below a certain level they don't care - they've met regulations but mains input is still very noisy from all the sources in the house and even the mains from the street is really really bad quality - often with DC present and flat topped 50Hz wave with harmonics and noise added to that. Above a certain level of noise power companies actually charge money for noise introduced by industry that are deemed noisy.
If you're going down that route you may as well buy a mains capable/rated spectrum analyser (shows frequency across the bottom and amplitude). Several thousand pounds - use it to tune your noise reduction. Only issue is most spectrum analyser frequencies start at 9KHz as the money for that market is in high frequency (ie RF/VHF/UHF of mobile phones etc).

This is exactly my experience.

I have two products from Russ Andrews, one called the Silencer, and the other Mini Purifier with Mega Clamp, they are both broadband filters. The Mega Clamp that reduces spikes over 350volt.

The Silencers can be used to two ways. Either place them near source of noise, such as you describe near say DC transformers that are injecting harmonics, or place the Silencer directly near the components, my case the power bar.

The Mini Purifier is another broadband filter, but that's designed to fit as close as possible to your equipment.

Also your comment about noise coming down the mains, this is exactly correct. I can switch everything off on the ring main, yet these products I mention still benefit.

The audio benefits is they reduce harshness from the audio, they also make the sound more natural, more analogue sounding. Also my amplifier has less distortion in it, and it's more comfortable at higher volumes.

The following is incomparable compared to a cheap mains extension, the sound quality improvement you will never go back. Also every item below other then one was purchased pre-owned.

 

[Deleted member 77746]

Something purchased to hear things correctly to the ear shouldn’t need these gadgets. It should already be built in.

Just another money making scheme I think.

 

[JasonM]

Just another money making scheme I think.

When I have better audio ?? The differences I have there not small, I'm having substantial audio gains from these products.

Also if you read what NickK has posted, he's described the issue of noise on the mains effecting audio. Regardless of how much you spend on an amplifier or source component, that noise still exists until you at least remove some of it.

 

[SonicSW20]

You'd think for the money Mr. Andrews would bother to put the sticker on straight.

 

[hornetstinger]

£1,500 Russ Andrews Ultra Purifier Block Ag teardown

www.audiosciencereview.com

 

[JasonM]

£1,500 Russ Andrews Ultra Purifier Block Ag teardown

www.audiosciencereview.com

I don't own one of those.

The mains extension in my photo cost me £60 and it's superior to the homebase extensions you use. You talk about buying mono blocks costing in the many thousands, then think a £10 power extension is acceptable, not a single person into high end audio would do this.

You claim to run 7800 watts of amp power in your living room , if true totally ridiculous. At least post a photo of your amp and speakers

 

[hornetstinger]

I don't own one of those.

The mains extension in my photo cost me £60 and it's superior to the homebase extensions you use. You talk about buying mono blocks costing in the many thousands, then think a £10 power extension is acceptable, not a single person into high end audio would do this.

You claim to run 7800 watts of amp power in your living room , if true totally ridiculous. At least post a photo of your amp and speakers

300W RMS per channel , 5 channels
200W RMS per channel , 2 channels
75W RMS per channel x 4 channels

1800W per sub, pair.
500W sub

9.3.4 system

Can you demonstrate differences using a "metal audiophile mains adapter" and masterplug etc.

 

[JasonM]

Can you demonstrate differences using a "metal audiophile mains adapter" and masterplug etc.

You show lack of knowledge, reasons to use an audiophile mains extension over the junk you use.

1) Metal body, it shields from EMI/RFI plus it makes the extension more sturdy.
2) Higher quality wire, the Russ Andrews strip is uses OFC. Plus the RA strip wires are hand soldered to better secure them. The cheap extensions use pressed metal making up the busbars, these degrade audio.
3) Better quality sockets, plus the ones on cheap mains strips loosen over time.
4) Shielded mains wire, I can fit a shielded mains cable. You have unshielded low grade cable that should not be run next to speaker wires.
5) Design. No neon lights that inject noise, no unnecessary switches that will impoverish the sound.

With audio it's the totally of individual improvements that makes the big difference.

 

[hornetstinger]

You show lack of knowledge, reasons to use an autophile mains extension over the junk you use.

1) Metal body, it shields from EMI/RFI plus it makes the extension more sturdy.
2) Higher quality wire, the Russ Andrews strip is uses OFC. Plus the RA strip wires are hand soldered to better secure them.
3) Better quality sockets, plus the ones on cheap mains strips loosen over time.
4) Shielded mains wire, I can fit a shielded mains cable. You have unshielded low grade cable that should not be run next to speaker wires.
5) Design. No neon lights that inject noise, no unnecessary switches that will impoverish the sound.

With audio it's the totally of individual improvements that makes the big difference.

Can you demonstrate that, objectively that it makes any difference at all or just personal opinion?

 

[JasonM]

Can you demonstrate that, objectively that it makes any difference at all or just personal opinion?

What that running speaker wire next to unshielded power cable is bad?

Or the low quality sockets that get loose over time?

Or the neon lights on these things don't inject noise into the audio components?

 

[hornetstinger]

What that running speaker wire next to unshielded power cable is bad?

Or the low quality sockets that get loose over time?

I don't get any noise from the speakers from mains hum, even if I'm lazy with placement speaker/subwoofer cable near mains cable.

Perhaps if you're plugging and unplugging dozens or hundreds of times, but they're pushed in and left alone.

Can you demonstrate your claims? That generic multi way extension has worse waveform over a £1000 model?

 

[JasonM]

Can you demonstrate your claims? That generic multi way extension has worse waveform over a £1000 model?

Next time your at Cranage ask every audio setup why they use them, see what reaction you get.

 

[theone8181]

You show lack of knowledge, reasons to use an audiophile mains extension over the junk you use.

1) Metal body, it shields from EMI/RFI plus it makes the extension more sturdy.
2) Higher quality wire, the Russ Andrews strip is uses OFC. Plus the RA strip wires are hand soldered to better secure them. The cheap extensions use pressed metal making up the busbars, these degrade audio.
3) Better quality sockets, plus the ones on cheap mains strips loosen over time.
4) Shielded mains wire, I can fit a shielded mains cable. You have unshielded low grade cable that should not be run next to speaker wires.
5) Design. No neon lights that inject noise, no unnecessary switches that will impoverish the sound.

With audio it's the totally of individual improvements that makes the big difference.

For number 2, why would that make any difference, unless there is an incredibly poor contact, your amp isn't going to have any issues, your amp isn't going to draw that much current. Also wondering if these silencers are so good, why would somebody ever sell them second hand (assuming that such an audiophile would never degrade themselves to built in or soundboard speakers)? I assume you took some measurements and/or did a blind test to ensure its not just a placebo effect right.....?

Editing just to add that I'm sure some things can reduce noise, but if it's already at a level that's imperceptible then it's pointless imo. Not sure if it's called noise floor, but even on "cheap" amps I don't think noise is an issue. I have super sensitive hearing (actually checked in a proper room when I used to work in aerospace) think i could hear at 20db (30db is a whisper) and the only noise I've ever heard is when I got my new bk amp and it had a hum, . They sent a cable (think it isolated the ground), and it stopped.

 

[hornetstinger]

Next time your at Cranage ask every audio setup why they use them, see what reaction you get.

"Because we have a large profit margin on them"
"Because some fools are easily parted with their money"
"Because it's just something else we sell, like magic pebbles"

 

[d_brennen]

Has anyone who's not selling or taken in with this stuff done actual analysis (charting the sound waveforms for example)? If it sounds different with the Adamantium power cable, it'll show in a graph.

 

[Zefan]

I used to work at Maplin and I told everyone that asked about the pricier, gold HDMI cables not to waste their money.

Can I get some poggers in the chat?

 

[JasonM]

"Because we have a large profit margin on them"
"Because some fools are easily parted with their money"
"Because it's just something else we sell, like magic pebbles"

Not everyone at these shows sell mains products. In the small hotel rooms they are often only showing demo's of speakers, yet they still use audiophile mains products to improve audio in their demo. Again ask them why they use these products. You either know or you don't and you clearly don't know.

 

[hornetstinger]

Not everyone at these shows sell mains products. In the small hotel rooms they are often only showing demo's of speakers, yet they still use audiophile mains products to improve audio in their demo. Again ask them why they use these products. You either know or you don't and you clearly don't know.

And some of them sell coffee mugs, which may or may not increase the sound quality of your hifi