Fourlegs

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About Fourlegs

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    Melton Mowbray
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    Nick

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    I am in the Hi-Fi trade

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  1. Fourlegs

    Chord Hugo MScaler announced at CanJam London 2018

    I look forward to that.
  2. Fourlegs

    Chord Hugo MScaler announced at CanJam London 2018

    Well guys, I’ve got news for you, the Rob Watts designed MScaler is way more than a simple upsampler. I’ve had one now for many months in the Blu mk2 and it is stunning. I quietly suggest that you do a little research or even ask nicely to see if you can listen to one. When you have heard one I am pretty sure you will want to withdraw your comments.
  3. Have you guys seen what had been announced this weekend? The long awaited Chord Electronics stand alone MScaler named Hugo MScaler with a price tag of £3495 and due to be available in the Autumn. It has the same footprint as the TT range but has the same MScaler technology as the top of the range Chord Blu MkII MScaler. It is causing quite a stir coming on the heels of the also recently announced Hugo TT 2 DAC.
  4. Fourlegs

    Ethernet Cable for streaming

    How do you know that you don’t have RF issues?
  5. Fourlegs

    Ethernet Cable for streaming

    You may be aware that their servers including the top end SE and soon coming Statement have only usb out and I have asked why they pursue this rather than optical which stops common mode noise but the only answer so far is that usb has advantages over optical. So, sorry, can’t help any more on that.
  6. Fourlegs

    Ethernet Cable for streaming

    @TheFlash said "If the ethernet cable isolation is not perfect, something is getting past the isolation. This something may be "common mode noise" (whatever that is) as you suggest. Whatever it is, as you said yourself in your earlier post, it does NOT affect the digital signal: all the 1's and 0's arrive intact and in the right order. So:" Common mode noise is where the noise is the same value/direction on both conductors (signal and ground), hence why transformer isolation would normally take this out. (as opposed to differential noise where the noise voltage has a differential between the conductors - ie just like a normal signal). "how can this noise possibly affect the sound?" In truth I am not sure of the mechanism and whether the RF noise affects the function of the DAC or whether the RF travels through the DAC or circuits and interferes with the output analogue signal. Whatever the mechanism, I have enough clear evidence that RF common mode noise affects at least one device chain (Blu2/Dave) that it is reasonable to think that it may happen in other digital device chains such as the LAN or ethernet connected devices we are discussing here. Note that I am not saying it DOES affect ethernet connected devices, only that it may affect them. "Does it only affect the sound if the receiving device has an analogue element to it?" In my view, yes. But the noise (if it exists) may carry through to another device which may be susceptible just like a carrier of a disease is not made ill but is able to pass on the disease to someone else. "Or are you suggesting that the sound would also be affected if the device was a wholly digital (ie. digital in, digital out)?" See above reply, but no, I am not suggesting that the noise can affect the music whilst it is still in the digital domain. In other words I am not suggesting that the 1's and 0's get changed or corrupted - the digital music stream is unchanged. What I am saying is that the digital in and digital out device can act as a link for the noise, if it exists, to be carried further down the chain where it may affect a DAC (there is always a DAC somewhere). So, for instance it may be possible that a digital server is connected by LAN and gets noise into its circuits through this cable, the digital signal outputted by the server is still the same 1's and 0's as in the original music file but there is an extra overlaid noise on the output connection. This noise can be completely stopped in its tracks by using an optical connection but from what Innuos say, there are other quality issues associated with optical. Please note again that I am not saying this noise exists on ethernet, only that having heard what RF noise can do to the sound of music I am now reluctant to dismiss the possibility of similar noise in other digital devices without more investigation.
  7. Fourlegs

    Ethernet Cable for streaming

    If only it was that simple. The ethernet standard requires transformer isolation but this is not there for audio purposes but is to ensure data transmission success. My point is that other audio devices have galvanic isolation on their data input / output with the aim of defeating common mode noise but the common mode noise still gets through. The particular case in point and the demonstration that I did for Nigel was with the Chord Blu2 and the Dave which are linked by dual BNC and which have galvanic isolation and yet the common mode noise gets through. For all I know there might be bleed in the isolation device or elsewhere in the circuit but whatever the reason the isolation is not perfect So, sure the ethernet sender and receiver have transformer isolation but my and many others experience is that one cannot rely on that isolation to be 100% effective in other digital audio circuits and transmission so there must be a suspicion that the same might be true in audio devices that are connected to a LAN.
  8. Fourlegs

    Ethernet Cable for streaming

    Hi, here I am!! I thought I had mentioned this before but I'm not sure where. The more I delve into the digital side of hifi the more interesting it becomes. I have a thread open on my start up hifi businesses elsewhere on the Wam and as it happens my first product is a pair of digital cables to link the Chord Blu MkII MScaler and the Chord DAC. I used to be a digital cable skeptic on the basis that it is all ones and noughts and they don't change so the music cannot change. Then I heard the different digital cables available to link the Chord Blu MkII MScaler and the Chord DAC and I was blown away. The result was that I developed my own cables for this and have had the pleasure of doing personal demonstrations which have resulted in immediate sales and have also sold around the world with equal praise and thanks for the cables. And we are not talking about fifty quid cables here so something is going on where people think it is worth while to shell out a lot of money for my cables. I personally do not think it is snake oil and I am 99.999% sure it is filtering out the RF crap in the cable and leaving behind just the pure digital signal with its encoded music. Otherwise the RF crap gets into the system and results in glare, harsh treble, music seeming loud and shouty etc etc. I have heard this in the cables between the Blu2 and the Dave and I am pretty sure it happens with other digital cables as well. On this basis I think that the LAN cable is a prime suspect for the problem. As I said before, the ones and noughts are not getting changed or even swopped, it is the crap that is in the cables as well as the ones and the noughts. Hear the before and after where the crap has been filtered out and it is very obvious. I call my first witness, @TheFlash ,who has heard my demonstrations of one of my digital cables versus a standard but well made cable. I like to think that the difference is not subtle. the issue is not about bandwidth of the cable or the ability to carry the signal but it is more about filtering out the crap in the cable.
  9. Fourlegs

    HiFi Shark Scam

    I am really really confused here. The item was found on HiFi Shark - where did ebay come in? was it an ebay listing that had been found through HiFi Shark? in which case at what point did the transaction leave the eBay buying process?
  10. Fourlegs

    Petition for clean Brexit referendum

    Excuse me but what dream world do you live in? "re-run with proper controls in place on both sides" - just exactly what chance do you give of that happening? A sure as the sun coming up tomorrow both sides would bend the rules again just like both sides did before. I am sorry but I sense a certain amount of you wanting to keep running the referendum until you get the answer you want.
  11. Fourlegs

    Petition for clean Brexit referendum

    Much on both sides was lies, more lies and damn lies. As far as the expenditure thing goes, as per usual one can find evidence to support whichever side you are on. The legal view as far as I can see is that any any overspending does not invalidate the result or require a rerun unlike elections. Indeed it would be very surprising if remain was whiter than white in it's spending but there is little motive to investigate that because the result was to leave. But dig and thou shall find. I am not saying that I believe it all but I very much doubt that it is all one sided. For instance . . . . . "The government produced a 16-page leaflet, “Why the Government believes that voting to remain in the European Union is the best decision for the UK”, which was delivered to 27 million households in April (and in Scotland and Wales in May) 2016 at a cost to the public purse of £9.3 million, which did not count towards referendum expenditure. A study by Harry Pickard of Sheffield University has shown that the government’s 2016 leaflet did have a major impact on the referendum vote – those who read the leaflet were, the study shows, 3 per cent less likely to vote leave than those who had not. Among Conservative voters, exposure to the leaflet reduced the likelihood of voting leave by over 6 per cent. The government’s leaflet – and indeed the other public resources employed on behalf of a Remain vote – created a far from even playing field. Its impact was clearly very much greater than whatever BeLeave may have achieved. What is certain is that many pro-Remain campaigns relied on one donor – former Labour science minister and supermarket heir Lord (David) Sainsbury. Not only did Sainsbury donate over £2.6 million to the official Remain campaign, he donated over £2 million pounds each to the Remain campaigns of both the Labour and Liberal Democrat parties. Political parties had their own spending limits depending on the vote they achieved in the previous election – though it is itself a rather unusual move to make donations to two separate parties in one campaign. He also donated to other pro-Remain participants including the European Movement, Scientists for the EU, We are Europe, Better for Our Future, DDB UK Ltd and Michelle Ovens Ltd. Perhaps the oddest donation from Sainsbury was £210,000 to Virgin Media Ltd, which helped to pay for newspaper ads featuring a letter from Virgin supremo Sir Richard Branson calling for a Remain vote. There is no evidence that there was collusion between the different campaigns backed by Sainsbury – but it is clear that both sides of the referendum were looking for ways to spend as much on their cause without breaching the spending limits. Even if all that is alleged against Vote Leave is true (they still claim that they have not been given a fair hearing), it is clear that this did not create an unfair playing field. Both sides in the Referendum exploited loopholes to maximise how much they could spend. The Remain side had the advantage of having the government machine – and £9.3 million of public funds on clear campaign literature – on its side. If the referendum was unbalanced, the advantage was with Remain – and yet it still lost."
  12. Fourlegs

    Ethernet Cable for streaming

    This is a classic sign of RF getting into the DAC. I only know this because of my personal experiences with the Chord Blu MkII producing RF which gets into the Dave DAC. When the RF is eliminated the sound softens and digital 'glare' disappears. I have done personal demonstrations where this is immediately apparent. On a similar note and related to the thread subject, I have taken steps to lessen / eliminate RF form the ethernet cable cable that I use for streaming. It's worth a thought.
  13. Fourlegs

    Buzzing. any ideas?

    Dealing with getting rid of the problem at source as suggested by Nigel has surely got to be the way to go. If the dimmers are putting out enough crap to cause a buzz they may well be putting out all sorts of other crap that may not be directly audible but could still be affecting the quality of the sound.
  14. Fourlegs

    Buzzing. any ideas?

    Dimmers? What is this new fangled technology? We make do with candles and put out a couple of them out if it is too bright. One rarely gets RF or EMI from candles.
  15. Fourlegs

    Tannoy Venus Dead Tweeters or crossovers??

    I doubt there is any point in guessing and better to ask if you can check them out (disconnect the tweeters and put a multimeter across them to check resistance). Open circuit equals fried tweeter, a few ohms probably means the problem is elsewhere.