Cleanliness next to godliness?
Printed From: Graham Slee Hifi System Components
Category: And the rest
Forum Name: Power Sources
Forum Description: Where the power comes from has always been a hot topic - even more so now with new World legislation
URL: https://www.hifisystemcomponents.com/forum/forum_posts.asp?TID=2976
Printed Date: 27 Mar 2026 at 12:35am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com
Topic: Cleanliness next to godliness?
Posted By: Richardl60
Subject: Cleanliness next to godliness?
Date Posted: 14 Jul 2016 at 10:19pm
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Running my system from a dedicated consumer unit and mains fed by 10mm twin and earth and an earthing rod to my upgraded wall socket I have tried to give my gear the best possible start in life. I decided to clean my earthing rid connections including unscrewing the clamp from the rod, all bolts, washers etc as it is between one and two years since I last cleaned it. Big improvement in all areas. Bass a lot cleaner and better defined and generally cleaner and more natural. Whilst not wishing to oversell the improvement I would liken it to a lesser degree the type of improvement seen by upgrading to the accession. I am aware there are a few members who do have earthing rods - if not cleaned recently you may wish to get your spanners, screwdrivers and cleaners out! Good luck! |
Replies:
Posted By: Graham Slee
Date Posted: 15 Jul 2016 at 9:33am
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It is also a good idea to water the ground where the earthing rod is during dry spells. ------------- That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps |
Posted By: Fatmangolf
Date Posted: 15 Jul 2016 at 9:38pm
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Good tips, many thanks. ------------- Jon Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC. |
Posted By: Richardl60
Date Posted: 06 Aug 2016 at 4:41pm
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By way of follow up to my earthing rod clean I have got around to installing (1/2) of an upgrade mains cable between outside terminating block and my wall socket. The old cable was I think 6mm twin & earth from some diy chain from memory. I have used my cable of choice (rated at 26A) but due to the need to drill a larger hole in my brickwork, the lack of a suitable drill and fading light installed only one length of cable rather than the two I had intended. Will follow this with the second length next week when my new drill bit arrives. All connectors at the terminating block outside and on my wall socket were thoroughly cleaned before install and whilst perhaps not quite the improvement of the rod clean, there have been other improvements including a far more focused sound particularly in the vocal areas on some older 60/70s CD recordings (incl Nancy Sinatra, jack Blanchard & mysty Morgan, Jimmy spheris, syreeta and Sam Cooke). Generally cleaner and more dynamic sounding but became notably more widely detached from the speakers. Some of these improvement may have down to cleaning contacts but the remainder down to the 60cm cable through my cavity. Will see what the second run achieves (if anything) later this week. Curiously the improvement seen with CD was perhaps not fully carried over to vinyl - whether just the two sides I played after the CD I cannot say. Will use ears to assess the second run later in the week. |
Posted By: Martin1
Date Posted: 06 Aug 2016 at 5:59pm
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Did you use copperslip grease on reassembly ,by any chance ? ------------- Novo Solo SRGII PSU1 Cusat 50 Senn:250 Senn: 540II & Big Wish List |
Posted By: Richardl60
Date Posted: 06 Aug 2016 at 6:19pm
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No Martin I haven't. I use deoxit cleaner and then deoxit shield external and depending on the contact components deoxit gold. I have sometimes wondered about some sort of sealant for external components but relied on wire wool and deoxit to clean. Suspect that that any copper grease type substance will have very low % conductivity/purity have followed the thought process that solid and clean contacts would provide best option. |
Posted By: Martin1
Date Posted: 08 Aug 2016 at 2:38pm
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Looks like you had it covered. ------------- Novo Solo SRGII PSU1 Cusat 50 Senn:250 Senn: 540II & Big Wish List |
Posted By: Graham Slee
Date Posted: 09 Aug 2016 at 7:32am
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We once had a Solo returned because it wasn't working properly. We found metallic deposits all over the phono sockets - insulation too. These were semi-shorting the input - placing a faulty impedance of sorts across the incoming signal. We had to replace the entire phono block because it was impossible to clean the stuff off. After doing that the Solo returned to its normal performance. Therefore I agree that cleanliness is important for best results. ------------- That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps |
Posted By: Fatmangolf
Date Posted: 09 Aug 2016 at 7:40pm
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Good maintenance tip is to unplug and replug all connectors every few months. Not while music is playing of course... ------------- Jon Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC. |
Posted By: Fatmangolf
Date Posted: 09 Aug 2016 at 7:45pm
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...and please don't touch the connectors with your fingers as the grease is not good for hi-fi. My other bugbear is that gold, as used in most hi-fi connections, does not oxidise at normal atmospheric pressures and temperatures so it is probably airborne crud (household dust, dead skin and hair) you are cleaning off. ------------- Jon Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC. |
Posted By: Richardl60
Date Posted: 09 Aug 2016 at 8:37pm
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The sockets and plugs female and male may not both be gold depending on what is being plugged in/out eg mains sockets at both ends. One further obs. When sometimes trying new hardware or cables and repeatedly plugging and unplugging the sound has appeared to 'go off'. This has happened on a number of devices and perhaps too often to be a coincidence? Once settled in I try not to unplug unless needed or o have my deoxit handy. |
Posted By: Graham Slee
Date Posted: 09 Aug 2016 at 9:56pm
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A lot of audiophile connectors are jewellery gold plated at over 20 c which is too soft and rubs off. Military quality is 9 c which is very hard wearing but doesn't do bling. ------------- That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps |
Posted By: Richardl60
Date Posted: 09 Aug 2016 at 10:36pm
| Interesting. Why is the higher k hold used I would have thought more expensive? |
Posted By: Graham Slee
Date Posted: 10 Aug 2016 at 7:44am
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Gold plating deposits a thin layer of gold onto the substrate which is a few microns thick. Different plating solutions exist for different reasons: 9c hard gold is an alloy of gold and copper intended for electrical contacts, but often you will find connectors advertising 24c which is highly unsuitable because of its softness. The depth of plating is so thin that it doesn't cost much in gold. See http://www.goldleafsupplies.co.uk/acatalog/5-Leaf-Booklets-1.html for the price of a few sheets of gold leaf. The plating thickness is much less than the thickness of the gold leaf - and much smaller in surface area. The price difference between plating solutions won't be great. Most of the cost is in the manufacturing process of the plating solutions and the cyanide salt from which it is deposited - gold won't plate from the usual electroplating solutions. I used to buy mine (9c) from Lea Ronal (Buxton), but was glad to be able to give it up because of the poisoning risk. ------------- That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps |
Posted By: RichW
Date Posted: 10 Aug 2016 at 9:55am
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I well remember the ruinous effect on my system's sound caused by a worn old 2 way mains adaptor years ago & have had a thing about good clean connections since! I also remember the trouble we had at work with some production test equipment from solder plated card edge connectors & the cheap non-gold plated backplane connectors they plugged into. The equipment would frequently 'go down' with erratic measurements & the solution was usually just a reseat of a couple of cards in their edge connectors to 'clean' the connections. ------------- Majestic/Enigma, Accession MM & MC. |
Posted By: Richardl60
Date Posted: 12 Aug 2016 at 6:59am
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Installed the second parallel run of cable last night after a little bit of drilling to my brickwork to enlarge the hole through my wall. The socket proved a little tricky to screw the cables in (even though larger receptacles than normal) but got there. Subject to any other limitations the cable current capacity from my consumer unit to back of my wall socket should now be over 50A. End result? First impressions on a couple of hours listening (Turn of a friendly card APP and Angel Clare art garfunkel) positive, mainly in soundstage and depth although generally seemed a little cleaner and easier sounding overall. Whilst installing got me thinking whether the basic external junction box I have is the best I can do? For those who do have a dedicated mains feed does anyone have any particular junction boxes they have used? Cheers |
Posted By: Richardl60
Date Posted: 18 Aug 2016 at 10:34pm
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Hi managed to find a high current junction box and after drilling, cleaning and reconnecting finally completed the exercise box should be as moistureproof as I can reasonably make it. From the rod clean, connection cleans, upgraded through the wall cable and now 60A connector block the overall sound has now kept forward considerably. Which change made biggest difference I wouldn't like to say but overall much bigger, tighter, more open and spacious sound with far bigger soundstage. Sounds very pure now (not in a cold way) with bass tighter, more controlled and seemingly drops down further when there is indeed ultra low bass. Job well done! |
Posted By: Richardl60
Date Posted: 08 Nov 2016 at 9:24pm
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Now the winter appears to be starting to set in I have had another play but internally this time with my mains supply. I have replaced/upgraded to a 100A connector block (and cleaned the cable ends) in a small distribution block near my consumer unit - brief listening suggested a little cleaner and more open sounding, but not huge. I then replaced my mains socket with a Furutech Gold socket, unusually fiddly to fit. This has been in place for around 22 hours now and sure will take a little longer to bed in fully but for the relative cost per improvement this does rank highly. The internal clamps I believe are substantial gold plated devices and the mains plug is a very tight fit - providing very good contact, not that it will be coming out anytime soon. Differences are relatively different to a lot of other installation, cable and hardware changes. A good deal of extra openness, delicacy and ease to the sound has arrived, with further fine detail. Sound has moved further out of the speakers with greater naturalness and solidity/focus. On a number of well known tracks (CD at present only), there have been quite a few with changes of tempo/speed within bass lines I have never noticed before. On the first one it sounded initially like a bit of wow from an old turntable but became apparent this was the performance rather than a flaw. Other than maybe taming an upper vocal area forwardness there has been minimal change in balance so far nor has there been any significant change in the bass tightness, punch or attack which I had perhaps anticipated. I suspect that the benefits are enhanced by removing other weaker links in the mains chain and will not simply reflect a simple socket change. It does sound increasingly like vinyl which is great and the subjective noise floor does appear lower too as with good vinyl. Very enjoyable and difficult to switch off! I have also plugged in an upgraded DC mains lead to my Accession so once that cable has burned in in 2-3 weeks I will have a switch back to some serious vinyl listening. |
Posted By: Suggs
Date Posted: 09 Nov 2016 at 6:46am
All very interesting stuff, It's incredible that changing something such as a mains socket, plug or cable can change the sound to any noticable degree, well done Richard  Out of interest what upgraded DC cable are you trying now to power the Accession? It will be very interesting to see what you think of that change when you have evaluated it ------------- Derek |
Posted By: Richardl60
Date Posted: 09 Nov 2016 at 7:13am
| The DC is custom built, it is using an Oyaide gold DC plug and pure Silver cabling. Won't be trying for a couple to three weeks to allow for burn in- I have noticed significant changes over long periods in the past. There may be no differences but won't know until tried. |
Posted By: Richardl60
Date Posted: 09 Nov 2016 at 7:15am
| Ps where I started this thread I am sure that cleaning/new contacts are also a very good starting point and sure will contribute here also when terminations are cleaned. |
Posted By: RichW
Date Posted: 10 Nov 2016 at 4:28pm
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Interesting to read of your mains improvements Richard - keep us posted. Mains cabling etc seems to be one of the most controversial topics in HiFi, but a clean, low impedance mains supply just seems very sensible! Do you use any mains filtering at all? ------------- Majestic/Enigma, Accession MM & MC. |
Posted By: Richardl60
Date Posted: 10 Nov 2016 at 7:03pm
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Tried two different filtering devices from a well known Cumbrian distributor but sent them both back as I couldn't tell any difference. I cannot really understand why it is controversial though aware there is an antibrigade seemingly in many cases without trying for themselves. |
Posted By: RichW
Date Posted: 11 Nov 2016 at 9:38am
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Substituting a kettle lead for the Cumbrian company's '8TCM' mains lead to power the DAC I was using in mid 90s made a noticeable improvement. Whether this improvement was down to the RFI reducing properties of the braided construction or simply due to better quality connectors I don't know - likely a combination of both. One of their small plug-in filtering boxes made no difference. ------------- Majestic/Enigma, Accession MM & MC. |
Posted By: Sturgus
Date Posted: 13 Nov 2016 at 4:07am
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Every spring and fall I break down my whole system and clean all contacts with Deoxit. Amazing how much crud can accumulate in 6 months time. I have 2 dedicated 20 amp lines in my listening room. This was a nice improvement. One of the best things I did was running my amps through a large Topaz Isolation transformer. This made more difference than I ever thought it would. The whole system just got quieter. Thinking of trying another one on my preamp and sources. The only thing is my listening position is close and the large transformers have a bit of hum when sitting close. Sturgus ------------- Musical Design pre/Dac/Phono Amps Aronov VPI HW-19 Lustre 801 /Koetsu-Rosewood /GS Elevator/Accension / LP12 Audiomods-Nagoka500 Merlin VSM speakers Dalhquist subs Pioneer pd-75/ squeezebox |
Posted By: Richardl60
Date Posted: 15 Nov 2016 at 10:51pm
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Mains socket now in place for a week and would consider should be somewhere near burned in by now with 190 hours. End result? More of he same, mid-upper great, appears a little greater clarity/smoother and continues to be very open and as also commented by a close relation the presentation does appear different, for the better not necessarily frequency balance but image and generally more natural (vinyl like) presentation and fine layered detail. The bass has lightened and tightened quite a bit without losing the low bass. The latter is a change from last week but it is possible Variable may have some impact. We had a replacement upvc bay window which sits behind the speakers and also had to disconnect the speaker cables and move speakers. I did not clean the plugs or terminals as out of deoxit gold but the stands are in exactly the same spike holes in the carpet so no positioning differences. Whether the new windows and removing & reconnecting the cables has made a difference to the bass I cannot say. The end result is most certainly worth the effort & cost for which the improvement is totally of line with the cost. Will try the DC lead next week! |
Posted By: Richardl60
Date Posted: 10 Dec 2016 at 12:44am
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I have now finally tried my new custom made DC lead to my Accession. The lead is pure silver and unshielded with an Oyaide gold DC plug to the Acesssion. Lead looks nice and is just the right length for my application -around 50cm and the Oyaide is a nice tight fit in the back of the accession, good start. First impressions? Given it has been 3months+ since listening to any vinyl and I had upgraded wall socket and connector blocks as set out in previous posts it did sound good. Since it was late I thought I would switch to the standard lead. The standard DC lead did bring an edge to the sound, some noticeable sibilance which wasn't there before. In general less refined and a bit constricted even bit shouty around the vocal area, but certainly a little less smooth and natural. Bass now displaced a trace of 'bloom' which detracted from the overall presentation. Overall it appeared a smaller version of the differences encountered with the mains lead in to the PSU. I am sure both plug and cable have contributed. Finally reverted back to the new DC lead. Now smoother and more refined with more body. The differences are not mind blowing but from my experiences in my system worthwhile and provide a less fatiguing listen, flows a little better too. I would have considered my Elevator but for two things, firstly it is the older hard wired version so not so easy and in the event graham delivers the Accession MC I may only need one PSU and DC lead! Whilst not advocating anyone invests vast sums of money in new exotic leads, both mains and DC leads with high quality plugs have brought additional refinement and naturalness to an already great product. |
Posted By: Suggs
Date Posted: 10 Dec 2016 at 6:53am
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Interesting findings Richard...as your DC cable upgrade is not a commercially available one, maybe John C could look at offering a DC cable upgrade as an option for use with anything driven from a PSU/1 ------------- Derek |
Posted By: Richardl60
Date Posted: 10 Dec 2016 at 8:43am
| Yes definitely though the power lead to the PSU had the bigger difference. This was raised almost two years ago with Graham/John. |
Posted By: jwatson
Date Posted: 26 Dec 2016 at 1:09pm
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Hello Richard, Apologies for the late entry into an old thread, I've been messing around with my own power cables recently but have only just seen this thread. In my own experiments, I've personally not found any significant differences when using reterminated audio mains cables but as you rightly noted in that thread, this could well be down to the non-orthodox (no-neutral) electrical supply in Saudi. I am of course interested in anything that can improve the rendering of a given source material so am interested in experimenting to see what improvements can be made. I probably tend towards the skeptical side of the power cabling fence but am conscious that this leaves me a victim of the 'cable skeptics paradox' (e.g. In asserting that listeners who perceive differences between cables are being swayed by preconceptions I have to accept that my own preconceptions may, by the same token, contribute to me not hearing differences that may be present). Just a reminder when cleaning grounding systems to be careful not to use any form of cleaning fluid that can leave a residue (e.g. brasso etc.). When cleaning earth rods and copper RF contacts on transmitter sites we only ever used a mild abrasive (e.g. green washing up pad), rags and IPA or 'trike' (trichloroethylene - probably banned now). In the case of external earth rods, the joint between the earth bond and rod was then wrapped in 'denso tape'; a gungy bandage that hardens slightly on the outer surface to form a barrier, preventing the inner layers from drying completely. I've removed Denso from equipment after a > 10 year period to find the copper surfaces inside free of corrosion. On sites with low ground conductivity, some of my colleagues have used Marconite (a favorite as it was developed by the Marconi company where we worked) or Bentonite (essentially clay pellets that retain moisture) to improve the rod / ground interface. I've also heard of amateur radio operators using particular brands of (unused :-) ) cat litter for the same purpose but have not personally seen any measured results of this (unlike the afore mentioned marconite/bentonite which produces measurable benefits). As Graham rightly points out earlier in the thread, keeping the ground around the rod will help. For cleaning audio jacks, a number of older hands on Voice of America sites used to swear by the use of dollar bills used as a mildly abrasive cleaner, cleaning the male connector prior to running it in and out of the jackfield a few times before a final wipe over with the dollar bill. An older style of dollar bill is apparently slightly rough to the touch but soft enough to prevent damage to the gold plating. (I believe that the newer style of bill doesn't work as well). My own thoughts are that audio mains cables upgrades attempt to address two primary functions; - Electrical Conductivity (i.e. provide a low resistance path to the power source) - Filtering / Screening (Suppression of undesirable RF noise into the system) My guess is that for systems already employing appropriately sized conductors, further improvements to the conductivity in the last metre or so of a cabling system effectively extending several kilometers will be insignificant. I see greater merit in cable screening; not only to reduce the amount of RF entering the cable (again within the context of conductor several km long this is not likely to be very significant) but also to minimise the coupling of mains borne RF onto adjacent small signal audio interconnect cables. I'd be interested to hear from anyone who's tried clamping ferrites close to the plug (wall) end of the power cable? I've tried but didn't detect any differences when adding ferrites in any position. Kind regards James ------------- "I bought some more old vinyl today 'cos old vinyl won't ever let you down" Majestic DAC -> {Proprius -> Tannoy Stirling | Solo UL -> HD820} |
Posted By: Richardl60
Date Posted: 08 Sep 2017 at 9:55pm
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Being overdue for my mains cable connectors I thought I had better clean them before nights get too dark and wet. Took apart the connections & cables next to the consumer unit, on the external wall and cleaned them with deoxit, gold, shield as appropriate for connectors and installed a higher rated 100A connection block on my outside wall. Also took my earth rod connection apart- on opening the access cover this looked well overdue with corrosion evident and also noted that the screw clamp on top of the rod as cracked/broken. Cleaned, treated and reassembled best I could until I can get a new connector. As found previously significantly more open and detailed and less forced. A touch brighter but from past experience settles down. Will set about my wall socket and then all other plugs at some point. As found previously I am listening with volume up a click or two as notably cleaner sounding with apparently quieter backgrounds. Perhaps shows that things do deteriorate gradually without really noticing. |
Posted By: Richardl60
Date Posted: 29 Sep 2017 at 9:06pm
| After time away on first listening the slight edge/stridency which is apparent when first 'cleaned' has gone in my absence over the last 3 weeks so the sound remains very clean, open, spacious, fast, dynamic, tight, focused and very foot tapping! Finding difficult to take the CD off but next album WILL be vinyl. |
Posted By: Chris Firth
Date Posted: 24 Feb 2018 at 3:15pm
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This week I have been playing with clip on ferrites. The proliferation of cheap & nasty SMPUs in the last quarter century has had quite a marked and negative effect on sound quality. This week I have been putting clip on ferrites at trailing socket boards, and I have been very pleased with the resultant improvement in sound quality. The idea is mop up the worst effects of switching noise (because it appears that just about every SMPS manufacturer fell asleep before they got to the line in the spec about providing sufficient filtering), and stop it from radiating back onto the mains. I went on the bay of E and ordered what I thought were sufficient ferrite to cover the house. My ferrites arrived in the post on Thursday, and I was listening to some music via headphones as they dropped through the letterbox. I paused the music, and spent a few minutes clipping ferrites to various power flexes, and resumed listening. My initial response was one of shock - sound level seemed to be lower than it was when I paused the music, yet I had not touched the volume control of my Solo SRG II. What I heard was improved resolution in all areas. There was greater tonal colour. There was improved rhythmical timing. There were instrumental parts buried in the mix that I'd never heard properly reproduced before - the list goes on. More importantly, I lost the HiFi and the music came flooding out at me. I thoroughly recommend trying cleaner mains electricity - we had it when I was a lad, and it's nice to get it back again. |
Posted By: Richardl60
Date Posted: 24 Feb 2018 at 3:55pm
| ALl of my mains and interconnects have ferries fitted as standard though cannot comment on how they improve or change the sound I rely on the good engineering skills or the designed manufacturer who has as yet never failed to deliver |
Posted By: Aussie Mick
Date Posted: 25 Feb 2018 at 1:23am
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Hi Chris, Any chance of a link to the product you purchased? Mick. ------------- Rega RP8 - Apheta 2 - Accession MC Enigma PS -Solo ULDE (Focal Utopia) - PS Audio M700 - Fical Kanta No2 |
Posted By: Chris Firth
Date Posted: 25 Feb 2018 at 2:09am
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https://www.ebay.co.uk/itm/TDK-CLIP-ON-FERRITE-BEADS-SPLIT-CORE-EMI-RFI-3-5MM-4-7MM-8-10MM-10-13MM-USB/122248857939" rel="nofollow - https://www.ebay.co.uk/itm/TDK-CLIP-ON-FERRITE-BEADS-SPLIT-CORE-EMI-RFI-3-5MM-4-7MM-8-10MM-10-13MM-USB/122248857939 I bought 9mm ones  |
Posted By: Chris Firth
Date Posted: 25 Feb 2018 at 2:16am
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Just for the record it's gone 2am, and I'm still listening to music. I started at 10am yesterday, with just a couple of hours break |
Posted By: Graham Slee
Date Posted: 25 Feb 2018 at 6:41am
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OK Chris, now try developing an analytical test with test gear to prove what's happening. My function generator only goes to 20MHz and my scope 60MHz. I have not been able to measure any difference with any ferrite with this equipment. I have a 9kHz - 1.5GHz spectrum analyser I simply don't understand so that's no help, but if I did, I then might be able to measure something. But even if you did find something way up in the "extraterrestrial band", you will be immediately Trolled for suggesting that you can hear a difference with or without it. And sometimes they identify themselves to the prosecuting authorities as "a university lecturer". My arse! ------------- That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps |
Posted By: Chris Firth
Date Posted: 25 Feb 2018 at 12:32pm
Graham Unfortunately being trolled by internet "experts" is a life hazard today. In this case you need a radio ham in whose direction you point the trolls. They soon bugger off once they realise that they're dealing with someone that's forgotten more about EMI than they (the trolls) will ever learn. And funnily enough, I was talking with a friend last night while I was preparing food, told him about the ferrites, and his response was that his Dad's a radio ham, and he's almost continually banging on about the negative effects the cheap SMPS have on his hamming activities - apparently he's been going on about it for the last 30 years. Back onto my ferrite activities. I have not applied a single ferrite on any audio equipment power lead or interconnect. The clamps have all been fitted to mains gang leads, with one exception - the Raspberry Pi that hosts my FBA server had one applied to the cable feeds it 5vdc, because it's fed from a cheap SMPS. My observations about improved sound quality are purely subjective, but I haven't touched any audio equipment in the process. I'm really pleased with what I hear. The rest of the world can think what they want - I refuse to get into any arguments about the situation. On the test gear thing - I'll have a chat with another friend who designs and makes test gear - he'll point us in the right direction. |
Graham Slee wrote:Posted By: Richardl60
Date Posted: 25 Feb 2018 at 1:08pm
| Would have thought your ears should suffice Chris? |
Posted By: Chris Firth
Date Posted: 25 Feb 2018 at 1:20pm
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You're absolutely correct, Richard. My ears give me enough information to draw my own conclusion. The engineer in me is curious about how to measure the EMI and RFI, so I'll find about it sooner or later. |
Posted By: BAK
Date Posted: 25 Feb 2018 at 2:12pm
And see how many have they sold... >4600 ! Here is another source... Mouser ... TDK again ... https://www.mouser.com/Passive-Components/EMI-Filters-EMI-Suppression/_/N-18v9dZ1yzvvqx?P=1ytdx60Z1z0zl82Z1yoc2n1&Ns=Pricing%7C1" rel="nofollow - https://www.mouser.com/Passive-Components/EMI-Filters-EMI-Suppression/_/N-18v9dZ1yzvvqx?P=1ytdx60Z1z0zl82Z1yoc2n1&Ns=Pricing%7C1 There is a reason why these ferrites are used on all medical electronics and "high end" commercial computer systems... in addition to in-line AC power filters/noise suppressors. ------------- Bruce AT-14SA, Pickering XV-15, Hana EL, Technics SL-1600MK2, Lautus, Majestic DAC, Technics SH-8055 spectrum analyzer, Eminence Beta8A custom cabs; Proprius & Reflex M or C, Enjoy Life your way! |
Posted By: Chris Firth
Date Posted: 25 Feb 2018 at 3:13pm
You're dead right Bruce. What I've been doing is addressing something that has occurred over the years - the proliferation of SMPS that barely pass emissions suppression standards. |
Posted By: Graham Slee
Date Posted: 25 Feb 2018 at 3:36pm
You perhaps don't remember that this internet troll complained to the ASA... And even quoting their own EMC consultant's words back at them didn't make one ha'porth of difference. Their consultant was also our consultant. Talk about thick (ASA that is...) ------------- That none should be able to park up and enjoy the view without a smartphone and the knowledge in how to use apps |
Posted By: Chris Firth
Date Posted: 25 Feb 2018 at 4:28pm
It had slipped my mind. The ASA come across as a bunch of over educated sh1theads more interested in looking after their own sinecure, rather than even considering the truth. Technical complaints is something they can't deal with, because they don't do anything of any tangible value. |
Posted By: Richardl60
Date Posted: 25 Feb 2018 at 10:42pm
| As captain manwairing used the say 'red tape' or perhaps self appointed useless jobs worth bureaucrats of which there appear increasing numbers in this country. |
Posted By: Richardl60
Date Posted: 15 Sep 2018 at 10:25am
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I had noticed over the last month or so the sound was a ‘bit off’. This was typified by a closed in effect, boosted bass, lack of detail and dynamics and noticed this on some new vinyl but also on TV; my CD player being away couldn’t try that. Having to move cables around and kit it seemed a good opportunity to clean most if not all connections so set about my external spike, junction box, wall socket and block connections as well as turntable/arm/CD/phono stage cables and sockets. I haven’t touched my other internal junction box or back of wall socket (winter job) or my amp or speaker cables but the sound has now been restored to its expected levels and other the above sounds more fluid and interesting too. Diary card back in for next September!
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Posted By: Fatmangolf
Date Posted: 16 Sep 2018 at 11:21am
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Annual plug and unplug is a great tip for all of us. Thanks Richard. ------------- Jon Open mind and ears whilst owning GSP Genera, Accession M, Accession MC, Elevator EXP, Solo ULDE, Proprius amps, Cusat50 cables, Lautus digital cable, Spatia cables and links, and a Majestic DAC. |